13 Search Results for "Dignum, Frank"

Document
Survey
DOI: 10.4230/TGDK.4.1.2
Temporal Modelling in Cultural Heritage Knowledge Graphs: Use Cases, Requirements, Evaluation, and Decision Support

Authors: Oleksandra Bruns, Jörg Waitelonis, Jeff Z. Pan, and Harald Sack

Published in: TGDK, Volume 4, Issue 1 (2026). Transactions on Graph Data and Knowledge, Volume 4, Issue 1

Abstract
Our culture, history and world are in constant motion, continuously shaped by the flow of time, evolving narratives, and shifting relationships. Capturing this temporal complexity within cultural heritage (CH) knowledge graphs is essential for preserving the dynamic nature of human heritage. However, standard RDF predicates fail to effectively model the temporal aspects of cultural data, such as changing facts, evolving relationships, and temporal concepts. Over the past two decades, a variety of RDF-based approaches have been proposed to address this limitation, yet guidance is missing on which method best suits specific CH contexts. This paper presents a systematic evaluation of temporal RDF modelling approaches from a CH perspective. Based on an analysis of real-world CH use cases, core temporal requirements are identified that reflect both modelling expressivity and practical concerns. Six prominent approaches - RDF*, tRDF, Named Graphs, Singleton Property, N-ary Relations, and 4D Fluents - are assessed across these requirements. Our findings reveal that no single solution fits all scenarios, but suitable approaches can be selected based on project-specific priorities. To support practitioners, a decision-support tool is introduced to guide them in selecting the most suitable extension for their specific needs. This work provides practical guidance for CH modelling and contributes to the broader development of temporally aware Linked Data.
Cite as

Oleksandra Bruns, Jörg Waitelonis, Jeff Z. Pan, and Harald Sack. Temporal Modelling in Cultural Heritage Knowledge Graphs: Use Cases, Requirements, Evaluation, and Decision Support. In Transactions on Graph Data and Knowledge (TGDK), Volume 4, Issue 1, pp. 2:1-2:46, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

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@Article{bruns_et_al:TGDK.4.1.2,
  author =	{Bruns, Oleksandra and Waitelonis, J\"{o}rg and Pan, Jeff Z. and Sack, Harald},
  title =	{{Temporal Modelling in Cultural Heritage Knowledge Graphs: Use Cases, Requirements, Evaluation, and Decision Support}},
  journal =	{Transactions on Graph Data and Knowledge},
  pages =	{2:1--2:46},
  ISSN =	{2942-7517},
  year =	{2026},
  volume =	{4},
  number =	{1},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/TGDK.4.1.2},
  URN =		{urn:nbn:de:0030-drops-256871},
  doi =		{10.4230/TGDK.4.1.2},
  annote =	{Keywords: Temporal Data Representation, RDF Extensions, Cultural Heritage, Knowledge Graphs}
}
Document
DOI: 10.4230/DagMan.11.1.1
Climate Change: What is Computing’s Responsibility? (Dagstuhl Perspectives Workshop 25122)

Authors: Bran Knowles, Vicki L. Hanson, Christoph Becker, Mike Berners-Lee, Andrew A. Chien, Benoit Combemale, Vlad Coroamă, Koen De Bosschere, Yi Ding, Adrian Friday, Boris Gamazaychikov, Lynda Hardman, Simon Hinterholzer, Mattias Höjer, Lynn Kaack, Lenneke Kuijer, Anne-Laure Ligozat, Jan Tobias Muehlberg, Yunmook Nah, Thomas Olsson, Anne-Cécile Orgerie, Daniel Pargman, Birgit Penzenstadler, Tom Romanoff, Emma Strubell, Colin Venters, and Junhua Zhao

Published in: Dagstuhl Manifestos, Volume 11, Issue 1 (2025)

