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Documents authored by Leal, José Paulo

Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2023.9
Narrative Extraction from Semantic Graphs (Short Paper)

Authors: Daniil Lystopadskyi, André Santos, and José Paulo Leal

Published in: OASIcs, Volume 113, 12th Symposium on Languages, Applications and Technologies (SLATE 2023)

Abstract
This paper proposes an interactive approach for narrative extraction from semantic graphs. The proposed approach extracts events from RDF triples, maps them to their corresponding attributes, and assembles them into a chronological sequence to form narrative graphs. The approach is evaluated on the Wikidata graph and achieves promising results in terms of narrative quality and coherence. The paper also discusses several avenues for future work, including the integration of machine learning, graph embedding methods and the exploration of advanced techniques for attention-based narrative labeling and semantic role labeling. Overall, the proposed method offers a promising approach to narrative extraction from semantic graphs and has the potential to be useful in various applications, including chatbots, conversational agents, and content creation tools.
Cite as

Daniil Lystopadskyi, André Santos, and José Paulo Leal. Narrative Extraction from Semantic Graphs (Short Paper). In 12th Symposium on Languages, Applications and Technologies (SLATE 2023). Open Access Series in Informatics (OASIcs), Volume 113, pp. 9:1-9:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{lystopadskyi_et_al:OASIcs.SLATE.2023.9,
  author =	{Lystopadskyi, Daniil and Santos, Andr\'{e} and Leal, Jos\'{e} Paulo},
  title =	{{Narrative Extraction from Semantic Graphs}},
  booktitle =	{12th Symposium on Languages, Applications and Technologies (SLATE 2023)},
  pages =	{9:1--9:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-291-4},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{113},
  editor =	{Sim\~{o}es, Alberto and Ber\'{o}n, Mario Marcelo and Portela, Filipe},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2023.9},
  URN =		{urn:nbn:de:0030-drops-185231},
  doi =		{10.4230/OASIcs.SLATE.2023.9},
  annote =	{Keywords: Narratives, Narrative Extraction, Information Retrieval, Knowledge Graphs, Semantic Graphs, Resource Description Framework, Web Ontology}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2023.4
Can a Content Management System Provide a Good User Experience to Teachers? (Short Paper)

Authors: Yannik Bauer, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
The paper discusses an ongoing project that aims to enhance the UX of teachers while using e-learning systems. Specifically, the project focuses on developing the teacher’s user interface (UI) for Agni, a web-based code playground for learning JavaScript. The goal is to design an intuitive UI with valuable features that will encourage more teachers to use the system. To achieve this goal, the paper explores the use of a headless Content Management System (CMS) called Strapi. The primary research question the paper seeks to answer is whether a headless CMS, specifically Strapi, can provide a good UX to teachers. A usability evaluation of the built-in Strapi UI for content creation and management reveals it to be generally consistent and user-friendly but challenging and unintuitive to create courses with programming exercises. As a result, the decision was made to develop a new teacher’s UI based on the existing Agni UI for students in an editable version. Once the development is complete, a new usability evaluation of the fully developed teacher’s UI will be conducted with the Strapi UI evaluation as a baseline for comparison.
Cite as

Yannik Bauer, José Paulo Leal, and Ricardo Queirós. Can a Content Management System Provide a Good User Experience to Teachers? (Short Paper). In 4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 4:1-4:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{bauer_et_al:OASIcs.ICPEC.2023.4,
  author =	{Bauer, Yannik and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Can a Content Management System Provide a Good User Experience to Teachers?}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{4:1--4:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.4},
  URN =		{urn:nbn:de:0030-drops-185004},
  doi =		{10.4230/OASIcs.ICPEC.2023.4},
  annote =	{Keywords: learning environment, programming exercises, programming learning, automatic assessment, headless CMS, CMS, user experience}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2023.11
Automated Assessment of Simple Web Applications (Short Paper)

Authors: Luís Maia Costa, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 112, 4th International Computer Programming Education Conference (ICPEC 2023)

Abstract
Web programming education is an important component of modern computer science curricula. Assessing students’ web programming skills can be time-consuming and challenging for educators. This paper introduces Webpal, an automated assessment tool for web programming exercises in entry-level courses. Webpal evaluates web applications coded in HTML, CSS, and Javascript, and provides feedback to students. This tool integrates with Virtual Learning Environments (VLEs) through an API, allowing the creation, storage, and access to exercises while assessing student attempts based on the created exercises. The evaluation process comprises various subcomponents: static assessment, interface matching, functional testing, and feedback management. This approach aims to provide feedback that helps students overcome their challenges in web programming assignments. This paper also presents a demo showcasing the tool’s features and functionality in a simulated VLE environment.
Cite as

Luís Maia Costa, José Paulo Leal, and Ricardo Queirós. Automated Assessment of Simple Web Applications (Short Paper). In 4th International Computer Programming Education Conference (ICPEC 2023). Open Access Series in Informatics (OASIcs), Volume 112, pp. 11:1-11:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@InProceedings{costa_et_al:OASIcs.ICPEC.2023.11,
  author =	{Costa, Lu{\'\i}s Maia and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Automated Assessment of Simple Web Applications}},
  booktitle =	{4th International Computer Programming Education Conference (ICPEC 2023)},
  pages =	{11:1--11:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-290-7},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{112},
  editor =	{Peixoto de Queir\'{o}s, Ricardo Alexandre and Teixeira Pinto, M\'{a}rio Paulo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2023.11},
  URN =		{urn:nbn:de:0030-drops-185072},
  doi =		{10.4230/OASIcs.ICPEC.2023.11},
  annote =	{Keywords: Web Applications, Static Assessment, Interface Matching, Functional Assessment, Feedback Manager}
}
Document
DOI: 10.4230/OASIcs.SLATE.2022.4
Generation of Document Type Exercises for Automated Assessment

Authors: José Paulo Leal, Ricardo Queirós, and Marco Primo

Published in: OASIcs, Volume 104, 11th Symposium on Languages, Applications and Technologies (SLATE 2022)

Abstract
This paper describes ongoing research to develop a system to automatically generate exercises on document type validation. It aims to support multiple text-based document formalisms, currently including JSON and XML. Validation of JSON documents uses JSON Schema and validation of XML uses both XML Schema and DTD. The exercise generator receives as input a document type and produces two sets of documents: valid and invalid instances. Document types written by students must validate the former and invalidate the latter. Exercises produced by this generator can be automatically accessed in a state-of-the-art assessment system. This paper details the proposed approach and describes the design of the system currently being implemented.
Cite as

José Paulo Leal, Ricardo Queirós, and Marco Primo. Generation of Document Type Exercises for Automated Assessment. In 11th Symposium on Languages, Applications and Technologies (SLATE 2022). Open Access Series in Informatics (OASIcs), Volume 104, pp. 4:1-4:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{leal_et_al:OASIcs.SLATE.2022.4,
  author =	{Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo and Primo, Marco},
  title =	{{Generation of Document Type Exercises for Automated Assessment}},
  booktitle =	{11th Symposium on Languages, Applications and Technologies (SLATE 2022)},
  pages =	{4:1--4:6},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-245-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{104},
  editor =	{Cordeiro, Jo\~{a}o and Pereira, Maria Jo\~{a}o and Rodrigues, Nuno F. and Pais, Sebasti\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2022.4},
  URN =		{urn:nbn:de:0030-drops-167506},
  doi =		{10.4230/OASIcs.SLATE.2022.4},
  annote =	{Keywords: exercise generation, automated assessment, document type assessment}
}
Document
DOI: 10.4230/OASIcs.SLATE.2022.12
Large Semantic Graph Summarization Using Namespaces

Authors: Ana Rita Santos Lopes da Costa, André Santos, and José Paulo Leal

Published in: OASIcs, Volume 104, 11th Symposium on Languages, Applications and Technologies (SLATE 2022)

Abstract
We propose an approach to summarize large semantics graphs using namespaces. Semantic graphs based on the Resource Description Framework (RDF) use namespaces on their serializations. Although these namespaces are not part of RDF semantics, they have intrinsic meaning. Based on this insight, we use namespaces to create summary graphs of reduced size, more amenable to be visualized. In the summarization, object literals are also reduced to their data type and the blank nodes to a group of their own. The visualization created for the summary graph aims to give insight of the original large graph. This paper describes the proposed approach and reports on the results obtained with representative large semantic graphs.
Cite as

