Volume
OASIcs, Volume 56
6th Symposium on Languages, Applications and Technologies (SLATE 2017)
-
Part of:
Series:
Open Access Series in Informatics (OASIcs)
Conference: Symposium on Languages, Applications and Technologies (SLATE)
Event
SLATE 2017, June 26-27, 2017, Vila do Conde, PortugalEditors
Publication Details
- published at: 2017-10-04
- Publisher: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
- ISBN: 978-3-95977-056-9
- DBLP: db/conf/slate/slate2017
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Document
Complete Volume
OASIcs, Volume 56, SLATE'17, Complete Volume
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.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
Front Matter, Table of Contents, Preface, Conference Organization
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.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
Applying Attribute Grammars to Teach Linguistic Rules
Abstract
An attribute grammar is a very well known formalism to describe computer languages but it can also be successfully used to describe linguistic phenomena. Since natural languages can also be expressed in grammars it is natural to describe rules using the same formalism. Linguistic teachers of the University Complutense of Madrid started using attribute grammars but they lack a tool that helps them to specify linguistic rules in a friendly and natural way. Therefore we propose a domain specific language (NLSdsl) carefully designed for non-programmers that will be implemented on an AnTLR based system.
Cite as
Patrícia Amorim Barros, Maria João Varanda Pereira, and Pedro Rangel Henriques. Applying Attribute Grammars to Teach Linguistic Rules. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 1:1-1:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{barros_et_al:OASIcs.SLATE.2017.1,
author = {Barros, Patr{\'\i}cia Amorim and Varanda Pereira, Maria Jo\~{a}o and Henriques, Pedro Rangel},
title = {{Applying Attribute Grammars to Teach Linguistic Rules}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {1:1--1:14},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.1},
URN = {urn:nbn:de:0030-drops-79376},
doi = {10.4230/OASIcs.SLATE.2017.1},
annote = {Keywords: Attribute Grammars, DSL, Linguistics}
}
Document
Towards an Automated Test Bench Environment for Prolog Systems
Abstract
Software testing and benchmarking is a key component of the software development process. Nowadays, a good practice in big software projects is the Continuous Integration (CI) software development technique. The key idea of CI is to let developers integrate their work as they produce it, instead of doing the integration at the end of each software module. In this paper, we extend a previous work on a benchmark suite for the Yap Prolog system and we propose a fully automated test bench environment for Prolog systems, named Yet Another Prolog Test Bench Environment (YAPTBE), aimed to assist developers in the development and CI of Prolog systems. YAPTBE is based on a cloud computing architecture and relies on the Jenkins framework and in a set of new Jenkins plugins to manage the underneath infrastructure. We present the key design and implementation aspects of YAPTBE and show its most important features, such as its graphical user interface and the automated process that builds and runs Prolog systems and benchmarks.
Cite as
Ricardo Gonçalves, Miguel Areias, and Ricardo Rocha. Towards an Automated Test Bench Environment for Prolog Systems. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 2:1-2:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{goncalves_et_al:OASIcs.SLATE.2017.2,
author = {Gon\c{c}alves, Ricardo and Areias, Miguel and Rocha, Ricardo},
title = {{Towards an Automated Test Bench Environment for Prolog Systems}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {2:1--2:13},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.2},
URN = {urn:nbn:de:0030-drops-79385},
doi = {10.4230/OASIcs.SLATE.2017.2},
annote = {Keywords: Software Engineering, Program Correctness, Benchmarking, Prolog}
}
Document
Generating Method Documentation Using Concrete Values from Executions
Abstract
There exist multiple automated approaches of source code documentation generation. They often describe methods in abstract terms, using the words contained in the static source code or code excerpts from repositories. In this paper, we introduce DynamiDoc - a simple yet effective automated documentation approach based on dynamic analysis. It traces the program being executed and records string representations of concrete argument values, a return value, and a target object state before and after each method execution. Then for every concerned method, it generates documentation sentences containing examples, such as "When called on [3, 1.2] with element = 3, the object changed to [1.2]". A qualitative evaluation is performed, listing advantages and shortcomings of the approach.