Abstract
This Manifesto was produced from the Perspectives Workshop 25122 entitled "Climate Change: What is Computing’s Responsibility?" held March 16-19, 2025 at Schloss Dagstuhl, Germany. The Workshop provided a forum for world-leading computer scientists and expert consultants on environmental policy and sustainable transition to engage in a critical and urgent conversation about computing’s responsibilities in addressing climate change - or more aptly, climate crisis. The resulting Manifesto outlines commitments and directions for future action which, if adopted as a basis for more responsible computing practices, will help ensure that these technologies do not threaten the long-term habitability of the planet. We preface our Manifesto with a recognition that humanity is on a path that is not in agreement with international global warming targets and explore how computing technologies are currently hastening the overshoot of these boundaries. We critically assess the vaunted potential for harnessing computing technologies for the mitigation of global warming, agreeing that, under current circumstances, computing is contributing to negative environmental impacts in other sectors. Computing primarily improves efficiency and reduces costs which leads to more consumption and more negative environmental impact. Relying solely on efficiency gains in computing has thus far proven to be insufficient to curb global greenhouse gas emissions. Therefore, computing’s purpose within a strategy for tackling climate change must be reimagined. Our recommendations cover changes that need to be urgently made to the design priorities of computing technologies, but also speak to the more systemic shift in mindset, with sustainability and human rights providing a necessary moral foundation for developing the kinds of computing technologies most needed by society. We also stress the importance of digital policy that accounts for both the direct material impacts of computing and the detrimental indirect impacts arising from computing-enabled efficiencies, and the role of computing professionals in informing policy making.
Cite as

Bran Knowles, Vicki L. Hanson, Christoph Becker, Mike Berners-Lee, Andrew A. Chien, Benoit Combemale, Vlad Coroamă, Koen De Bosschere, Yi Ding, Adrian Friday, Boris Gamazaychikov, Lynda Hardman, Simon Hinterholzer, Mattias Höjer, Lynn Kaack, Lenneke Kuijer, Anne-Laure Ligozat, Jan Tobias Muehlberg, Yunmook Nah, Thomas Olsson, Anne-Cécile Orgerie, Daniel Pargman, Birgit Penzenstadler, Tom Romanoff, Emma Strubell, Colin Venters, and Junhua Zhao. Climate Change: What is Computing’s Responsibility? (Dagstuhl Perspectives Workshop 25122). In Dagstuhl Manifestos, Volume 11, Issue 1, pp. 1-18, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@Article{knowles_et_al:DagMan.11.1.1,
  author =	{Knowles, Bran and Hanson, Vicki L. and Becker, Christoph and Berners-Lee, Mike and Chien, Andrew A. and Combemale, Benoit and Coroam\u{a}, Vlad and De Bosschere, Koen and Ding, Yi and Friday, Adrian and Gamazaychikov, Boris and Hardman, Lynda and Hinterholzer, Simon and H\"{o}jer, Mattias and Kaack, Lynn and Kuijer, Lenneke and Ligozat, Anne-Laure and Muehlberg, Jan Tobias and Nah, Yunmook and Olsson, Thomas and Orgerie, Anne-C\'{e}cile and Pargman, Daniel and Penzenstadler, Birgit and Romanoff, Tom and Strubell, Emma and Venters, Colin and Zhao, Junhua},
  title =	{{Climate Change: What is Computing’s Responsibility? (Dagstuhl Perspectives Workshop 25122)}},
  pages =	{1--18},
  journal =	{Dagstuhl Manifestos},
  ISSN =	{2193-2433},
  year =	{2025},
  volume =	{11},
  number =	{1},
  editor =	{Knowles, Bran and Hanson, Vicki L. and Becker, Christoph and Berners-Lee, Mike and Chien, Andrew A. and Combemale, Benoit and Coroam\u{a}, Vlad and De Bosschere, Koen and Ding, Yi and Friday, Adrian and Gamazaychikov, Boris and Hardman, Lynda and Hinterholzer, Simon and H\"{o}jer, Mattias and Kaack, Lynn and Kuijer, Lenneke and Ligozat, Anne-Laure and Muehlberg, Jan Tobias and Nah, Yunmook and Olsson, Thomas and Orgerie, Anne-C\'{e}cile and Pargman, Daniel and Penzenstadler, Birgit and Romanoff, Tom and Strubell, Emma and Venters, Colin and Zhao, Junhua},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagMan.11.1.1},
  URN =		{urn:nbn:de:0030-drops-250724},
  doi =		{10.4230/DagMan.11.1.1},
  annote =	{Keywords: sustainability, climate change, efficiency, supply chain management, climate modelling}
}
Document
DOI: 10.4230/OASIcs.SpaceCHI.2025.15
Integrating Human-In-The-Loop AI to Tackle Space Communication Delay Challenges