Ana Rita Santos Lopes da Costa, André Santos, and José Paulo Leal. Large Semantic Graph Summarization Using Namespaces. In 11th Symposium on Languages, Applications and Technologies (SLATE 2022). Open Access Series in Informatics (OASIcs), Volume 104, pp. 12:1-12:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{dacosta_et_al:OASIcs.SLATE.2022.12,
  author =	{da Costa, Ana Rita Santos Lopes and Santos, Andr\'{e} and Leal, Jos\'{e} Paulo},
  title =	{{Large Semantic Graph Summarization Using Namespaces}},
  booktitle =	{11th Symposium on Languages, Applications and Technologies (SLATE 2022)},
  pages =	{12:1--12:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-245-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{104},
  editor =	{Cordeiro, Jo\~{a}o and Pereira, Maria Jo\~{a}o and Rodrigues, Nuno F. and Pais, Sebasti\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2022.12},
  URN =		{urn:nbn:de:0030-drops-167585},
  doi =		{10.4230/OASIcs.SLATE.2022.12},
  annote =	{Keywords: Semantic graph, RDF, namespaces, reification}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2022.9
Integration of Computer Science Assessment into Learning Management Systems with JuezLTI

Authors: Juan V. Carrillo, Alberto Sierra, José Paulo Leal, Ricardo Queirós, Salvador Pellicer, and Marco Primo

Published in: OASIcs, Volume 102, Third International Computer Programming Education Conference (ICPEC 2022)

Abstract
Computer science is a skill that will continue to be in high demand in the foreseeable future. Despite this trend, automated assessment in computer science is often hampered by the lack of systems supporting a wide range of topics. While there is a number of open software systems and programming exercise collections supporting automated assessment, up to this date, there are few systems that offer a diversity of exercises ranging from computer programming exercises to markup and databases languages. At the same time, most of the best-of-breed solutions force teachers and students to alternate between the Learning Management System - a pivotal piece of the e-learning ecosystem - and the tool providing the exercises. This issue is addressed by JuezLTI, an international project whose goal is to create an innovative tool to allow the automatic assessment of exercises in a wide range of computer science topics. These topics include different languages used in computer science for programming, markup, and database management. JuezLTI borrows part of its name from the IMS Learning Tools Interoperability (IMS LTI) standard. With this standard, the tool will interoperate with reference systems such as Moodle, Sakai, Canvas, or Blackboard, among many others. Another contribution of JuezLTI will be a pool of exercises. Interoperability and content are expected to foster the adoption of JuezLTI by many institutions. This paper presents the JuezLTI project, its architecture, and its main components.
Cite as

Juan V. Carrillo, Alberto Sierra, José Paulo Leal, Ricardo Queirós, Salvador Pellicer, and Marco Primo. Integration of Computer Science Assessment into Learning Management Systems with JuezLTI. In Third International Computer Programming Education Conference (ICPEC 2022). Open Access Series in Informatics (OASIcs), Volume 102, pp. 9:1-9:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{carrillo_et_al:OASIcs.ICPEC.2022.9,
  author =	{Carrillo, Juan V. and Sierra, Alberto and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo and Pellicer, Salvador and Primo, Marco},
  title =	{{Integration of Computer Science Assessment into Learning Management Systems with JuezLTI}},
  booktitle =	{Third International Computer Programming Education Conference (ICPEC 2022)},
  pages =	{9:1--9:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-229-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{102},
  editor =	{Sim\~{o}es, Alberto and Silva, Jo\~{a}o Carlos},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2022.9},
  URN =		{urn:nbn:de:0030-drops-166130},
  doi =		{10.4230/OASIcs.ICPEC.2022.9},
  annote =	{Keywords: programming, interoperability, automatic assessment, programming exercises}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2022.12
A Roadmap to Convert Educational Web Applications into LTI Tools

Authors: José Paulo Leal, Ricardo Queirós, Pedro Ferreirinha, and Jakub Swacha

Published in: OASIcs, Volume 102, Third International Computer Programming Education Conference (ICPEC 2022)

Abstract
This paper proposes a roadmap to integrate existing educational web applications into the ecosystem based on a learning management system. To achieve this integration, applications must support the Learning Tools Interoperability specification in the role of tool provider. The paper starts with an overview of the evolution of this specification, emphasizing the main features of the current stable version. Then, it proposes a set of design goals and milestones to guide the adaptation process. The proposed roadmap was validated with existing applications. This paper reports on the challenges faced to apply it in these concrete cases.
Cite as

José Paulo Leal, Ricardo Queirós, Pedro Ferreirinha, and Jakub Swacha. A Roadmap to Convert Educational Web Applications into LTI Tools. In Third International Computer Programming Education Conference (ICPEC 2022). Open Access Series in Informatics (OASIcs), Volume 102, pp. 12:1-12:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022)

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@InProceedings{leal_et_al:OASIcs.ICPEC.2022.12,
  author =	{Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo and Ferreirinha, Pedro and Swacha, Jakub},
  title =	{{A Roadmap to Convert Educational Web Applications into LTI Tools}},
  booktitle =	{Third International Computer Programming Education Conference (ICPEC 2022)},
  pages =	{12:1--12:12},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-229-7},
  ISSN =	{2190-6807},
  year =	{2022},
  volume =	{102},
  editor =	{Sim\~{o}es, Alberto and Silva, Jo\~{a}o Carlos},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2022.12},
  URN =		{urn:nbn:de:0030-drops-166169},
  doi =		{10.4230/OASIcs.ICPEC.2022.12},
  annote =	{Keywords: programming, interoperability, automatic assessment, programming exercises}
}
Document
DOI: 10.4230/OASIcs.SLATE.2021.2
Derzis: A Path Aware Linked Data Crawler

Authors: André Fernandes dos Santos and José Paulo Leal

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
Consuming Semantic Web data presents several challenges, from the number of datasets it is composed of, to the (very) large size of some of those datasets and the uncertain availability of querying endpoints. According to its core principles, accessing linked data can be done simply by dereferencing the IRIs of RDF resources. This is a light alternative both for clients and servers when compared to dataset dumps or SPARQL endpoints. The linked data interface does not support complex querying, but using it recursively may suffice to gather information about RDF resources, or to extract the relevant sub-graph which can then be processed and queried using other methods. We present Derzis, an open source semantic web crawler capable of traversing the linked data cloud starting from a set of seed resources. Derzis maintains information about the paths followed while crawling, which allows to define property path-based restrictions to the crawling frontier.
Cite as

André Fernandes dos Santos and José Paulo Leal. Derzis: A Path Aware Linked Data Crawler. In 10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 2:1-2:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{santos_et_al:OASIcs.SLATE.2021.2,
  author =	{Santos, Andr\'{e} Fernandes dos and Leal, Jos\'{e} Paulo},
  title =	{{Derzis: A Path Aware Linked Data Crawler}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{2:1--2:12},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021.2},
  URN =		{urn:nbn:de:0030-drops-144198},
  doi =		{10.4230/OASIcs.SLATE.2021.2},
  annote =	{Keywords: Semantic web, linked open data, RDF, crawler}
}
Document
DOI: 10.4230/OASIcs.SLATE.2021.5
Programming Exercises Interoperability: The Case of a Non-Picky Consumer

Authors: Ricardo Queirós, José Carlos Paiva, and José Paulo Leal

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
Problem-solving is considered one of the most important skills to retain in the coming decades for building a modern and proactive society. In this realm, computer programming learning is vital to enrich those skills. Practicing in this area boils down to solve programming exercises. In order to foster this practice, it is necessary to provide students with the best of the breed automated tools and a good set of exercises in a fair quantity covering the curricula of a typical programming course. Despite the increasing appearance of automated tools such as program evaluators, gamification engines and sophisticated web environments, access to exercises remains problematic. In fact, although the existence of several code repositories (most for feed computer programming contests), the majority of them store the exercises in proprietary formats and without any access facilities hindering their use. This leaves no other option to teachers but to manually create programming exercises which is time-consuming and error prone, or simply, reuse the same exercises, from previous years, which is considered as a detrimental and limiting approach to enhance multi-faceted and creative programmers. The article surveys the current interoperability efforts on programming exercises, more precisely, in terms of serialization formats and communication protocols. This study will sustain the selection of an API to feed a code playground called LearnJS with random programming exercises.
Cite as

Ricardo Queirós, José Carlos Paiva, and José Paulo Leal. Programming Exercises Interoperability: The Case of a Non-Picky Consumer. In 10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 5:1-5:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2021.5,
  author =	{Queir\'{o}s, Ricardo and Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo},
  title =	{{Programming Exercises Interoperability: The Case of a Non-Picky Consumer}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{5:1--5:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021.5},
  URN =		{urn:nbn:de:0030-drops-144220},
  doi =		{10.4230/OASIcs.SLATE.2021.5},
  annote =	{Keywords: programming exercises format, interoperability, automated assessment, learning programming}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2021.9
Mooshak’s Diet Update: Introducing YAPExIL Format to Mooshak (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, and José Paulo Leal

Published in: OASIcs, Volume 94, 10th Symposium on Languages, Applications and Technologies (SLATE 2021)