Cite as
Matúš Sulír and Jaroslav Porubän. Generating Method Documentation Using Concrete Values from Executions. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 3:1-3:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{sulir_et_al:OASIcs.SLATE.2017.3,
author = {Sul{\'\i}r, Mat\'{u}\v{s} and Porub\"{a}n, Jaroslav},
title = {{Generating Method Documentation Using Concrete Values from Executions}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {3:1--3:13},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.3},
URN = {urn:nbn:de:0030-drops-79398},
doi = {10.4230/OASIcs.SLATE.2017.3},
annote = {Keywords: documentation generation, source code summarization, methods, dynamic analysis, examples}
}
Document
Towards Employing Informal Sketches and Diagrams in Software Development
Abstract
Programmers write notes and draw informal sketches and diagrams. We hypothesize about understandability and helpfulness of these sketches and their deeper inclusion into software development process. We are leveraging the fact that we have a collection of such sketches affiliated to a commercial software system. We have the opportunity to study sketches that were created naturally, not intentionally for research purposes. The oldest sketch was created a year and a half ago and the most recent one a half a year ago. Our initial experiment shows that these sketches are pretty understandable even after some time - even for another person.
Cite as
Milan Jancár and Jaroslav Porubän. Towards Employing Informal Sketches and Diagrams in Software Development. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 4:1-4:10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{jancar_et_al:OASIcs.SLATE.2017.4,
author = {Janc\'{a}r, Milan and Porub\"{a}n, Jaroslav},
title = {{Towards Employing Informal Sketches and Diagrams in Software Development}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {4:1--4:10},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.4},
URN = {urn:nbn:de:0030-drops-79596},
doi = {10.4230/OASIcs.SLATE.2017.4},
annote = {Keywords: sketches, diagrams, design, maintenance, comprehension}
}
Document
Modelling Contiki-Based IoT Systems
Abstract
In this paper, we investigate how model-driven engineering (MDE) of Internet of Things (IoT) systems and Wireless-Sensor Networks (WSN) can be supported and introduce a domain-specific metamodel for modeling such systems based on the well-known Contiki operating system. The unique lightweight thread structure of Contiki makes it more preferable in the implementation of new IoT systems instead of many other existing platforms. Although some MDE approaches exist for IoT systems and WSNs, currently there is no study which addresses the modelling according to the specifications of Contiki platform. The work presented in this paper aims at filling this gap and covers the development of both a modeling language syntax and a graphical modeling environment for the MDE of IoTs according to event-driven mechanism and protothread architecture of Contiki. Use of the proposed modeling language is demonstrated with including the development of an IoT system for forest fire detection.
Cite as
Caglar Durmaz, Moharram Challenger, Orhan Dagdeviren, and Geylani Kardas. Modelling Contiki-Based IoT Systems. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 5:1-5:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{durmaz_et_al:OASIcs.SLATE.2017.5,
author = {Durmaz, Caglar and Challenger, Moharram and Dagdeviren, Orhan and Kardas, Geylani},
title = {{Modelling Contiki-Based IoT Systems}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {5:1--5:13},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.5},
URN = {urn:nbn:de:0030-drops-79401},
doi = {10.4230/OASIcs.SLATE.2017.5},
annote = {Keywords: Domain-specific Modelling, Metamodel, Model-driven Engineering, Internet of Things, Wireless Sensor Networks, Embedded Software, Contiki Operating Sys}
}
Document
Exercise Solution Check Specification Language for Interactive Programming Learning Environments
Abstract
Automatic checking of the correctness of students' solutions of programming exercises for generating appropriate feedback is a necessary component of interactive programming learning environments. Although there are multiple ways of specifying such a check, ranging from mere string patterns to code written in general-purpose programming language, they all have their deficiencies, with the check specification being too verbose, too complicated, difficult to reuse, or very limited in its expressive capabilities. In this paper, a new language designed especially for this purpose is described. It provides both extension and replacement for RegEx-based pattern specification so that checks typical for programming exercise verification can be expressed in a concise and highly-readable manner.