Authors: Nikos Mavrakis, Effie Lai-Chong Law, and Hubert P. H. Shum

Published in: OASIcs, Volume 130, Advancing Human-Computer Interaction for Space Exploration (SpaceCHI 2025)

Abstract
Deep space missions face significant communication delays that disrupt both operational workflows and psychological support for crew members. Unlike low Earth orbit operations, delays ranging from several minutes to nearly an hour make real-time communication with mission control infeasible, forcing crews to act with greater independence under uncertain conditions. This position paper examines how human-in-the-loop AI, digital twins, and edge AI can be integrated to mitigate these delays while maintaining astronaut autonomy and engagement. We argue that human-in-the-loop AI enables decision-making processes that are responsive to local context while remaining adaptable to changing mission demands. Digital twins offer real-time simulation and predictive modelling capabilities, allowing astronauts to explore options and troubleshoot without waiting for ground input. Edge AI brings computation closer to data sources, enabling low-latency inference onboard spacecraft for time-critical decisions. These ideas are explored through two use cases: using deepfakes to support emotionally resonant communication with loved ones, and applying visual-language models for onboard fault diagnosis and adaptive task replanning. We conclude with reflections on system design challenges under constrained and high-stakes conditions.
Cite as

Nikos Mavrakis, Effie Lai-Chong Law, and Hubert P. H. Shum. Integrating Human-In-The-Loop AI to Tackle Space Communication Delay Challenges. In Advancing Human-Computer Interaction for Space Exploration (SpaceCHI 2025). Open Access Series in Informatics (OASIcs), Volume 130, pp. 15:1-15:16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@InProceedings{mavrakis_et_al:OASIcs.SpaceCHI.2025.15,
  author =	{Mavrakis, Nikos and Law, Effie Lai-Chong and Shum, Hubert P. H.},
  title =	{{Integrating Human-In-The-Loop AI to Tackle Space Communication Delay Challenges}},
  booktitle =	{Advancing Human-Computer Interaction for Space Exploration (SpaceCHI 2025)},
  pages =	{15:1--15:16},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-384-3},
  ISSN =	{2190-6807},
  year =	{2025},
  volume =	{130},
  editor =	{Bensch, Leonie and Nilsson, Tommy and Nisser, Martin and Pataranutaporn, Pat and Schmidt, Albrecht and Sumini, Valentina},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.SpaceCHI.2025.15},
  URN =		{urn:nbn:de:0030-drops-240051},
  doi =		{10.4230/OASIcs.SpaceCHI.2025.15},
  annote =	{Keywords: Human-in-the-loop AI, communication delays, human spaceflight}
}
Document
Vision
DOI: 10.4230/TGDK.1.1.3
Knowledge Engineering Using Large Language Models

Authors: Bradley P. Allen, Lise Stork, and Paul Groth

Published in: TGDK, Volume 1, Issue 1 (2023): Special Issue on Trends in Graph Data and Knowledge. Transactions on Graph Data and Knowledge, Volume 1, Issue 1