Abstract
Practice is pivotal in learning programming. As many other automated assessment tools for programming assignments, Mooshak has been adopted by numerous educational practitioners to support them in delivering timely and accurate feedback to students during exercise solving. These tools specialize in the delivery and assessment of blank-sheet coding questions. However, the different phases of a student’s learning path may demand distinct types of exercises (e.g., bug fix and block sorting) to foster new competencies such as debugging programs and understanding unknown source code or, otherwise, to break the routine and keep engagement. Recently, a format for describing programming exercises - YAPExIL -, supporting different types of activities, has been introduced. Unfortunately, no automated assessment tool yet supports this novel format. This paper describes a JavaScript library to transform YAPExIL packages into Mooshak problem packages (i.e., MEF format), keeping support for all exercise types. Moreover, its integration in an exercise authoring tool is described.
Cite as

José Carlos Paiva, Ricardo Queirós, and José Paulo Leal. Mooshak’s Diet Update: Introducing YAPExIL Format to Mooshak (Short Paper). In 10th Symposium on Languages, Applications and Technologies (SLATE 2021). Open Access Series in Informatics (OASIcs), Volume 94, pp. 9:1-9:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{paiva_et_al:OASIcs.SLATE.2021.9,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo},
  title =	{{Mooshak’s Diet Update: Introducing YAPExIL Format to Mooshak}},
  booktitle =	{10th Symposium on Languages, Applications and Technologies (SLATE 2021)},
  pages =	{9:1--9:7},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-202-0},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{94},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Portela, Filipe and Pereira, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2021.9},
  URN =		{urn:nbn:de:0030-drops-144261},
  doi =		{10.4230/OASIcs.SLATE.2021.9},
  annote =	{Keywords: programming exercises format, interoperability, automated assessment, learning programming}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2021.5
An Open-Source Gamified Programming Learning Environment (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, José Paulo Leal, Jakub Swacha, and Filip Miernik

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
The importance of e-learning tools facilitating the process of learning to program is growing, especially as the pandemic-caused lockdown enforced distance learning in many countries. The key success factor in this process is the provision of an instant and relevant feedback to students. In this paper, we describe a novel open-source programming learning environment featuring automatic assessment of students' solutions and customized gamification. This environment has been developed as a part of the FGPE framework.
Cite as

José Carlos Paiva, Ricardo Queirós, José Paulo Leal, Jakub Swacha, and Filip Miernik. An Open-Source Gamified Programming Learning Environment (Short Paper). In Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 5:1-5:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{paiva_et_al:OASIcs.ICPEC.2021.5,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo and Swacha, Jakub and Miernik, Filip},
  title =	{{An Open-Source Gamified Programming Learning Environment}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{5:1--5:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021.5},
  URN =		{urn:nbn:de:0030-drops-142210},
  doi =		{10.4230/OASIcs.ICPEC.2021.5},
  annote =	{Keywords: learning environment, programming exercises, gamification, programming learning, automatic assessment}
}
Document
Short Paper
DOI: 10.4230/OASIcs.ICPEC.2021.7
Matching User Interfaces to Assess Simple Web Applications (Short Paper)

Authors: Marco Primo and José Paulo Leal

Published in: OASIcs, Volume 91, Second International Computer Programming Education Conference (ICPEC 2021)

Abstract
This paper presents ongoing research aiming at the automatic assessment of simple web applications, like those used in introductory web technologies courses. The distinctive feature of the proposed approach is a web interface matching procedure. This matching procedure verifies if the web interface being assessed corresponds to that of a reference application; otherwise, provides detailed feedback on the detected differences. Since web interfaces are event-driven, this matching is instrumental to assess the functionality. After mapping web interface elements from two applications, these can be targeted with events and property changes can be compared. This paper details the proposed matching algorithm and the current state of its implementation. It also discusses future work to embed this approach in a web environment for solving web application exercises with automatic assessment.
Cite as

Marco Primo and José Paulo Leal. Matching User Interfaces to Assess Simple Web Applications (Short Paper). In Second International Computer Programming Education Conference (ICPEC 2021). Open Access Series in Informatics (OASIcs), Volume 91, pp. 7:1-7:6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{primo_et_al:OASIcs.ICPEC.2021.7,
  author =	{Primo, Marco and Leal, Jos\'{e} Paulo},
  title =	{{Matching User Interfaces to Assess Simple Web Applications}},
  booktitle =	{Second International Computer Programming Education Conference (ICPEC 2021)},
  pages =	{7:1--7:6},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-194-8},
  ISSN =	{2190-6807},
  year =	{2021},
  volume =	{91},
  editor =	{Henriques, Pedro Rangel and Portela, Filipe and Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2021.7},
  URN =		{urn:nbn:de:0030-drops-142237},
  doi =		{10.4230/OASIcs.ICPEC.2021.7},
  annote =	{Keywords: automatic assessment, web interfaces, learning environments}
}
Document
DOI: 10.4230/OASIcs.SLATE.2020.5
DAOLOT: A Semantic Browser

Authors: João Bruno Silva, André Santos, and José Paulo Leal

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
The goal of the Semantic Web is to allow the software agents around us and AIs to extract information from the Internet as easily as humans do. This semantic web is a network of connected graphs, where relations between concepts and entities make up a layout that is very easy for machines to navigate. At the moment, there are only a few tools that enable humans to navigate this new layer of the Internet, and those that exist are for the most part very specialized tools that require from the user a lot of pre-existing knowledge about the technologies behind this structure. In this article we report on the development of DAOLOT, a search engine that allows users with no previous knowledge of the semantic web to take full advantage of its information network. This paper presents its design, the algorithm behind it and the results of the validation testing conducted with users. The results of our validation testing show that DAOLOT is useful and intuitive to users, even those without any previous knowledge of the field, and provides curated information from multiple sources instantly about any topic.
Cite as

João Bruno Silva, André Santos, and José Paulo Leal. DAOLOT: A Semantic Browser. In 9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 5:1-5:11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{silva_et_al:OASIcs.SLATE.2020.5,
  author =	{Silva, Jo\~{a}o Bruno and Santos, Andr\'{e} and Leal, Jos\'{e} Paulo},
  title =	{{DAOLOT: A Semantic Browser}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{5:1--5:11},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020.5},
  URN =		{urn:nbn:de:0030-drops-130188},
  doi =		{10.4230/OASIcs.SLATE.2020.5},
  annote =	{Keywords: Semantic, Web, Named Entities, Search, SPARQL, RDF, COMUNICA}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2020.13
Integrating Multi-Source Data into HandSpy (Short Paper)

Authors: Hristo Valkanov and José Paulo Leal

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
To study how emotions affect people in expressive writing, scientists require tools to aid them in their research. The researchers at M-BW use an Experiment Management System, called HandSpy to store and analyze the hand-written productions of participants. The input is stored as digital ink and then displayed on a web-based interface. To assist the project, HandSpy integrates with new sources of information to help researchers visualize the link between psychophysiological data and written input. The newly acquired data is synchronized with the existing burst-pause interval model and represented on the user interface of the platform together with the already existing information.
Cite as

Hristo Valkanov and José Paulo Leal. Integrating Multi-Source Data into HandSpy (Short Paper). In 9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 13:1-13:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{valkanov_et_al:OASIcs.SLATE.2020.13,
  author =	{Valkanov, Hristo and Leal, Jos\'{e} Paulo},
  title =	{{Integrating Multi-Source Data into HandSpy}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{13:1--13:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020.13},
  URN =		{urn:nbn:de:0030-drops-130261},
  doi =		{10.4230/OASIcs.SLATE.2020.13},
  annote =	{Keywords: HandSpy, emotion, handwriting, psychology, psychophysiological, data, ems}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2020.14
Yet Another Programming Exercises Interoperability Language (Short Paper)

Authors: José Carlos Paiva, Ricardo Queirós, José Paulo Leal, and Jakub Swacha

Published in: OASIcs, Volume 83, 9th Symposium on Languages, Applications and Technologies (SLATE 2020)

Abstract
This paper introduces Yet Another Programming Exercises Interoperability Language (YAPExIL), a JSON format that aims to: (1) support several kinds of programming exercises behind traditional blank sheet activities; (2) capitalize on expressiveness and interoperability to constitute a strong candidate to standard open programming exercises format. To this end, it builds upon an existing open format named PExIL, by mitigating its weaknesses and extending its support for a handful of exercise types. YAPExIL is published as an open format, independent from any commercial vendor, and supported with dedicated open-source software.
Cite as

José Carlos Paiva, Ricardo Queirós, José Paulo Leal, and Jakub Swacha. Yet Another Programming Exercises Interoperability Language (Short Paper). In 9th Symposium on Languages, Applications and Technologies (SLATE 2020). Open Access Series in Informatics (OASIcs), Volume 83, pp. 14:1-14:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{paiva_et_al:OASIcs.SLATE.2020.14,
  author =	{Paiva, Jos\'{e} Carlos and Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo and Swacha, Jakub},
  title =	{{Yet Another Programming Exercises Interoperability Language}},
  booktitle =	{9th Symposium on Languages, Applications and Technologies (SLATE 2020)},
  pages =	{14:1--14:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-165-8},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{83},
  editor =	{Sim\~{o}es, Alberto and Henriques, Pedro Rangel and Queir\'{o}s, Ricardo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2020.14},
  URN =		{urn:nbn:de:0030-drops-130270},
  doi =		{10.4230/OASIcs.SLATE.2020.14},
  annote =	{Keywords: programming exercises format, interoperability, automated assessment, programming learning}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2020.18
Game-Based Coding Challenges to Foster Programming Practice