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Jakub Swacha. Exercise Solution Check Specification Language for Interactive Programming Learning Environments. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 6:1-6:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{swacha:OASIcs.SLATE.2017.6,
author = {Swacha, Jakub},
title = {{Exercise Solution Check Specification Language for Interactive Programming Learning Environments}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {6:1--6:8},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.6},
URN = {urn:nbn:de:0030-drops-79413},
doi = {10.4230/OASIcs.SLATE.2017.6},
annote = {Keywords: automatic programming exercise solution verification, source code pattern specification, RegEx extension, RegEx alternative}
}
Document
Visualizing the Evaluation of Functional Programs for Debugging
Abstract
In this position paper, we present a prototype of a visualizer for functional programs. Such programs, whose evaluation model is the reduction of an expression to a value through repeated application of rewriting rules, and which tend to make little or no use of mutable state, are amenable to visualization in the same fashion as simple mathematical expressions, with which every schoolchild is familiar. We show how such visualizations may be produced for the strict functional language OCaml, by direct interpretation of the abstract syntax tree and appropriate pretty-printing. We describe (and begin to address) the challenges of presenting such program traces in limited space and of identifying their essential elements, so that our methods will one day be practical for more than toy programs. We consider the problems posed by the parts of modern functional programming which are not purely functional such as mutable state, input/output and exceptions. We describe initial work on the use of such visualizations to address the problem of program debugging, which is our ultimate aim.
Cite as
John Whitington and Tom Ridge. Visualizing the Evaluation of Functional Programs for Debugging. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 7:1-7:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{whitington_et_al:OASIcs.SLATE.2017.7,
author = {Whitington, John and Ridge, Tom},
title = {{Visualizing the Evaluation of Functional Programs for Debugging}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {7:1--7:9},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.7},
URN = {urn:nbn:de:0030-drops-79420},
doi = {10.4230/OASIcs.SLATE.2017.7},
annote = {Keywords: Debugging, Functional, Visualization, OCaml}
}
Document
A Survey on CSS Preprocessors
Abstract
In the Web realm, the adoption of Cascading Style Sheets (CSS) is unanimous, being widely used for styling web documents. Despite their intensive use, this W3C specification was written for web designers with limit programming background. Thus, it lack several programming constructs, such as variables, conditional and repetitive blocks, and functions. This absence affects negatively code reuse, and consequently, the maintenance of the styling code. In the last decade, several languages (e.g. Sass, Less) appeared to extend CSS, defined as CSS preprocessors, with the ultimate goal to bring those missing constructs and to foster stylesheets structured programming. The paper provides an introductory survey on CSS Preprocessors. It gathers information on a specific set of preprocessors, categorizes them and compares their features regarding a set of predefined criteria such as: maturity, coverage and performance.
Cite as
Ricardo Queirós. A Survey on CSS Preprocessors. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 8:1-8:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{queiros:OASIcs.SLATE.2017.8,
author = {Queir\'{o}s, Ricardo},
title = {{A Survey on CSS Preprocessors}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {8:1--8:12},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.8},
URN = {urn:nbn:de:0030-drops-79439},
doi = {10.4230/OASIcs.SLATE.2017.8},
annote = {Keywords: CSS, Preprocessors, Web formatting}
}
Document
XML Parsing in JavaScript
Abstract
With Web 2.0 the dynamic web got to a reality. With it, some new concepts arived, like the use of asynchronous calls to receive missing data to render a website, instead of requesting a full new page to the server. For this task, and in the recent years, developers use mostly the JSON format for the interchange of data, than XML. Nevertheless, XML is more suitable for some kind of data interchange but, and even if the web is based in SGML/XML standards, processing XML using directly JavaScript is tricky.