Abstract
Knowledge engineering is a discipline that focuses on the creation and maintenance of processes that generate and apply knowledge. Traditionally, knowledge engineering approaches have focused on knowledge expressed in formal languages. The emergence of large language models and their capabilities to effectively work with natural language, in its broadest sense, raises questions about the foundations and practice of knowledge engineering. Here, we outline the potential role of LLMs in knowledge engineering, identifying two central directions: 1) creating hybrid neuro-symbolic knowledge systems; and 2) enabling knowledge engineering in natural language. Additionally, we formulate key open research questions to tackle these directions.
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Bradley P. Allen, Lise Stork, and Paul Groth. Knowledge Engineering Using Large Language Models. In Special Issue on Trends in Graph Data and Knowledge. Transactions on Graph Data and Knowledge (TGDK), Volume 1, Issue 1, pp. 3:1-3:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Article{allen_et_al:TGDK.1.1.3,
  author =	{Allen, Bradley P. and Stork, Lise and Groth, Paul},
  title =	{{Knowledge Engineering Using Large Language Models}},
  journal =	{Transactions on Graph Data and Knowledge},
  pages =	{3:1--3:19},
  ISSN =	{2942-7517},
  year =	{2023},
  volume =	{1},
  number =	{1},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/TGDK.1.1.3},
  URN =		{urn:nbn:de:0030-drops-194777},
  doi =		{10.4230/TGDK.1.1.3},
  annote =	{Keywords: knowledge engineering, large language models}
}
Document
DOI: 10.4230/DFU.Vol4.12111.1
Norms in MAS: Definitions and Related Concepts

Authors: Tina Balke, Célia da Costa Pereira, Frank Dignum, Emiliano Lorini, Antonino Rotolo, Wamberto Vasconcelos, and Serena Villata

Published in: Dagstuhl Follow-Ups, Volume 4, Normative Multi-Agent Systems (2013)

Abstract
In this chapter we provide an introductory presentation of normative multi-agent systems (nMAS). The key idea of the chapter is that any definition of nMAS should preliminarily clarify meaning, scope, and function of the concept of norm. On account of this idea, we focus on three definitions and some related requirements for nMAS. For each of such definitions we propose some guidelines for developing nMAS. Second, we suggest how to relate the concept of nMAS to different conceptions of norms and how norms can be used within the systems. Finally, we identify some specific issues that open research questions or that exhibit interesting overlaps with other disciplines.
Cite as

Tina Balke, Célia da Costa Pereira, Frank Dignum, Emiliano Lorini, Antonino Rotolo, Wamberto Vasconcelos, and Serena Villata. Norms in MAS: Definitions and Related Concepts. In Normative Multi-Agent Systems. Dagstuhl Follow-Ups, Volume 4, pp. 1-31, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InCollection{balke_et_al:DFU.Vol4.12111.1,
  author =	{Balke, Tina and da Costa Pereira, C\'{e}lia and Dignum, Frank and Lorini, Emiliano and Rotolo, Antonino and Vasconcelos, Wamberto and Villata, Serena},
  title =	{{Norms in MAS: Definitions and Related Concepts}},
  booktitle =	{Normative Multi-Agent Systems},
  pages =	{1--31},
  series =	{Dagstuhl Follow-Ups},
  ISBN =	{978-3-939897-51-4},
  ISSN =	{1868-8977},
  year =	{2013},
  volume =	{4},
  editor =	{Andrighetto, Giulia and Governatori, Guido and Noriega, Pablo and van der Torre, Leendert W. N.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DFU.Vol4.12111.1},
  URN =		{urn:nbn:de:0030-drops-39983},
  doi =		{10.4230/DFU.Vol4.12111.1},
  annote =	{Keywords: Norms, MAS}
}
Document
DOI: 10.4230/DFU.Vol4.12111.191
The Uses of Norms

Authors: Munindar P. Singh, Matthew Arrott, Tina Balke, Amit K. Chopra, Rob Christiaanse, Stephen Cranefield, Frank Dignum, Davide Eynard, Emilia Farcas, Nicoletta Fornara, Fabien Gandon, Guido Governatori, Hoa Khanh Dam, Joris Hulstijn, Ingolf Krueger, Ho-Pun Lam, Michael Meisinger, Pablo Noriega, Bastin Tony Roy Savarimuthu, Kartik Tadanki, Harko Verhagen, and Serena Villata

Published in: Dagstuhl Follow-Ups, Volume 4, Normative Multi-Agent Systems (2013)