Authors: José Carlos Paiva, José Paulo Leal, and Ricardo Queirós

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
The practice is the crux of learning to program. Automated assessment plays a key role in enabling timely feedback without access to teachers but alone is insufficient to engage students and maximize the outcome of their practice. Graphical feedback and game-thinking promote positive effects on students' motivation as shown by some serious programming games, but those games are complex to create and adapt. This paper presents Asura, an environment for assessment of game-based coding challenges, built on a specialized framework, in which students are invited to develop a software agent (SA) to play it. During the coding phase, students can take advantage of the graphical feedback to complete the proposed task. Some challenges also encourage students to think of a SA that plays in a setting with interaction among SAs. In such a case, the environment supports the creation and visualization of tournaments among submitted agents. Furthermore, the validation of this environment from the learners' perspective is also described.
Cite as

José Carlos Paiva, José Paulo Leal, and Ricardo Queirós. Game-Based Coding Challenges to Foster Programming Practice. In First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 18:1-18:11, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{paiva_et_al:OASIcs.ICPEC.2020.18,
  author =	{Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo and Queir\'{o}s, Ricardo},
  title =	{{Game-Based Coding Challenges to Foster Programming Practice}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{18:1--18:11},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.18},
  URN =		{urn:nbn:de:0030-drops-123051},
  doi =		{10.4230/OASIcs.ICPEC.2020.18},
  annote =	{Keywords: games, automatic assessment, graphical feedback, programming, learning, challenges}
}
Document
DOI: 10.4230/OASIcs.ICPEC.2020.26
A Roadmap to Gamify Programming Education

Authors: Jakub Swacha, Ricardo Queirós, José Carlos Paiva, José Paulo Leal, Sokol Kosta, and Raffaele Montella

Published in: OASIcs, Volume 81, First International Computer Programming Education Conference (ICPEC 2020)

Abstract
Learning programming relies on practicing it which is often hampered by the barrier of difficulty. The combined use of automated assessment, which provides fast feedback to the students experimenting with their code, and gamification, which provides additional motivation for the students to intensify their learning effort, can help pass the barrier of difficulty in learning programming. In such environment, students keep receiving the relevant feedback no matter how many times they try (thanks to automated assessment), and their engagement is retained (thanks to gamification). While there is a number of open software and programming exercise collections supporting automated assessment, up to this date, there are no available open collections of gamified programming exercises, no open interactive programming learning environment that would support such exercises, and even no open standard for the representation of such exercises so that they could be developed in different educational institutions and shared among them. This gap is addressed by Framework for Gamified Programming Education (FGPE), an international project whose primary objective is to provide necessary prerequisites for the application of gamification to programming education, including a dedicated gamification scheme, a gamified exercise format and exercises conforming to it, software for editing the exercises and an interactive learning environment capable of presenting them to students. This paper presents the FGPE project, its architecture and main components, as well as the results achieved so far.
Cite as

Jakub Swacha, Ricardo Queirós, José Carlos Paiva, José Paulo Leal, Sokol Kosta, and Raffaele Montella. A Roadmap to Gamify Programming Education. In First International Computer Programming Education Conference (ICPEC 2020). Open Access Series in Informatics (OASIcs), Volume 81, pp. 26:1-26:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{swacha_et_al:OASIcs.ICPEC.2020.26,
  author =	{Swacha, Jakub and Queir\'{o}s, Ricardo and Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo and Kosta, Sokol and Montella, Raffaele},
  title =	{{A Roadmap to Gamify Programming Education}},
  booktitle =	{First International Computer Programming Education Conference (ICPEC 2020)},
  pages =	{26:1--26:7},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-153-5},
  ISSN =	{2190-6807},
  year =	{2020},
  volume =	{81},
  editor =	{Queir\'{o}s, Ricardo and Portela, Filipe and Pinto, M\'{a}rio and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ICPEC.2020.26},
  URN =		{urn:nbn:de:0030-drops-123136},
  doi =		{10.4230/OASIcs.ICPEC.2020.26},
  annote =	{Keywords: gamification, programming, learning, automatic assessment, programming exercises}
}
Document
DOI: 10.4230/OASIcs.SLATE.2019.19
Quarmic: A Data-Driven Web Development Framework

Authors: Pedro Miguel Pereira Cunha and José Paulo Leal

Published in: OASIcs, Volume 74, 8th Symposium on Languages, Applications and Technologies (SLATE 2019)

Abstract
Quarmic is a web framework for rapid prototyping of web applications. Its main goal is to facilitate the development of web applications by providing a high level of abstraction that hides Web communication complexities. This framework allows developers to build scalable applications capable of handling data communication in different models, data persistence and authentication, requiring them just to use simple annotations. Quarmic’s approach consists of the replication of the shared object among clients and server in order to communicate through its methods execution. Where the annotations, namely decorators, are used to indicate the concern (model or view) that each method addresses and to implement the framework’s inversion of control. By indicating the method concern, it enables the separation of its execution across the clients (responsible for the view) and the server (responsible for the model) which facilitates the state management and code maintenance.
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Pedro Miguel Pereira Cunha and José Paulo Leal. Quarmic: A Data-Driven Web Development Framework. In 8th Symposium on Languages, Applications and Technologies (SLATE 2019). Open Access Series in Informatics (OASIcs), Volume 74, pp. 19:1-19:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{cunha_et_al:OASIcs.SLATE.2019.19,
  author =	{Cunha, Pedro Miguel Pereira and Leal, Jos\'{e} Paulo},
  title =	{{Quarmic: A Data-Driven Web Development Framework}},
  booktitle =	{8th Symposium on Languages, Applications and Technologies (SLATE 2019)},
  pages =	{19:1--19:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-114-6},
  ISSN =	{2190-6807},
  year =	{2019},
  volume =	{74},
  editor =	{Rodrigues, Ricardo and Janou\v{s}ek, Jan and Ferreira, Lu{\'\i}s and Coheur, Lu{\'\i}sa and Batista, Fernando and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2019.19},
  URN =		{urn:nbn:de:0030-drops-108869},
  doi =		{10.4230/OASIcs.SLATE.2019.19},
  annote =	{Keywords: web development, framework, data-driven}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2018
OASIcs, Volume 62, SLATE'18, Complete Volume

Authors: Pedro Rangel Henriques, José Paulo Leal, António Leitão, and Xavier Gómez Guinovart

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
OASIcs, Volume 62, SLATE'18, Complete Volume
Cite as

7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@Proceedings{henriques_et_al:OASIcs.SLATE.2018,
  title =	{{OASIcs, Volume 62, SLATE'18, Complete Volume}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018},
  URN =		{urn:nbn:de:0030-drops-92790},
  doi =		{10.4230/OASIcs.SLATE.2018},
  annote =	{Keywords: Computing methodologies, Natural language processing, Software and its engineering, Compilers, Information systems, World Wide Web}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2018.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Pedro Rangel Henriques, José Paulo Leal, António Menezes Leitão, and Xavier Gómez Guinovart

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as

7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 0:i-0:xiv, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{henriques_et_al:OASIcs.SLATE.2018.0,
  author =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{0:i--0:xiv},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.0},
  URN =		{urn:nbn:de:0030-drops-92582},
  doi =		{10.4230/OASIcs.SLATE.2018.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2018.3
Moozz: Assessment of Quizzes in Mooshak 2.0 (Short Paper)

Authors: Helder Correia, José Paulo Leal, and José Carlos Paiva

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
Quizzes are a widely used form of assessment, supported in many e-learning systems. Mooshak is a web system which supports automated assessment in computer science. This paper presents Moozz, a quiz assessment environment for Mooshak 2.0, with its own XML definition for describing quizzes. This definition is used for: interoperability with different e-learning systems, generating HTML-based forms, storing student answers, marking final submissions and generating feedback. Furthermore, Moozz also includes an authoring tool for creating quizzes. The paper describes Moozz, its quiz definition language and architecture, and details its implementation.
Cite as