In this document, a set of different approaches to parse XML with JavaScript will be described, and a new module, based on a set of translation functions, will be presented. At the end, a set of experiments will be discussed, trying to evaluate how versatile the proposed approach is.
Cite as
Alberto Simões. XML Parsing in JavaScript. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 9:1-9:10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{simoes:OASIcs.SLATE.2017.9,
author = {Sim\~{o}es, Alberto},
title = {{XML Parsing in JavaScript}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {9:1--9:10},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.9},
URN = {urn:nbn:de:0030-drops-79442},
doi = {10.4230/OASIcs.SLATE.2017.9},
annote = {Keywords: XML, JSON, Parsing, JavaScript}
}
Document
Indexing XML Documents Using Tree Paths Automaton
Abstract
An XML document can be viewed as a tree in a natural way. Processing tree data structures usually requires a pushdown automaton as a model of computation. Therefore, it is interesting that a finite automaton can be used to solve the XML index problem. In this paper, we attempt to support a significant fragment of XPath queries which may use any combination of child (i.e., /) and descendant-or-self (i.e., //) axis. A systematic approach to the construction of such XML index, which is a finite automaton called Tree Paths Automaton, is presented. Given an XML tree model T, the tree is first of all preprocessed by means of its linear fragments called string paths. Since only path queries are considered, the branching structure of the XML tree model can be omitted. For individual string paths, smaller Tree Paths Automata are built, and they are afterwards combined to form the index. The searching phase uses the index, reads an input query Q of size m, and computes the list of positions of all occurrences of Q in the tree T. The searching is performed in time O(m) and does not depend on the size of the XML document. Although the number of queries is clearly exponential in the number of nodes of the XML tree model, the size of the index seems to be, according to our experimental results, usually only about 2.5 times larger than the size of the original document.
Cite as
Eliška Šestáková and Jan Janoušek. Indexing XML Documents Using Tree Paths Automaton. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 10:1-10:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{sestakova_et_al:OASIcs.SLATE.2017.10,
author = {\v{S}est\'{a}kov\'{a}, Eli\v{s}ka and Janou\v{s}ek, Jan},
title = {{Indexing XML Documents Using Tree Paths Automaton}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {10:1--10:14},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.10},
URN = {urn:nbn:de:0030-drops-79457},
doi = {10.4230/OASIcs.SLATE.2017.10},
annote = {Keywords: XML, XPath, index, tree, finite automaton}
}
Document
Enhancing Feedback to Students in Automated Diagram Assessment
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.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
A REST Service for Poetry Generation
Abstract
This paper describes a REST API developed on the top of PoeTryMe, a poetry generation platform. This API exposes several functionalities, from the production of full poems, to narrower tasks, having in mind their utility for poetry composition, including the acquisition of well-formed lines, or semantically-related words, possibly constrained by the number of syllables, rhyme, or polarity. Examples that illustrate the endpoints and what they can be used for are also revealed.
Cite as
Hugo Gonçalo Oliveira. A REST Service for Poetry Generation. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 12:1-12:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{goncalooliveira:OASIcs.SLATE.2017.12,
author = {Gon\c{c}alo Oliveira, Hugo},
title = {{A REST Service for Poetry Generation}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {12:1--12:8},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.12},
URN = {urn:nbn:de:0030-drops-79468},
doi = {10.4230/OASIcs.SLATE.2017.12},
annote = {Keywords: REST, creative web services, poetry generation, computational creativity}
}
Document
SOS - Simple Orchestration of Services
Abstract
Nowadays, we continue to write redundant code which can often be reused from the Web. Reusing programming tasks is beneficial since it speeds up the process of creating applications and reduces the errors related with the task creation from scratch. At the same time, the demands of our applications are increasing, leading to a simple problem having to be solved through several tasks. With the advent of the cloud, there are countless Web services that proliferate on the Web. One solution for developers is to use these Web Services. However, the process of mastering and coordinating all these services manually is time-consuming and error-prone.