Abstract
This chapter presents a variety of applications of norms. These applications include governance in sociotechnical systems, data licensing and data collection, understanding software development teams, requirements engineering, assurance, natural resource allocation, wireless grids, autonomous vehicles, serious games, and virtual worlds.
Cite as

Munindar P. Singh, Matthew Arrott, Tina Balke, Amit K. Chopra, Rob Christiaanse, Stephen Cranefield, Frank Dignum, Davide Eynard, Emilia Farcas, Nicoletta Fornara, Fabien Gandon, Guido Governatori, Hoa Khanh Dam, Joris Hulstijn, Ingolf Krueger, Ho-Pun Lam, Michael Meisinger, Pablo Noriega, Bastin Tony Roy Savarimuthu, Kartik Tadanki, Harko Verhagen, and Serena Villata. The Uses of Norms. In Normative Multi-Agent Systems. Dagstuhl Follow-Ups, Volume 4, pp. 191-229, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@InCollection{singh_et_al:DFU.Vol4.12111.191,
  author =	{Singh, Munindar P. and Arrott, Matthew and Balke, Tina and Chopra, Amit K. and Christiaanse, Rob and Cranefield, Stephen and Dignum, Frank and Eynard, Davide and Farcas, Emilia and Fornara, Nicoletta and Gandon, Fabien and Governatori, Guido and Khanh Dam, Hoa and Hulstijn, Joris and Krueger, Ingolf and Lam, Ho-Pun and Meisinger, Michael and Noriega, Pablo and Savarimuthu, Bastin Tony Roy and Tadanki, Kartik and Verhagen, Harko and Villata, Serena},
  title =	{{The Uses of Norms}},
  booktitle =	{Normative Multi-Agent Systems},
  pages =	{191--229},
  series =	{Dagstuhl Follow-Ups},
  ISBN =	{978-3-939897-51-4},
  ISSN =	{1868-8977},
  year =	{2013},
  volume =	{4},
  editor =	{Andrighetto, Giulia and Governatori, Guido and Noriega, Pablo and van der Torre, Leendert W. N.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DFU.Vol4.12111.191},
  URN =		{urn:nbn:de:0030-drops-40047},
  doi =		{10.4230/DFU.Vol4.12111.191},
  annote =	{Keywords: Norms, MAS, Governance, Requirements engineering}
}
Document
DOI: 10.4230/DagSemProc.10021.1
10021 Abstracts Collection – Service-Oriented Architecture and (Multi-)Agent Systems Technology

Authors: Monique Calisti, Frank Leymann, Frank P. Dignum, Ryszard Kowalczyk, and Rainer Unland

Published in: Dagstuhl Seminar Proceedings, Volume 10021, Service-Oriented Architecture and (Multi-)Agent Systems Technology (2010)

Abstract
From 10.01. to 15.01.2010, Dagstuhl Seminar 10021 ``Service-Oriented Architecture and (Multi-)Agent Systems Technology '' was held in Schloss Dagstuhl~--~Leibniz Center for Informatics. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.
Cite as

Monique Calisti, Frank Leymann, Frank P. Dignum, Ryszard Kowalczyk, and Rainer Unland. 10021 Abstracts Collection – Service-Oriented Architecture and (Multi-)Agent Systems Technology. In Service-Oriented Architecture and (Multi-)Agent Systems Technology. Dagstuhl Seminar Proceedings, Volume 10021, pp. 1-16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{calisti_et_al:DagSemProc.10021.1,
  author =	{Calisti, Monique and Leymann, Frank and Dignum, Frank P. and Kowalczyk, Ryszard and Unland, Rainer},
  title =	{{10021 Abstracts Collection – Service-Oriented Architecture and (Multi-)Agent Systems Technology}},
  booktitle =	{Service-Oriented Architecture and (Multi-)Agent Systems Technology},
  pages =	{1--16},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10021},
  editor =	{Monique Calisti and Frank P. Dignum and Ryszard Kowalczyk and Frank Leymann and Rainer Unland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10021.1},
  URN =		{urn:nbn:de:0030-drops-28461},
  doi =		{10.4230/DagSemProc.10021.1},
  annote =	{Keywords: Service-oriented computing (SOC), Service-oriented architecture (SOA), multi-agent systems (MAS), engineering complex distributed systems, governance adaptability, dynamism, flexibility, autonomy}
}
Document
DOI: 10.4230/DagSemProc.10021.2
10021 Executive Summary – Service-Oriented Architecture and (Multi-)Agent Systems Technology