Helder Correia, José Paulo Leal, and José Carlos Paiva. Moozz: Assessment of Quizzes in Mooshak 2.0 (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 3:1-3:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{correia_et_al:OASIcs.SLATE.2018.3,
  author =	{Correia, Helder and Leal, Jos\'{e} Paulo and Paiva, Jos\'{e} Carlos},
  title =	{{Moozz: Assessment of Quizzes in Mooshak 2.0}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{3:1--3:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.3},
  URN =		{urn:nbn:de:0030-drops-92615},
  doi =		{10.4230/OASIcs.SLATE.2018.3},
  annote =	{Keywords: quiz, automated assessment, authoring, XML, feedback, e-learning}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2018.4
Raccode: An Eclipse Plugin for Assessment of Programming Exercises (Short Paper)

Authors: André Silva, José Paulo Leal, and José Carlos Paiva

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
IDEs are environments specialized in support during the development of programs. They contain several utilities to code, run, debug, and deploy programs quickly. However, they do not provide the automatic assessment of programming exercises, which is required in both learning and competitive programming environment. Therefore, IDEs are often underestimated in these contexts and replaced by basic code editors. Yet, IDEs have unique features which are essential for programmers, such as the debugger or the package explorer. This paper presents Raccode, a plugin for assessment of programming exercises in Eclipse. This plugin integrates with Mooshak to combine the diverse capabilities of an IDE, like Eclipse, with the automatic evaluation of exercises, clarification requests, printouts, balloons, and rankings. It can be used both in competitive and learning environments. The paper describes Raccode, its concept, architecture and design.
Cite as

André Silva, José Paulo Leal, and José Carlos Paiva. Raccode: An Eclipse Plugin for Assessment of Programming Exercises (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 4:1-4:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{silva_et_al:OASIcs.SLATE.2018.4,
  author =	{Silva, Andr\'{e} and Leal, Jos\'{e} Paulo and Paiva, Jos\'{e} Carlos},
  title =	{{Raccode: An Eclipse Plugin for Assessment of Programming Exercises}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{4:1--4:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.4},
  URN =		{urn:nbn:de:0030-drops-92621},
  doi =		{10.4230/OASIcs.SLATE.2018.4},
  annote =	{Keywords: automatic evaluation, programming, IDE, learning, competition}
}
Document
Short Paper
DOI: 10.4230/OASIcs.SLATE.2018.9
Asura: A Game-Based Assessment Environment for Mooshak (Short Paper)

Authors: José Carlos Paiva and José Paulo Leal

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
Learning to program is hard. Students need to remain motivated to keep practicing and to overcome their difficulties. Several approaches have been proposed to foster students' motivation. As most people enjoy playing games of some kind and play on a regular basis, the use of games is one of the most widely spread approaches. However, taking full advantage of games to teach specific concepts of programming requires much effort. This paper presents Asura, a game-based assessment environment built on top of Mooshak that challenges students to code Software Agents (SAs) to play a game, allowing them to test the SAs against each others' SAs and watch a movie of the test. Once the challenge development stage ends, teachers are able to organize game-like tournaments among SAs. One of the key features of Asura is that it provides a means to reduce the required effort of building game-based challenges up to that of creating traditional programming exercises.
Cite as

José Carlos Paiva and José Paulo Leal. Asura: A Game-Based Assessment Environment for Mooshak (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 9:1-9:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{paiva_et_al:OASIcs.SLATE.2018.9,
  author =	{Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo},
  title =	{{Asura: A Game-Based Assessment Environment for Mooshak}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{9:1--9:9},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.9},
  URN =		{urn:nbn:de:0030-drops-92677},
  doi =		{10.4230/OASIcs.SLATE.2018.9},
  annote =	{Keywords: games, programming, learning, graphical feedback, tournament}
}
Document
DOI: 10.4230/OASIcs.SLATE.2018.15
Path Patterns Visualization in Semantic Graphs

Authors: José Paulo Leal

Published in: OASIcs, Volume 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018)

Abstract
Graphs with a large number of nodes and edges are difficult to visualize. Semantic graphs add to the challenge since their nodes and edges have types and this information must be mirrored in the visualization. A common approach to cope with this difficulty is to omit certain nodes and edges, displaying sub-graphs of smaller size. However, other transformations can be used to abstract semantic graphs and this research explores a particular one, both to reduce the graph's size and to focus on its path patterns. Antigraphs are a novel kind of graph designed to highlight path patterns using this kind of abstraction. They are composed of antinodes connected by antiedges, and these reflect respectively edges and nodes of the semantic graph. The prefix "anti" refers to this inversion of the nature of the main graph constituents. Antigraphs trade the visualization of nodes and edges by the visualization of graph path patterns involving typed edges. Thus, they are targeted to users that require a deep understanding of the semantic graph it represents, in particular of its path patterns, rather than to users wanting to browse the semantic graph's content. Antigraphs help programmers querying the semantic graph or designers of semantic measures interested in using it as a semantic proxy. Hence, antigraphs are not expected to compete with other forms of semantic graph visualization but rather to be used a complementary tool. This paper provides a precise definition both of antigraphs and of the mapping of semantic graphs into antigraphs. Their visualization is obtained with antigraphs diagrams. A web application to visualize and interact with these diagrams was implemented to validate the proposed approach. Diagrams of well-known semantic graphs are also presented and discussed.
Cite as

José Paulo Leal. Path Patterns Visualization in Semantic Graphs. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 15:1-15:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{leal:OASIcs.SLATE.2018.15,
  author =	{Leal, Jos\'{e} Paulo},
  title =	{{Path Patterns Visualization in Semantic Graphs}},
  booktitle =	{7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
  pages =	{15:1--15:15},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-072-9},
  ISSN =	{2190-6807},
  year =	{2018},
  volume =	{62},
  editor =	{Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.15},
  URN =		{urn:nbn:de:0030-drops-92731},
  doi =		{10.4230/OASIcs.SLATE.2018.15},
  annote =	{Keywords: semantic graph visualization, linked data visualization, path pattern discovery, semantic graph transformation}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2017
OASIcs, Volume 56, SLATE'17, Complete Volume

Authors: Ricardo Queirós, Mário Pinto, Alberto Simões, José Paulo Leal, and Maria João Varanda

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
OASIcs, Volume 56, SLATE'17, Complete Volume
Cite as

6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Proceedings{queiros_et_al:OASIcs.SLATE.2017,
  title =	{{OASIcs, Volume 56, SLATE'17, Complete Volume}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017},
  URN =		{urn:nbn:de:0030-drops-80250},
  doi =		{10.4230/OASIcs.SLATE.2017},
  annote =	{Keywords: Programming Languages, Information Search and Retrieval, Natural Language Processing, Document and Text Processing}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2017.0
Front Matter, Table of Contents, Preface, Conference Organization

Authors: Ricardo Queirós, Mário Pinto, Alberto Simões, José Paulo Leal, and Maria João Varanda

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
Front Matter, Table of Contents, Preface,Program Committee, List of Authors
Cite as

6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 0:i-0:xvi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2017.0,
  author =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  title =	{{Front Matter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  pages =	{0:i--0:xvi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.0},
  URN =		{urn:nbn:de:0030-drops-79362},
  doi =		{10.4230/OASIcs.SLATE.2017.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
DOI: 10.4230/OASIcs.SLATE.2017.11
Enhancing Feedback to Students in Automated Diagram Assessment

Authors: Helder Correia, José Paulo Leal, and José Carlos Paiva

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
Automated assessment is an essential part of eLearning. Although comparatively easy for multiple choice questions (MCQs), automated assessment is more challenging when exercises involve languages used in computer science. In this particular case, the assessment is more than just grading and must include feedback that leads to the improvement of the students' performance. This paper presents ongoing work to develop Kora, an automated diagram assessment tool with enhanced feedback, targeted to the multiple diagrammatic languages used in computer science. Kora builds on the experience gained with previous research, namely: a diagram assessment tool to compute differences between graphs; an IDE inspired web learning environment for computer science languages; and an extensible web diagram editor. Kora has several features to enhance feedback: it distinguishes syntactic and semantic errors, providing specialized feedback in each case; it provides progressive feedback disclosure, controlling the quality and quantity shown to each student after a submission; when possible, it integrates feedback within the diagram editor showing actual nodes and edges on the editor itself.
Cite as

Helder Correia, José Paulo Leal, and José Carlos Paiva. Enhancing Feedback to Students in Automated Diagram Assessment. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 11:1-11:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{correia_et_al:OASIcs.SLATE.2017.11,
  author =	{Correia, Helder and Leal, Jos\'{e} Paulo and Paiva, Jos\'{e} Carlos},
  title =	{{Enhancing Feedback to Students in Automated Diagram Assessment}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  pages =	{11:1--11:8},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.11},
  URN =		{urn:nbn:de:0030-drops-79577},
  doi =		{10.4230/OASIcs.SLATE.2017.11},
  annote =	{Keywords: automated assessment, diagram assessment, feedback generation,language environments, e-learning}
}
Document
DOI: 10.4230/OASIcs.SLATE.2017.17
An Emotional Word Analyzer for Portuguese

Authors: Maria Inês Maia and José Paulo Leal

Published in: OASIcs, Volume 56, 6th Symposium on Languages, Applications and Technologies (SLATE 2017)