This paper presents SOS, a Simple Orchestration of Services. The ultimate goal of this tool is to act as a service composer while promoting the separation of concerns for two typical actors in this realm: the developer and the business analyst. The developer must define a service as a SOS task based on a JSON schema and submit it in a Web specialized editor. The business analyst uses the SOS editor, in an interactive way, to chain the required tasks to solve a specific problem. Then, the developer, uses a a simple client API - a SOS engine wrapper - to load a SOS manifest and to iterate over all tasks, without the need to dominate any bureaucratic aspects related with HTTP clients and messages. As a case study, several tasks are instantiated and aggregated in order to generate a composite service for a mobile app whose goal is to give an translated description of a picture taken with a mobile phone.
Cite as
Ricardo Queirós and Alberto Simões. SOS - Simple Orchestration of Services. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 13:1-13:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{queiros_et_al:OASIcs.SLATE.2017.13,
author = {Queir\'{o}s, Ricardo and Sim\~{o}es, Alberto},
title = {{SOS - Simple Orchestration of Services}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {13:1--13:8},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.13},
URN = {urn:nbn:de:0030-drops-79472},
doi = {10.4230/OASIcs.SLATE.2017.13},
annote = {Keywords: Web services, Service Composition, Orchestration}
}
Document
Visualization of Ontology Evolution using OntoDiffGraph
Abstract
Ontologies evolve with the passing of time due to improvements, corrections or changes in requirements that need to be made. In this paper we describe a thesis work aiming at the creation of a visualization technique with the objective of allowing the viewer to easily identify changes made in an ontology. With the use of a specification based on the already existing Visual Notation for OWL Ontologies (VOWL) it is possible to display the differences that exist between two versions of an ontology. The proposed approach will be implemented in an application, that is also discussed in the paper.
Cite as
André Lara, Pedro Rangel Henriques, and Alda Lopes Gançarski. Visualization of Ontology Evolution using OntoDiffGraph. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 14:1-14:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{lara_et_al:OASIcs.SLATE.2017.14,
author = {Lara, Andr\'{e} and Henriques, Pedro Rangel and Gan\c{c}arski, Alda Lopes},
title = {{Visualization of Ontology Evolution using OntoDiffGraph}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {14:1--14:8},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.14},
URN = {urn:nbn:de:0030-drops-79480},
doi = {10.4230/OASIcs.SLATE.2017.14},
annote = {Keywords: Ontology Evolution, Ontology Visualization}
}
Document
Socii: A Tool to Analyze and Visualize Dynamic Social Networks
Abstract
Social media network analysis represents a major challenge for data scientists in every aspect, since the extraction all the way to the visualization. Despite representing a major technological challenge, social media data analysis has an additional motivation, that is the daily usage in every country across the planet, making Online Social Network (OSN) a universal tool for communication, such as radio or TV, but with the technological flavor of the 21st century. In the present article, we propose a system, called Socii, for social networks analysis and visualization, as part of an ongoing work under a master’s dissertation. This system overlaps two main scientific fields, sociology (more concisely social networks) and computer science. Socii aims at helping OSNs users to know and understand social structures through a user friendly interface. The system relies in four main principles, namely simplicity, accessibility, OSNs integration and contextual analysis.