Authors: Monique Calisti, Frank Leymann, Frank P. Dignum, Ryszard Kowalczyk, and Rainer Unland

Published in: Dagstuhl Seminar Proceedings, Volume 10021, Service-Oriented Architecture and (Multi-)Agent Systems Technology (2010)

Abstract
Service-Oriented Architecture (SOA) stands for a standards-based and technology-independent distributed computing paradigm and architectural style which is especially suited to meet the demands of today’s dynamic business applications. Based on a comprehensive set of independent or at most loosely-coupled and network-available software services SOA is supposed to provide a platform for an efficient and effective publication, discovery, binding, and assembly of these services. Intelligent agents can be regarded as autonomous, problem-solving computational entities with social abilities that are capable of effective pro-active behavior in open and dynamic environments. If the term entity is replaced by service the substantial overlap in interests between both communities can easily be imagined. Nevertheless, right now the main research focus of each community seems to be different. The SOA community concentrates mainly on developing service engineering methodologies. Active topics in the multi-agent systems community are collaboration, self-organization, adaptability, flexibility, pro-activeness, and interoperability. The overlap between those two communities and the fact that they concentrate on different research topics can definitely be seen as a huge chance since it means that each community may be able to benefit from the research efforts of the other. This seminar brought members from both communities together in order to identify such areas of mutual benefit. After extensive general discussions the seminar concentrated on three topics, namely the engineering of complex distributed systems, its governance, and its adaptability and requirements for dynamism.
Cite as

Monique Calisti, Frank Leymann, Frank P. Dignum, Ryszard Kowalczyk, and Rainer Unland. 10021 Executive Summary – Service-Oriented Architecture and (Multi-)Agent Systems Technology. In Service-Oriented Architecture and (Multi-)Agent Systems Technology. Dagstuhl Seminar Proceedings, Volume 10021, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{calisti_et_al:DagSemProc.10021.2,
  author =	{Calisti, Monique and Leymann, Frank and Dignum, Frank P. and Kowalczyk, Ryszard and Unland, Rainer},
  title =	{{10021 Executive Summary – Service-Oriented Architecture and (Multi-)Agent Systems Technology}},
  booktitle =	{Service-Oriented Architecture and (Multi-)Agent Systems Technology},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10021},
  editor =	{Monique Calisti and Frank P. Dignum and Ryszard Kowalczyk and Frank Leymann and Rainer Unland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10021.2},
  URN =		{urn:nbn:de:0030-drops-28459},
  doi =		{10.4230/DagSemProc.10021.2},
  annote =	{Keywords: Service-oriented computing (SOC), Service-oriented architecture (SOA), multi-agent systems (MAS), engineering complex distributed systems, governance adaptability, dynamism, flexibility, autonomy}
}
Document
DOI: 10.4230/DagSemProc.10021.3
Adapting Web Services for Multiple Devices: a Model-Driven, Aspect-Oriented Approach

Authors: Guadalupe Ortiz-Bellot and Alfonso Garcia de Prado

Published in: Dagstuhl Seminar Proceedings, Volume 10021, Service-Oriented Architecture and (Multi-)Agent Systems Technology (2010)

Abstract
Mobile devices have become an essential element in our daily lives, even for connecting to the Internet. Web Services have become extremely important when offering services through the Internet. However, current Web Services are very inflexible as regards their invocation from different types of device, especially if we consider the need for them to be adaptable when being invoked from a mobile device. In this paper, we will propose several alternatives for the creation of flexible web services which can be invoked from different types of device, and compare the different proposed approaches. Aspect -Oriented Programming and Model-Driven Development have been used in all proposals to reduce the impact of service adaption, not only for the service developer, but also to maintain the correct code structure. This work has been developed thanks to the support of MEC (contract TIN2008-02985).
Cite as