Abstract
The analysis of sentiments, emotions and opinions in texts is increasingly important in the current digital world. The existing lexicons with emotional annotations for the Portuguese language are oriented to polarities, classifying words as positive, negative or neutral. To identify the emotional load intended by the author it is necessary also to categorize the emotions expressed by individual words. EmoSpell is an extension of a morphological analyzer with semantic annotations of the emotional value of words. It uses Jspell as the morphological analyzer and a new dictionary with emotional annotations. This dictionary incorporates the lexical base EMOTAIX.PT, which classifies words based on three different levels of emotions - global, specific and intermediate. This paper describes the generation of the EmoSpell dictionary using three sources, the Jspell Portuguese dictionary and the lexical bases EMOTAIX.PT and SentiLex-PT. Also, this paper details the web application and web service that exploit this dictionary. It presents also a validation of the proposed approach using a corpus of student texts with different emotional loads. The validation compares the analyses provided by EmoSpell with the mentioned emotional lexical bases on the ability to recognize emotional words and extract the dominant emotion from a text.
Cite as

Maria Inês Maia and José Paulo Leal. An Emotional Word Analyzer for Portuguese. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 17:1-17:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{maia_et_al:OASIcs.SLATE.2017.17,
  author =	{Maia, Maria In\^{e}s and Leal, Jos\'{e} Paulo},
  title =	{{An Emotional Word Analyzer for Portuguese}},
  booktitle =	{6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
  pages =	{17:1--17:14},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-056-9},
  ISSN =	{2190-6807},
  year =	{2017},
  volume =	{56},
  editor =	{Queir\'{o}s, Ricardo and Pinto, M\'{a}rio and Sim\~{o}es, Alberto and Leal, Jos\'{e} Paulo and Varanda, Maria Jo\~{a}o},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.17},
  URN =		{urn:nbn:de:0030-drops-79585},
  doi =		{10.4230/OASIcs.SLATE.2017.17},
  annote =	{Keywords: Sentiment Analysis, Opinion Mining, Emotion API}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2016
OASIcs, Volume 51, SLATE'16, Complete Volume

Authors: Marjan Mernik, José Paulo Leal, and Hugo Gonçalo Oliveira

Published in: OASIcs, Volume 51, 5th Symposium on Languages, Applications and Technologies (SLATE'16) (2016)

Abstract
OASIcs, Volume 51, SLATE'16, Complete Volume
Cite as

5th Symposium on Languages, Applications and Technologies (SLATE'16). Open Access Series in Informatics (OASIcs), Volume 51, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@Proceedings{mernik_et_al:OASIcs.SLATE.2016,
  title =	{{OASIcs, Volume 51, SLATE'16, Complete Volume}},
  booktitle =	{5th Symposium on Languages, Applications and Technologies (SLATE'16)},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-006-4},
  ISSN =	{2190-6807},
  year =	{2016},
  volume =	{51},
  editor =	{Mernik, Marjan and Leal, Jos\'{e} Paulo and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2016},
  URN =		{urn:nbn:de:0030-drops-60617},
  doi =		{10.4230/OASIcs.SLATE.2016},
  annote =	{Keywords: Natural Language Processing, Programming Languages}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2016.0
Front Matter, Table of Contents, Preface, Program Committee, List of Authors

Authors: Marjan Mernik, José Paulo Leal, and Hugo Gonçalo Oliveira

Published in: OASIcs, Volume 51, 5th Symposium on Languages, Applications and Technologies (SLATE'16) (2016)

Abstract
Front Matter, Table of Contents, Preface, Program Committee, List of Authors
Cite as

5th Symposium on Languages, Applications and Technologies (SLATE'16). Open Access Series in Informatics (OASIcs), Volume 51, pp. 0:i-0:xiv, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@InProceedings{mernik_et_al:OASIcs.SLATE.2016.0,
  author =	{Mernik, Marjan and Leal, Jos\'{e} Paulo and Gon\c{c}alo Oliveira, Hugo},
  title =	{{Front Matter, Table of Contents, Preface, Program Committee, List of Authors}},
  booktitle =	{5th Symposium on Languages, Applications and Technologies (SLATE'16)},
  pages =	{0:i--0:xiv},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-006-4},
  ISSN =	{2190-6807},
  year =	{2016},
  volume =	{51},
  editor =	{Mernik, Marjan and Leal, Jos\'{e} Paulo and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2016.0},
  URN =		{urn:nbn:de:0030-drops-60052},
  doi =		{10.4230/OASIcs.SLATE.2016.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Program Committee, List of Authors}
}
Document
DOI: 10.4230/OASIcs.SLATE.2016.4
Comparing and Benchmarking Semantic Measures Using SMComp

Authors: Teresa Costa and José Paulo Leal

Published in: OASIcs, Volume 51, 5th Symposium on Languages, Applications and Technologies (SLATE'16) (2016)

Abstract
The goal of the semantic measures is to compare pairs of concepts, words, sentences or named entities. Their categorization depends on what they measure. If a measure only considers taxonomy relationships is a similarity measure; if it considers all type of relationships it is a relatedness measure. The evaluation process of these measures usually relies on semantic gold standards. These datasets, with several pairs of words with a rating assigned by persons, are used to assess how well a semantic measure performs. There are a few frameworks that provide tools to compute and analyze several well-known measures. This paper presents a novel tool - SMComp - a testbed designed for path-based semantic measures. At its current state, it is a domain-specific tool using three different versions of WordNet. SMComp has two views: one to compute semantic measures of a pair of words and another to assess a semantic measure using a dataset. On the first view, it offers several measures described in the literature as well as the possibility of creating a new measure, by introducing Java code snippets on the GUI. The other view offers a large set of semantic benchmarks to use in the assessment process. It also offers the possibility of uploading a custom dataset to be used in the assessment.
Cite as

Teresa Costa and José Paulo Leal. Comparing and Benchmarking Semantic Measures Using SMComp. In 5th Symposium on Languages, Applications and Technologies (SLATE'16). Open Access Series in Informatics (OASIcs), Volume 51, pp. 4:1-4:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@InProceedings{costa_et_al:OASIcs.SLATE.2016.4,
  author =	{Costa, Teresa and Leal, Jos\'{e} Paulo},
  title =	{{Comparing and Benchmarking Semantic Measures Using SMComp}},
  booktitle =	{5th Symposium on Languages, Applications and Technologies (SLATE'16)},
  pages =	{4:1--4:13},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-006-4},
  ISSN =	{2190-6807},
  year =	{2016},
  volume =	{51},
  editor =	{Mernik, Marjan and Leal, Jos\'{e} Paulo and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2016.4},
  URN =		{urn:nbn:de:0030-drops-60090},
  doi =		{10.4230/OASIcs.SLATE.2016.4},
  annote =	{Keywords: Semantic similarity, semantic relatedness, testbed, web application}
}
Document
DOI: 10.4230/OASIcs.SLATE.2016.12
Eshu: An Extensible Web Editor for Diagrammatic Languages

Authors: José Paulo Leal, Helder Correia, and José Carlos Paiva

Published in: OASIcs, Volume 51, 5th Symposium on Languages, Applications and Technologies (SLATE'16) (2016)

Abstract
The corner stone of a language development environment is an editor. For programming languages, several code editors are readily available to be integrated in Web applications. However, only few editors exist for diagrammatic languages. Eshu is an extensible diagram editor, embeddable in Web applications that require diagram interaction, such as modeling tools or e-learning environments. Eshu is a JavaScript library with an API that supports its integration with other components, including importing/exporting diagrams in JSON. Eshu was already integrated in a pedagogical environment with automated diagram assessment, configured for extended entity-relationship diagrams, that served as basis for an usability evaluation.
Cite as

José Paulo Leal, Helder Correia, and José Carlos Paiva. Eshu: An Extensible Web Editor for Diagrammatic Languages. In 5th Symposium on Languages, Applications and Technologies (SLATE'16). Open Access Series in Informatics (OASIcs), Volume 51, pp. 12:1-12:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@InProceedings{leal_et_al:OASIcs.SLATE.2016.12,
  author =	{Leal, Jos\'{e} Paulo and Correia, Helder and Paiva, Jos\'{e} Carlos},
  title =	{{Eshu: An Extensible Web Editor for Diagrammatic Languages}},
  booktitle =	{5th Symposium on Languages, Applications and Technologies (SLATE'16)},
  pages =	{12:1--12:13},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-006-4},
  ISSN =	{2190-6807},
  year =	{2016},
  volume =	{51},
  editor =	{Mernik, Marjan and Leal, Jos\'{e} Paulo and Gon\c{c}alo Oliveira, Hugo},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2016.12},
  URN =		{urn:nbn:de:0030-drops-60178},
  doi =		{10.4230/OASIcs.SLATE.2016.12},
  annote =	{Keywords: Diagram assessment, language environments, automated assessment, e-learning}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2014
OASIcs, Volume 38, SLATE'14, Complete Volume