Cite as
Jorge Daniel Caldas, Alda Lopes Gançarski, and Pedro Rangel Henriques. Socii: A Tool to Analyze and Visualize Dynamic Social Networks. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 15:1-15:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{caldas_et_al:OASIcs.SLATE.2017.15,
author = {Caldas, Jorge Daniel and Gan\c{c}arski, Alda Lopes and Henriques, Pedro Rangel},
title = {{Socii: A Tool to Analyze and Visualize Dynamic Social Networks}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {15:1--15:7},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.15},
URN = {urn:nbn:de:0030-drops-79492},
doi = {10.4230/OASIcs.SLATE.2017.15},
annote = {Keywords: Social Networks, Online Social Networks, Social Network Analysis, Data Analytics}
}
Document
Comparing and Combining Portuguese Lexical-Semantic Knowledge Bases
Abstract
There are currently several lexical-semantic knowledge bases (LKBs) for Portuguese, developed by different teams and following different approaches. In this paper, the open Portuguese LKBs are briefly analysed, with a focus on size and overlapping contents, and new LKBs are created from their redundant information. Existing and new LKBs are then exploited in the performance of semantic analysis tasks and their performance is compared. Results confirm that, instead of selecting a single LKB to use, it is worth combining all the open Portuguese LKBs.
Cite as
Hugo Gonçalo Oliveira. Comparing and Combining Portuguese Lexical-Semantic Knowledge Bases. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 16:1-16:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{goncalooliveira:OASIcs.SLATE.2017.16,
author = {Gon\c{c}alo Oliveira, Hugo},
title = {{Comparing and Combining Portuguese Lexical-Semantic Knowledge Bases}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {16:1--16:15},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.16},
URN = {urn:nbn:de:0030-drops-79505},
doi = {10.4230/OASIcs.SLATE.2017.16},
annote = {Keywords: Lexical Knowledge Bases, Portuguese, WordNet, Redundancy, Semantic Similarity}
}
Document
An Emotional Word Analyzer for Portuguese
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.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
Information Extraction for Event Ranking
Abstract
Search engines are evolving towards richer and stronger semantic approaches, focusing on entity-oriented tasks where knowledge bases have become fundamental. In order to support semantic search, search engines are increasingly reliant on robust information extraction systems. In fact, most modern search engines are already highly dependent on a well-curated knowledge base. Nevertheless, they still lack the ability to effectively and automatically take advantage of multiple heterogeneous data sources. Central tasks include harnessing the information locked within textual content by linking mentioned entities to a knowledge base, or the integration of multiple knowledge bases to answer natural language questions. Combining text and knowledge bases is frequently used to improve search results, but it can also be used for the query-independent ranking of entities like events. In this work, we present a complete information extraction pipeline for the Portuguese language, covering all stages from data acquisition to knowledge base population. We also describe a practical application of the automatically extracted information, to support the ranking of upcoming events displayed in the landing page of an institutional search engine, where space is limited to only three relevant events. We manually annotate a dataset of news, covering event announcements from multiple faculties and organic units of the institution. We then use it to train and evaluate the named entity recognition module of the pipeline. We rank events by taking advantage of identified entities, as well as partOf relations, in order to compute an entity popularity score, as well as an entity click score based on implicit feedback from clicks from the institutional search engine. We then combine these two scores with the number of days to the event, obtaining a final ranking for the three most relevant upcoming events.
Cite as
José Devezas and Sérgio Nunes. Information Extraction for Event Ranking. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 18:1-18:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{devezas_et_al:OASIcs.SLATE.2017.18,
author = {Devezas, Jos\'{e} and Nunes, S\'{e}rgio},
title = {{Information Extraction for Event Ranking}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {18:1--18:14},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.18},
URN = {urn:nbn:de:0030-drops-79515},
doi = {10.4230/OASIcs.SLATE.2017.18},
annote = {Keywords: Named Entity Recognition, Relation Extraction, Knowledge Base Population, Entity-Based Ranking, Academic Events}
}
Document
A Method for Proper Noun Extraction in Kurdish
Abstract
This paper suggests a method for proper noun identification in Kurdish texts. Kurdish proper nouns are not capitalized and they also assume other part-of-speech roles, which leads to a broad ambiguity that should be addressed in Kurdish proper noun recognition applications. Kurdish is also among less-resourced languages. We developed an application based on an architecture which includes a number of name lists, a set of rules, and a set of processes that recognizes Kurdish person names. This can help the study of Information Retrieval (IR) in Kurdish to advance and can also be used in Kurdish machine translation. We conducted several experiments which showed that the precision of the method is more than 95%, the recall is between 40% to 80%, and the F-measure is close to 60% to more than 80%. The reason for the low recall precision was because our name lists were not exhaustive enough to cover the vast majority of the Kurdish names.