Guadalupe Ortiz-Bellot and Alfonso Garcia de Prado. Adapting Web Services for Multiple Devices: a Model-Driven, Aspect-Oriented Approach. In Service-Oriented Architecture and (Multi-)Agent Systems Technology. Dagstuhl Seminar Proceedings, Volume 10021, pp. 1-2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{ortizbellot_et_al:DagSemProc.10021.3,
  author =	{Ortiz-Bellot, Guadalupe and Garcia de Prado, Alfonso},
  title =	{{Adapting Web Services for Multiple Devices: a Model-Driven, Aspect-Oriented Approach}},
  booktitle =	{Service-Oriented Architecture and (Multi-)Agent Systems Technology},
  pages =	{1--2},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10021},
  editor =	{Monique Calisti and Frank P. Dignum and Ryszard Kowalczyk and Frank Leymann and Rainer Unland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10021.3},
  URN =		{urn:nbn:de:0030-drops-28122},
  doi =		{10.4230/DagSemProc.10021.3},
  annote =	{Keywords: Web Services, Mobile Devices, Aspct-Oriented Programming, Model-Driven Development}
}
Document
DOI: 10.4230/DagSemProc.10021.4
An Agent Based Approach for the Decentralised Compensation of Business Processes

Authors: Tim Lessner

Published in: Dagstuhl Seminar Proceedings, Volume 10021, Service-Oriented Architecture and (Multi-)Agent Systems Technology (2010)

Abstract
An automated execution of business processes, composed of Web Services, also requires a reliable error handling and in the case of failures at least parts of a process need to be recovered. One way to enable a forward oriented recovery is compensation which allows to semantically undo effects even "long" time after the process --a long running transaction-- commits. Usually, compensation as for example applied in BPEL (Business Process Execution Language), requires that all compensation steps associated with the business process perform successfully. Also, the conditions for a compensation are not considered and it is not dynamic. In some business scenarios, e.g. a complex production process involving several partners, compensation is a commitment under certain conditions. These conditions in turn can be dynamic and interdependent. Often, a lot of human effort is required to perform compensation. Agents in turn, can enable a decentralised compensation in which agents negotiate a commitment to find a proper compensation strategy. Especially in highly dynamic environment this enables on the one hand a dynamic compensation, and on the other it can support human decision finding in case of failure.
Cite as

Tim Lessner. An Agent Based Approach for the Decentralised Compensation of Business Processes. In Service-Oriented Architecture and (Multi-)Agent Systems Technology. Dagstuhl Seminar Proceedings, Volume 10021, pp. 1-6, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{lessner:DagSemProc.10021.4,
  author =	{Lessner, Tim},
  title =	{{An Agent Based Approach for the Decentralised Compensation of Business Processes}},
  booktitle =	{Service-Oriented Architecture and (Multi-)Agent Systems Technology},
  pages =	{1--6},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10021},
  editor =	{Monique Calisti and Frank P. Dignum and Ryszard Kowalczyk and Frank Leymann and Rainer Unland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10021.4},
  URN =		{urn:nbn:de:0030-drops-25527},
  doi =		{10.4230/DagSemProc.10021.4},
  annote =	{Keywords: Compensation, Business Processes, Agents, Commitment}
}
Document
DOI: 10.4230/DagSemProc.10021.5
Programming Service Oriented Agents

Authors: Benjamin Hirsch, Thomas Konnerth, Michael Burkhardt, and Sahin Albayrak

Published in: Dagstuhl Seminar Proceedings, Volume 10021, Service-Oriented Architecture and (Multi-)Agent Systems Technology (2010)

Abstract
This paper introduces a programming language for service-oriented agents. JADL++ combines the ease of use of scripting-languages with a state-of-the-art service oriented approach which allows the seamless integration of web-services. Furthermore, the language includes OWL-based ontologies for semantic descriptions of data and services, thus allowing agents to make intelligent decisions about service calls.
Cite as