Authors: Maria João Varanda Pereira, José Paulo Leal, and Alberto Simões

Published in: OASIcs, Volume 38, 3rd Symposium on Languages, Applications and Technologies (2014)

Abstract
OASIcs, Volume 38, SLATE'14, Complete Volume
Cite as

3rd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 38, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@Proceedings{pereira_et_al:OASIcs.SLATE.2014,
  title =	{{OASIcs, Volume 38, SLATE'14, Complete Volume}},
  booktitle =	{3rd Symposium on Languages, Applications and Technologies},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-68-2},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{38},
  editor =	{Pereira, Maria Jo\~{a}o Varanda and Leal, Jos\'{e} Paulo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2014},
  URN =		{urn:nbn:de:0030-drops-45905},
  doi =		{10.4230/OASIcs.SLATE.2014},
  annote =	{Keywords: Programming Languages, Interoperability, Natural Language Processing}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2014.i
Frontmatter, Table of Contents, Preface, Conference Organization

Authors: Maria João Varanda Pereira, José Paulo Leal, and Alberto Simões

Published in: OASIcs, Volume 38, 3rd Symposium on Languages, Applications and Technologies (2014)

Abstract
Frontmatter, Table of Contents, Preface, Conference Organization
Cite as

3rd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 38, pp. i-xvi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@InProceedings{pereira_et_al:OASIcs.SLATE.2014.i,
  author =	{Pereira, Maria Jo\~{a}o Varanda and Leal, Jos\'{e} Paulo and Sim\~{o}es, Alberto},
  title =	{{Frontmatter, Table of Contents, Preface, Conference Organization}},
  booktitle =	{3rd Symposium on Languages, Applications and Technologies},
  pages =	{i--xvi},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-68-2},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{38},
  editor =	{Pereira, Maria Jo\~{a}o Varanda and Leal, Jos\'{e} Paulo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2014.i},
  URN =		{urn:nbn:de:0030-drops-45537},
  doi =		{10.4230/OASIcs.SLATE.2014.i},
  annote =	{Keywords: Frontmatter, Table of Contents, Preface, Conference Organization}
}
Document
DOI: 10.4230/OASIcs.SLATE.2014.201
Multiscale Parameter Tuning of a Semantic Relatedness Algorithm

Authors: José Paulo Leal and Teresa Costa

Published in: OASIcs, Volume 38, 3rd Symposium on Languages, Applications and Technologies (2014)

Abstract
The research presented in this paper builds on previous work that lead to the definition of a family of semantic relatedness algorithms that compute a proximity given as input a pair of concept labels. The algorithms depends on a semantic graph, provided as RDF data, and on a particular set of weights assigned to the properties of RDF statements (types of arcs in the RDF graph). The current research objective is to automatically tune the weights for a given graph in order to increase the proximity quality. The quality of a semantic relatedness method is usually measured against a benchmark data set. The results produced by the method are compared with those on the benchmark using the Spearman's rank coefficient. This methodology works the other way round and uses this coefficient to tune the proximity weights. The tuning process is controlled by a genetic algorithm using the Spearman's rank coefficient as the fitness function. The genetic algorithm has its own set of parameters which also need to be tuned. Bootstrapping is based on a statistical method for generating samples that is used in this methodology to enable a large number of repetitions of the genetic algorithm, exploring the results of alternative parameter settings. This approach raises several technical challenges due to its computational complexity. This paper provides details on the techniques used to speedup this process. The proposed approach was validated with the WordNet 2.0 and the WordSim-353 data set. Several ranges of parameters values were tested and the obtained results are better than the state of the art methods for computing semantic relatedness using the WordNet 2.0, with the advantage of not requiring any domain knowledge of the ontological graph.
Cite as

José Paulo Leal and Teresa Costa. Multiscale Parameter Tuning of a Semantic Relatedness Algorithm. In 3rd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 38, pp. 201-213, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2014)

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@InProceedings{leal_et_al:OASIcs.SLATE.2014.201,
  author =	{Leal, Jos\'{e} Paulo and Costa, Teresa},
  title =	{{Multiscale Parameter Tuning of a Semantic Relatedness Algorithm}},
  booktitle =	{3rd Symposium on Languages, Applications and Technologies},
  pages =	{201--213},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-68-2},
  ISSN =	{2190-6807},
  year =	{2014},
  volume =	{38},
  editor =	{Pereira, Maria Jo\~{a}o Varanda and Leal, Jos\'{e} Paulo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2014.201},
  URN =		{urn:nbn:de:0030-drops-45702},
  doi =		{10.4230/OASIcs.SLATE.2014.201},
  annote =	{Keywords: semantic similarity, linked data, genetic algorithms, bootstrapping, WordNet}
}
Document
Complete Volume
DOI: 10.4230/OASIcs.SLATE.2013
OASIcs, Volume 29, SLATE'13, Complete Volume

Authors: José Paulo Leal, Ricardo Rocha, and Alberto Simões

Published in: OASIcs, Volume 29, 2nd Symposium on Languages, Applications and Technologies (2013)

Abstract
OASIcs, Volume 29, SLATE'13, Complete Volume
Cite as

2nd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 29, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@Proceedings{leal_et_al:OASIcs.SLATE.2013,
  title =	{{OASIcs, Volume 29, SLATE'13, Complete Volume}},
  booktitle =	{2nd Symposium on Languages, Applications and Technologies},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-52-1},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{29},
  editor =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2013},
  URN =		{urn:nbn:de:0030-drops-40805},
  doi =		{10.4230/OASIcs.SLATE.2013},
  annote =	{Keywords: Programming Languages; Interoperability; Natural Language Processing}
}
Document
Front Matter
DOI: 10.4230/OASIcs.SLATE.2013.i
Frontmatter

Authors: José Paulo Leal, Ricardo Rocha, and Alberto Simões

Published in: OASIcs, Volume 29, 2nd Symposium on Languages, Applications and Technologies (2013)

Abstract
The success of the humankind relies on our ability to communicate and transform the world. For ages we developed tools and technologies that allowed us to thrive and prosper. As we expanded to every corner of the planet we created languages that enabled us to communicate and record knowledge, even if they also become barriers to communication in themselves. Technology and language have always been interconnected. Technologies to record language gave birth to history and the written language allowed us to preserve knowledge, including knowledge on technologies. Technology reshaped language as books, radio shows or motion pictures made us aware of how other people communicate. But technologies and language were not completely blend together until computers and networks become our favourite tool to communicate and transform the world. The goal of the Symposium on Languages, Applications and Technologies (SLATE) is to be a forum to discuss the different ways in which language and technology interplay in computer science, and they are many. The symposium is divided into three main tracks, each one focusing a specific aspect of languages, from natural languages to compilers. * The HHL (Human-Human Languages) track is dedicated to the discussion of research projects and ideas involving natural language processing and their industrial application. * The HCL (Human-Computer Languages) track is where researchers, developers and educators exchange ideas and information on the latest academic or industrial work on language design, processing, assessment and applications. * The CCL (Computer-Computer Languages) track main goal is to provide a broad space for discussion about the XML markup language, examples of usage and associated technologies. SLATE follows the footsteps of two former conferences: CoRTA, the Conference on Compilers, Related Technologies and Applications; and XATA, the conference on XML, Applications and Applied Technologies, both with more than a decade of history. This volume contains the proceedings of the 2nd edition of SLATE, held in the Department of Computer Science, Faculty of Sciences, University of Porto, Portugal, during June 20-21, 2013. This year, SLATE received a total of 26 paper submissions for the three tracks. Each submission was reviewed by at least three Program Committee members, which included 55 researchers (counting sub-reviewers). At the end, 19 papers were selected for publication and presentation at the symposium, resulting in a 27% rejection rate. The set of accepted papers present a variety of contributions and were divided into the following five sessions for presentation at the symposium: * Software Development Tools, includes four articles on programming languages compilation and analysis; * XML and Applications, includes four articles on the usage of XML in different areas, ranging from the annotation of documents to its use on the semantic web; * Languages on Learning Environments, includes three articles that focus the automation on exercises generation and evaluation; * Domain Specific Languages, includes four articles on languages for specific languages, from music, robots or graphical user interfaces; * Natural Language Processing, includes four articles related to processing and teaching natural languages. In addition to these sessions, the program also included two keynote presentations, one on the PICAT system, a scalable logic-based language, by Neng-Fa Zhou (Brooklyn College, New York), and another on software languages and their history, by Jean-Marie Favre (University of Grenoble, France). The organizers of SLATE 2013 are in debt to many people without whom this event would never been possible. We wish to thank to our sponsors for making this event possible and to the EasyChair conference management system for simplifying our task. Thanks must go also to the authors of all submitted papers for their contribution and interest in the symposium and to the participants for making the event a meeting point for a fruitful exchange of ideas and feedback on recent developments. Finally, we want to express our gratitude to the Program Committee members and sub-reviewers, as the symposium would not have been possible without their dedicated time and knowledge in evaluating and ranking so many submissions from so many different topics. To all, our deepest thanks!
Cite as

