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DOI: 10.4230/TGDK.2.1.1
Towards Representing Processes and Reasoning with Process Descriptions on the Web

Authors: Andreas Harth, Tobias Käfer, Anisa Rula, Jean-Paul Calbimonte, Eduard Kamburjan, and Martin Giese

Published in: TGDK, Volume 2, Issue 1 (2024): Special Issue on Trends in Graph Data and Knowledge - Part 2. Transactions on Graph Data and Knowledge, Volume 2, Issue 1

Abstract
We work towards a vocabulary to represent processes and temporal logic specifications as graph-structured data. Different fields use incompatible terminologies for describing essentially the same process-related concepts. In addition, processes can be represented from different perspectives and levels of abstraction: both state-centric and event-centric perspectives offer distinct insights into the underlying processes. In this work, we strive to unify the representation of processes and related concepts by leveraging the power of knowledge graphs. We survey approaches to representing processes and reasoning with process descriptions from different fields and provide a selection of scenarios to help inform the scope of a unified representation of processes. We focus on processes that can be executed and observed via web interfaces. We propose to provide a representation designed to combine state-centric and event-centric perspectives while incorporating temporal querying and reasoning capabilities on temporal logic specifications. A standardised vocabulary and representation for processes and temporal specifications would contribute towards bridging the gap between the terminologies from different fields and fostering the broader application of methods involving temporal logics, such as formal verification and program synthesis.
Cite as

Andreas Harth, Tobias Käfer, Anisa Rula, Jean-Paul Calbimonte, Eduard Kamburjan, and Martin Giese. Towards Representing Processes and Reasoning with Process Descriptions on the Web. In Special Issue on Trends in Graph Data and Knowledge - Part 2. Transactions on Graph Data and Knowledge (TGDK), Volume 2, Issue 1, pp. 1:1-1:32, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@Article{harth_et_al:TGDK.2.1.1,
  author =	{Harth, Andreas and K\"{a}fer, Tobias and Rula, Anisa and Calbimonte, Jean-Paul and Kamburjan, Eduard and Giese, Martin},
  title =	{{Towards Representing Processes and Reasoning with Process Descriptions on the Web}},
  journal =	{Transactions on Graph Data and Knowledge},
  pages =	{1:1--1:32},
  ISSN =	{2942-7517},
  year =	{2024},
  volume =	{2},
  number =	{1},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/TGDK.2.1.1},
  URN =		{urn:nbn:de:0030-drops-198583},
  doi =		{10.4230/TGDK.2.1.1},
  annote =	{Keywords: Process modelling, Process ontology, Temporal logic, Web services}
}
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}
}
Document
DOI: 10.4230/DagRep.3.6.83
Interoperation in Complex Information Ecosystems (Dagstuhl Seminar 13252)

Authors: Andreas Harth, Craig A. Knoblock, Kai-Uwe Sattler, and Rudi Studer

Published in: Dagstuhl Reports, Volume 3, Issue 6 (2013)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 13252 "Interoperation in Complex Information Ecosystems".
Cite as

Andreas Harth, Craig A. Knoblock, Kai-Uwe Sattler, and Rudi Studer. Interoperation in Complex Information Ecosystems (Dagstuhl Seminar 13252). In Dagstuhl Reports, Volume 3, Issue 6, pp. 83-134, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)

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@Article{harth_et_al:DagRep.3.6.83,
  author =	{Harth, Andreas and Knoblock, Craig A. and Sattler, Kai-Uwe and Studer, Rudi},
  title =	{{Interoperation in Complex Information Ecosystems (Dagstuhl Seminar 13252)}},
  pages =	{83--134},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2013},
  volume =	{3},
  number =	{6},
  editor =	{Harth, Andreas and Knoblock, Craig A. and Sattler, Kai-Uwe and Studer, Rudi},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.3.6.83},
  URN =		{urn:nbn:de:0030-drops-42597},
  doi =		{10.4230/DagRep.3.6.83},
  annote =	{Keywords: Information integration, System interoperation, Complex information ecosystems, Dataspaces, Linked Data, Semantic Web, Sensor networks, Restful design}
}
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