Benjamin Hirsch, Thomas Konnerth, Michael Burkhardt, and Sahin Albayrak. Programming Service Oriented Agents. In Service-Oriented Architecture and (Multi-)Agent Systems Technology. Dagstuhl Seminar Proceedings, Volume 10021, pp. 1-16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{hirsch_et_al:DagSemProc.10021.5,
  author =	{Hirsch, Benjamin and Konnerth, Thomas and Burkhardt, Michael and Albayrak, Sahin},
  title =	{{Programming Service Oriented Agents}},
  booktitle =	{Service-Oriented Architecture and (Multi-)Agent Systems Technology},
  pages =	{1--16},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10021},
  editor =	{Monique Calisti and Frank P. Dignum and Ryszard Kowalczyk and Frank Leymann and Rainer Unland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10021.5},
  URN =		{urn:nbn:de:0030-drops-28158},
  doi =		{10.4230/DagSemProc.10021.5},
  annote =	{Keywords: Service oriented architectures, agents, agent programming language, semantic services}
}
Document
DOI: 10.4230/DagSemProc.10021.6
Reliability of Service-Based and Agent-Based Systems

Authors: Michael N. Huhns

Published in: Dagstuhl Seminar Proceedings, Volume 10021, Service-Oriented Architecture and (Multi-)Agent Systems Technology (2010)

Abstract
A description of the current problems of service-oriented architectures and service-oriented computing and how the solutions will come from using agent technology. That is, services will have to become more agent-like in order to succeed fully in the marketplace.
Cite as

Michael N. Huhns. Reliability of Service-Based and Agent-Based Systems. In Service-Oriented Architecture and (Multi-)Agent Systems Technology. Dagstuhl Seminar Proceedings, Volume 10021, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)

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@InProceedings{huhns:DagSemProc.10021.6,
  author =	{Huhns, Michael N.},
  title =	{{Reliability of Service-Based and Agent-Based Systems}},
  booktitle =	{Service-Oriented Architecture and (Multi-)Agent Systems Technology},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2010},
  volume =	{10021},
  editor =	{Monique Calisti and Frank P. Dignum and Ryszard Kowalczyk and Frank Leymann and Rainer Unland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.10021.6},
  URN =		{urn:nbn:de:0030-drops-25546},
  doi =		{10.4230/DagSemProc.10021.6},
  annote =	{Keywords: Service-oriented computing, multiagent systems}
}
Document
DOI: 10.4230/DagSemProc.07122.23
On the Logic of Constitutive Rules

Authors: Davide Grossi, John-Jules Meyer, and Frank Dignum

Published in: Dagstuhl Seminar Proceedings, Volume 7122, Normative Multi-agent Systems (2007)

Abstract
The paper proposes a logical systematization of the notion of counts-as which is grounded on a very simple intuition about what counts-as statements actually mean, i.e., forms of classification. Moving from this analytical thesis the paper disentangles three semantically different readings of statements of the type X counts as Y in context C, from the weaker notion of contextual classification to the stronger notion of constitutive rule. These many ways in which counts-as can be said are then formally addressed by making use of modal logic techniques. The resulting framework allows for a formal characterization of all the involved notions and their reciprocal logical relationships.
Cite as

Davide Grossi, John-Jules Meyer, and Frank Dignum. On the Logic of Constitutive Rules. In Normative Multi-agent Systems. Dagstuhl Seminar Proceedings, Volume 7122, pp. 1-33, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2007)

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@InProceedings{grossi_et_al:DagSemProc.07122.23,
  author =	{Grossi, Davide and Meyer, John-Jules and Dignum, Frank},
  title =	{{On the Logic of Constitutive Rules}},
  booktitle =	{Normative Multi-agent Systems},
  pages =	{1--33},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2007},
  volume =	{7122},
  editor =	{Guido Boella and Leon van der Torre and Harko Verhagen},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.07122.23},
  URN =		{urn:nbn:de:0030-drops-9131},
  doi =		{10.4230/DagSemProc.07122.23},
  annote =	{Keywords: Constitutive rules, counts-as, modal logic.}
}
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