Cite as
Hossein Hassani. A Method for Proper Noun Extraction in Kurdish. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 19:1-19:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{hassani:OASIcs.SLATE.2017.19,
author = {Hassani, Hossein},
title = {{A Method for Proper Noun Extraction in Kurdish}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {19:1--19:13},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.19},
URN = {urn:nbn:de:0030-drops-79525},
doi = {10.4230/OASIcs.SLATE.2017.19},
annote = {Keywords: Proper Noun Recognition, Named Entity Recognition, Information Extraction, Natural Language Processing, Kurdish}
}
Document
Natural Transmission of Information Extraction Results to End-Users - A Proof-of-Concept Using Data-to-Text
Abstract
Information Extraction from natural texts has a great potential in areas such as Tourism and can be of great assistance in transforming customers' comments in valuable information for Tourism operators, governments and customers. After extraction, information needs to be efficiently transmitted to end-users in a natural way. Systems should not, in general, send extracted information directly to end-users, such as hotel managers, as it can be difficult to read.
Naturally, humans transmit and encode information using natural languages, such as Portuguese. The problem arising from the need of efficient and natural transmission of the information to end-user is how to encode it. The use of natural language generation (NLG) is a possible solution, for producing sentences, and, with them, texts.
In this paper we address this, with a data-to-text system, a derivation of formal NLG systems that use data as input. The proposed system uses an aligned corpus, which was defined, collected and processed, in about approximately 3 weeks of work. To build the language model were used three different in-domain and out-of-domain corpora. The effects of this approach were evaluated, and results are presented.
Automatic metrics, BLEU and Meteor, were used to evaluate the different systems, comparing their values with similar systems. Results show that expanding the corpus has a major positive effect in BLEU and Meteor scores and use of additional corpora (in-domain and out-of-domain) in training language model does not result in significantly different performance.
The scores obtained, combined with their comparison with other systems performance and informal evaluation by humans of the sentences produced, give additional support for the capabilities of the translation based approach for fast development of data-to-text for new domains.
Cite as
José Casimiro Pereira, António J. S. Teixeira, Mário Rodrigues, Pedro Miguel, and Joaquim Sousa Pinto. Natural Transmission of Information Extraction Results to End-Users - A Proof-of-Concept Using Data-to-Text. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 20:1-20:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{pereira_et_al:OASIcs.SLATE.2017.20,
author = {Pereira, Jos\'{e} Casimiro and Teixeira, Ant\'{o}nio J. S. and Rodrigues, M\'{a}rio and Miguel, Pedro and Pinto, Joaquim Sousa},
title = {{Natural Transmission of Information Extraction Results to End-Users - A Proof-of-Concept Using Data-to-Text}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {20:1--20:14},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.20},
URN = {urn:nbn:de:0030-drops-79530},
doi = {10.4230/OASIcs.SLATE.2017.20},
annote = {Keywords: Data-to-Text, Natural Language Generation, Automatic Translation, opinions, Tourism, Portuguese}
}
Document
Adapting Speech Recognition in Augmented Reality for Mobile Devices in Outdoor Environments
Abstract
This paper describes the process of integrating automatic speech recognition (ASR) into a mobile application and explores the benefits and challenges of integrating speech with augmented reality (AR) in outdoor environments. The augmented reality allows end-users to interact with the information displayed and perform tasks, while increasing the user’s perception about the real world by adding virtual information to it. Speech is the most natural way of communication: it allows hands-free interaction and may allow end-users to quickly and easily access a range of features available. Speech recognition technology is often available in most of the current mobile devices, but it often uses Internet to receive the corresponding transcript from remote servers, e.g., Google speech recognition. However, in some outdoor environments, Internet is not always available or may be offered at poor quality. We integrated an off-line automatic speech recognition module into an AR application for outdoor usage that does not require Internet. Currently, speech interaction is used within the application to access five different features, namely: to take a photo, shoot a film, communicate, messaging related tasks, and to request information, either geographic, biometric, or climatic. The application makes available solutions to manage and interact with the mobile device, offering good usability. We have compared the online and off-line speech recognition systems in order to assess their adequacy to the tasks. Both systems were tested under different conditions, commonly found in outdoor environments, such as: Internet access quality, presence of noise, and distractions.