2nd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 29, pp. i-xiv, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{leal_et_al:OASIcs.SLATE.2013.i,
  author =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  title =	{{Frontmatter}},
  booktitle =	{2nd Symposium on Languages, Applications and Technologies},
  pages =	{i--xiv},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-52-1},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{29},
  editor =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2013.i},
  URN =		{urn:nbn:de:0030-drops-40473},
  doi =		{10.4230/OASIcs.SLATE.2013.i},
  annote =	{Keywords: natural language processing, interoperabilty languages, compilers, languages}
}
Document
DOI: 10.4230/OASIcs.SLATE.2013.67
Publishing Linked Data with DaPress

Authors: Teresa Costa and José Paulo Leal

Published in: OASIcs, Volume 29, 2nd Symposium on Languages, Applications and Technologies (2013)

Abstract
The central idea of the Web of Data is to interlink the information available in the Web, most of which is actually stored in databases rather than in static HTML pages. Tools to convert relational data into semantic web formats and publish then as linked data are essential to fulfill the vision of a web of data available for automatic processing, as web content is currently available to humans. This paper presents DaPress, a simple tool to publish linked data on the Web, that maps a relational database to an RDF triplestore and creates a SPARQL access point. The paper reports the use of DaPress to publish the database of Authenticus, a system that automatically assigns publication authors to known Portuguese researchers and institutions.
Cite as

Teresa Costa and José Paulo Leal. Publishing Linked Data with DaPress. In 2nd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 29, pp. 67-81, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{costa_et_al:OASIcs.SLATE.2013.67,
  author =	{Costa, Teresa and Leal, Jos\'{e} Paulo},
  title =	{{Publishing Linked Data with DaPress}},
  booktitle =	{2nd Symposium on Languages, Applications and Technologies},
  pages =	{67--81},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-52-1},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{29},
  editor =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2013.67},
  URN =		{urn:nbn:de:0030-drops-40312},
  doi =		{10.4230/OASIcs.SLATE.2013.67},
  annote =	{Keywords: RDF, RDF Schema, Relational data; Semantic web}
}
Document
DOI: 10.4230/OASIcs.SLATE.2013.83
Seqins - A Sequencing Tool for Educational Resources

Authors: Ricardo Queirós, José Paulo Leal, and José Campos

Published in: OASIcs, Volume 29, 2nd Symposium on Languages, Applications and Technologies (2013)

Abstract
The teaching-learning process is increasingly focused on the combination of the paradigms "learning by viewing" and "learning by doing." In this context, educational resources, either expository or evaluative, play a pivotal role. Both types of resources are interdependent and their sequencing would create a richer educational experience to the end user. However, there is a lack of tools that support sequencing essentially due to the fact that existing specifications are complex. The Seqins is a sequencing tool of digital resources that has a fairly simple sequencing model. The tool communicates through the IMS LTI specification with a plethora of e-learning systems such as learning management systems, repositories, authoring and evaluation systems. In order to validate Seqins we integrate it in an e-learning Ensemble framework instance for the computer programming learning.
Cite as

Ricardo Queirós, José Paulo Leal, and José Campos. Seqins - A Sequencing Tool for Educational Resources. In 2nd Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 29, pp. 83-96, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InProceedings{queiros_et_al:OASIcs.SLATE.2013.83,
  author =	{Queir\'{o}s, Ricardo and Leal, Jos\'{e} Paulo and Campos, Jos\'{e}},
  title =	{{Seqins - A Sequencing Tool for Educational Resources}},
  booktitle =	{2nd Symposium on Languages, Applications and Technologies},
  pages =	{83--96},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-52-1},
  ISSN =	{2190-6807},
  year =	{2013},
  volume =	{29},
  editor =	{Leal, Jos\'{e} Paulo and Rocha, Ricardo and Sim\~{o}es, Alberto},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2013.83},
  URN =		{urn:nbn:de:0030-drops-40326},
  doi =		{10.4230/OASIcs.SLATE.2013.83},
  annote =	{Keywords: e-Learning, Learning management systems, Automatic evaluation}
}
Document
DOI: 10.4230/OASIcs.SLATE.2012.123
HandSpy - a system to manage experiments on cognitive processes in writing

Authors: Carlos Monteiro and José Paulo Leal

Published in: OASIcs, Volume 21, 1st Symposium on Languages, Applications and Technologies (2012)

Abstract
Experiments on cognitive processes require a detailed analysis of the contribution of many participants. In the case of cognitive processes in writing these experiments require special software tools to collect gestures performed with a pen or a stylus, and recorded with special hardware. These tools produce different kinds of data files in binary and proprietary formats that need to be managed on a workstation file system for further processing with generic tools, such as spreadsheets and statistical analysis software. The lack of common formats and open repositories hinders the possibility of distributing the work load among researchers within the research group, of re-processing the collected data with software developed by other research groups, and of sharing results with the rest of the cognitive process research community. This paper presents HandSpy, a collaborative environment for managing experiments in cognitive processes in writing. This environment was designed to cover all the stages of the experiment, from the definition of tasks to be performed by participants, to the synthesis of results. Collaboration in HandSpy is enabled by a rich web interface developed with the Google Web Toolkit. To decouple the environment from existing hardware devices for collecting written production, namely digitizing tablets and smart pens, HandSpy is based on the InkML standard, an XML data format for representing digital ink. This design choice shaped many of the features in HandSpy, such as the use of an XML database for managing application data and the use of XML transformations. XML transformations convert between persistent data representations used for storage and transient data representations required by the widgets on the user interface. This paper presents also an ongoing use case of HandSpy where this environment is being used to manage an experiment involving hundreds of primary schools participants that performed different tasks.
Cite as

Carlos Monteiro and José Paulo Leal. HandSpy - a system to manage experiments on cognitive processes in writing. In 1st Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 21, pp. 123-132, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{monteiro_et_al:OASIcs.SLATE.2012.123,
  author =	{Monteiro, Carlos and Leal, Jos\'{e} Paulo},
  title =	{{HandSpy - a system to manage experiments on cognitive processes in writing}},
  booktitle =	{1st Symposium on Languages, Applications and Technologies},
  pages =	{123--132},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-40-8},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{21},
  editor =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo and da Cruz, Daniela},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2012.123},
  URN =		{urn:nbn:de:0030-drops-35180},
  doi =		{10.4230/OASIcs.SLATE.2012.123},
  annote =	{Keywords: InkML, collaborative environment, XML data processing}
}
Document
DOI: 10.4230/OASIcs.SLATE.2012.133
Computing Semantic Relatedness using DBPedia

Authors: José Paulo Leal, Vânia Rodrigues, and Ricardo Queirós

Published in: OASIcs, Volume 21, 1st Symposium on Languages, Applications and Technologies (2012)

Abstract
Extracting the semantic relatedness of terms is an important topic in several areas, including data mining, information retrieval and web recommendation. This paper presents an approach for computing the semantic relatedness of terms using the knowledge base of DBpedia - a community effort to extract structured information from Wikipedia. Several approaches to extract semantic relatedness from Wikipedia using bag-of-words vector models are already available in the literature. The research presented in this paper explores a novel approach using paths on an ontological graph extracted from DBpedia. It is based on an algorithm for finding and weighting a collection of paths connecting concept nodes. This algorithm was implemented on a tool called Shakti that extract relevant ontological data for a given domain from DBpedia using its SPARQL endpoint. To validate the proposed approach Shakti was used to recommend web pages on a Portuguese social site related to alternative music and the results of that experiment are reported in this paper.
Cite as

José Paulo Leal, Vânia Rodrigues, and Ricardo Queirós. Computing Semantic Relatedness using DBPedia. In 1st Symposium on Languages, Applications and Technologies. Open Access Series in Informatics (OASIcs), Volume 21, pp. 133-147, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{leal_et_al:OASIcs.SLATE.2012.133,
  author =	{Leal, Jos\'{e} Paulo and Rodrigues, V\^{a}nia and Queir\'{o}s, Ricardo},
  title =	{{Computing Semantic Relatedness using DBPedia}},
  booktitle =	{1st Symposium on Languages, Applications and Technologies},
  pages =	{133--147},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-40-8},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{21},
  editor =	{Sim\~{o}es, Alberto and Queir\'{o}s, Ricardo and da Cruz, Daniela},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2012.133},
  URN =		{urn:nbn:de:0030-drops-35190},
  doi =		{10.4230/OASIcs.SLATE.2012.133},
  annote =	{Keywords: semantic similarity, processing wikipedia data, ontology generation, web recommendation}
}
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