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Documents authored by Ciortea, Andrei

Document
Vision
DOI: 10.4230/TGDK.1.1.13
Autonomy in the Age of Knowledge Graphs: Vision and Challenges

Authors: Jean-Paul Calbimonte, Andrei Ciortea, Timotheus Kampik, Simon Mayer, Terry R. Payne, Valentina Tamma, and Antoine Zimmermann

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
In this position paper, we propose that Knowledge Graphs (KGs) are one of the prime approaches to support the programming of autonomous software systems at the knowledge level. From this viewpoint, we survey how KGs can support different dimensions of autonomy in such systems: For example, the autonomy of systems with respect to their environment, or with respect to organisations; and we discuss related practical and research challenges. We emphasise that KGs need to be able to support systems of autonomous software agents that are themselves highly heterogeneous, which limits how these systems may use KGs. Furthermore, these heterogeneous software agents may populate highly dynamic environments, which implies that they require adaptive KGs. The scale of the envisioned systems - possibly stretching to the size of the Internet - highlights the maintainability of the underlying KGs that need to contain large-scale knowledge, which requires that KGs are maintained jointly by humans and machines. Furthermore, autonomous agents require procedural knowledge, and KGs should hence be explored more towards the provisioning of such knowledge to augment autonomous behaviour. Finally, we highlight the importance of modelling choices, including with respect to the selected abstraction level when modelling and with respect to the provisioning of more expressive constraint languages.
Cite as

Jean-Paul Calbimonte, Andrei Ciortea, Timotheus Kampik, Simon Mayer, Terry R. Payne, Valentina Tamma, and Antoine Zimmermann. Autonomy in the Age of Knowledge Graphs: Vision and Challenges. In Special Issue on Trends in Graph Data and Knowledge. Transactions on Graph Data and Knowledge (TGDK), Volume 1, Issue 1, pp. 13:1-13:22, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Article{calbimonte_et_al:TGDK.1.1.13,
  author =	{Calbimonte, Jean-Paul and Ciortea, Andrei and Kampik, Timotheus and Mayer, Simon and Payne, Terry R. and Tamma, Valentina and Zimmermann, Antoine},
  title =	{{Autonomy in the Age of Knowledge Graphs: Vision and Challenges}},
  journal =	{Transactions on Graph Data and Knowledge},
  pages =	{13:1--13:22},
  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.1.1.13},
  URN =		{urn:nbn:de:0030-drops-194872},
  doi =		{10.4230/TGDK.1.1.13},
  annote =	{Keywords: Knowledge graphs, Autonomous Systems}
}
Document
DOI: 10.4230/DagRep.13.2.71
Agents on the Web (Dagstuhl Seminar 23081)

Authors: Olivier Boissier, Andrei Ciortea, Andreas Harth, Alessandro Ricci, and Danai Vachtsevanou

Published in: Dagstuhl Reports, Volume 13, Issue 2 (2023)

Abstract
Recent standardization on the Web of Things and (Social) Linked Data unlocks new practical use cases and new opportunities for research on Web-based multi-agent systems. While existing research on multi-agent systems can contribute to engineering adaptive and flexible Web-based systems, increased deployment of systems following the recent standards can bring new insight into engineering large-scale and open multi-agent systems. These developments motivate the need for a broader perspective that can only be achieved through a concerted effort of the research communities on Web Architecture and Web of Things, Semantic Web and Linked Data, and Autonomous Agents and Multi-Agent Systems. Thus, the main objective of the Dagstuhl Seminar 23081 on Agents on the Web was to investigate these new research opportunities, to support the transfer of knowledge and results across the different communities, and to create a network of leading scholars and practitioners around these topics. This report documents the seminar’s program and outcomes. To continue the joint work after the seminar, the seminar participants created the W3C Autonomous Agents on the Web (WebAgents) Community Group.
Cite as

Olivier Boissier, Andrei Ciortea, Andreas Harth, Alessandro Ricci, and Danai Vachtsevanou. Agents on the Web (Dagstuhl Seminar 23081). In Dagstuhl Reports, Volume 13, Issue 2, pp. 71-162, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)

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@Article{boissier_et_al:DagRep.13.2.71,
  author =	{Boissier, Olivier and Ciortea, Andrei and Harth, Andreas and Ricci, Alessandro and Vachtsevanou, Danai},
  title =	{{Agents on the Web (Dagstuhl Seminar 23081)}},
  pages =	{71--162},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2023},
  volume =	{13},
  number =	{2},
  editor =	{Boissier, Olivier and Ciortea, Andrei and Harth, Andreas and Ricci, Alessandro and Vachtsevanou, Danai},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.13.2.71},
  URN =		{urn:nbn:de:0030-drops-191820},
  doi =		{10.4230/DagRep.13.2.71},
  annote =	{Keywords: Web Architecture, Web of Things, Semantic Web, Linked Data, Multi-Agent Systems}
}
Document
DOI: 10.4230/DagRep.11.1.24
Autonomous Agents on the Web (Dagstuhl Seminar 21072)

Authors: Olivier Boissier, Andrei Ciortea, Andreas Harth, and Alessandro Ricci

Published in: Dagstuhl Reports, Volume 11, Issue 1 (2021)

Abstract
The World Wide Web has emerged as the middleware of choice for most distributed systems. Recent standardization efforts for the Web of Things and Linked Data are now turning hypermedia into a homogeneous information fabric that interconnects everything - devices, information resources, abstract concepts, etc. The latest standards allow clients not only to browse and query, but also to observe and act on this hypermedia fabric. Researchers and practitioners are already looking for means to build more sophisticated clients able to meet their design objectives through flexible autonomous use of this hypermedia fabric. Such autonomous agents have been studied to large extent in research on distributed artificial intelligence and, in particular, multi-agent systems. These recent developments thus motivate the need for a broader perspective that can only be achieved through a concerted effort of the research communities on the Web Architecture and the Web of Things, Semantic Web and Linked Data, and Autonomous Agents and Multi-Agent Systems. The Dagstuhl Seminar 21072 on "Autonomous Agents on the Web" brought together leading scholars and practitioners across these research areas in order to support the transfer of knowledge and results - and to discuss new opportunities for research on Web-based autonomous systems. This report documents the seminar’s program and outcomes.
Cite as

Olivier Boissier, Andrei Ciortea, Andreas Harth, and Alessandro Ricci. Autonomous Agents on the Web (Dagstuhl Seminar 21072). In Dagstuhl Reports, Volume 11, Issue 1, pp. 24-100, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@Article{boissier_et_al:DagRep.11.1.24,
  author =	{Boissier, Olivier and Ciortea, Andrei and Harth, Andreas and Ricci, Alessandro},
  title =	{{Autonomous Agents on the Web (Dagstuhl Seminar 21072)}},
  pages =	{24--100},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2021},
  volume =	{11},
  number =	{1},
  editor =	{Boissier, Olivier and Ciortea, Andrei and Harth, Andreas and Ricci, Alessandro},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.11.1.24},
  URN =		{urn:nbn:de:0030-drops-143497},
  doi =		{10.4230/DagRep.11.1.24},
  annote =	{Keywords: Web Architecture, Web of Things, Semantic Web, Linked Data, Multi-Agent Systems}
}
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