Cite as
Rui Pascoal, Ricardo Ribeiro, Fernando Batista, and Ana de Almeida. Adapting Speech Recognition in Augmented Reality for Mobile Devices in Outdoor Environments. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 21:1-21:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{pascoal_et_al:OASIcs.SLATE.2017.21,
author = {Pascoal, Rui and Ribeiro, Ricardo and Batista, Fernando and de Almeida, Ana},
title = {{Adapting Speech Recognition in Augmented Reality for Mobile Devices in Outdoor Environments}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {21:1--21:14},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.21},
URN = {urn:nbn:de:0030-drops-79541},
doi = {10.4230/OASIcs.SLATE.2017.21},
annote = {Keywords: Speech Recognition, Natural Language Processing, Sphinx for Mobile Devices, Augmented Reality, Outdoor Environments}
}
Document
Vocatives in Portuguese: Identification and Processing
Abstract
This paper describes the most salient linguistic aspects of vocative constructions in Portuguese, with special reference to its European variety. Next, the paper presents the strategy followed for implementing this linguistic knowledge in a computational grammar of Portuguese, developed for the natural language processing chain STRING and using the XIP rule-based parser. Very precise and detailed linguistic descriptions can be implemented in this way.
Cite as
Jorge Baptista and Nuno Mamede. Vocatives in Portuguese: Identification and Processing. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 22:1-22:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{baptista_et_al:OASIcs.SLATE.2017.22,
author = {Baptista, Jorge and Mamede, Nuno},
title = {{Vocatives in Portuguese: Identification and Processing}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {22:1--22:14},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.22},
URN = {urn:nbn:de:0030-drops-79555},
doi = {10.4230/OASIcs.SLATE.2017.22},
annote = {Keywords: Natural Language Processing, Text analysis, Portuguese, Vocative, Parsing}
}
Document
Linear Operators in Information Retrieval
Abstract
In this paper, we propose a pseudo-relevance feedback approach based on linear operators: vector space basis change and cross product. The aim of pseudo-relevance feedback methods based on vector space basis change IBM (Ideal Basis Method) is to optimally separate relevant and irrelevant documents. Whereas the aim of pseudo-relevance feedback method based on cross product AI (Absorption of irrelevance) is to effectively exploit irrelevant documents. We show how to combine IBM methods with AI methods. The combination methods IBM+AI are evaluated experimentally on two TREC collections (TREC-7 ad hoc and TREC-8 ad hoc). The experiments show that these methods improve previous works.
Cite as
Hawete Hattab and Rabeb Mbarek. Linear Operators in Information Retrieval. In 6th Symposium on Languages, Applications and Technologies (SLATE 2017). Open Access Series in Informatics (OASIcs), Volume 56, pp. 23:1-23:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)
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@InProceedings{hattab_et_al:OASIcs.SLATE.2017.23,
author = {Hattab, Hawete and Mbarek, Rabeb},
title = {{Linear Operators in Information Retrieval}},
booktitle = {6th Symposium on Languages, Applications and Technologies (SLATE 2017)},
pages = {23:1--23:8},
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.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2017.23},
URN = {urn:nbn:de:0030-drops-79565},
doi = {10.4230/OASIcs.SLATE.2017.23},
annote = {Keywords: Pseudo-relevance feedback, vector space basis change, Cross product}
}