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<p><span style="font-size: 14pt;"><strong>20th International Conference on</strong></span></p>
<p><span style="font-size: 14pt; color: #800000;"><strong>Principles of Knowledge Representation and Reasoning, KR 2023</strong></span></p>
<p><span style="font-size: 14pt;"><strong>September 2 - September 8, 2023, Rhodes, Greece</strong></span></p>
<p><br /></p>
<p><span style="color: #800000;"><strong><span style="font-size: 14pt;">First Call for Papers</span></strong></span></p>
<p style="text-align: justify;">Knowledge Representation and Reasoning (KR) is a well-established and lively field of research within Artificial Intelligence. KR builds on the fundamental thesis that knowledge can be represented in an explicit declarative form, suitable for processing by dedicated symbolic reasoning engines. This enables the exploitation of knowledge that would otherwise be implicit through semantically grounded inference mechanisms. Consequently, KR has contributed to the theory and practice of various areas in AI, including agents, automated planning and natural language processing, and to fields beyond AI, including data management, semantic web, verification, software engineering, robotics, computational biology, and cyber security.</p>
<p style="text-align: justify;">The KR conference series is the leading forum for timely in-depth presentation of progress in the theory and principles underlying the representation and computational management of knowledge.</p>
<p style="text-align: justify;">KR 2023 will consist of a number of tracks and events: the Main Track, the Applications & Systems Track, the special session on KR & ML, the special session on KR, Robotics & Planning, the Recently Published Research (RPR) Track, the Tutorials & Workshops, the Doctoral Consortium, and the Diversity and Inclusion Session. Details about all these events will be made available later (possibly in separate calls).</p>
<p style="text-align: justify;">Contributions to the Main Track, the Applications & Systems Track, the special session on KR & ML, and the special session on KR, Robotics & Planning will take the form of papers that will be published in the proceedings of KR 2023. We solicit papers presenting novel results on the principles of KR that clearly contribute to the formal foundations of relevant problems or show the applicability of results to implemented or implementable systems. We also welcome papers from other areas that show clear use of, or contributions to, the principles or practice of KR. We also encourage "reports from the field" of applications, experiments, developments, and tests. Further details about the submission guidelines and the selection criteria to be considered for the Applications & Systems Track, the special session on KR & ML, and the special session on KR, Robotics & Planning will be given later (possibly in separate calls).</p>
<p><br /></p>
<p><span style="font-size: 14pt;"><strong>Submission Guidelines</strong></span></p>
<p style="text-align: justify;">The Main Track, the Applications & Systems Track, as well as the special session on KR & ML and the special session on KR, Robotics & Planning will allow contributions of both <strong>regular papers (up to 9 pages)</strong> and <strong>short papers (up to 4 pages)</strong>, including abstract, figures, and (if any) but excluding references and acknowledgements, prepared and submitted according to the authors guidelines provided in the submission page.</p>
<p style="text-align: justify;">Both full and short papers must describe original, previously unpublished research, and must not simultaneously be submitted for publication elsewhere. These restrictions do not apply to previously accepted workshop papers with a limited audience and/or without archival proceedings, or to papers uploaded at public repositories (e.g., arXiv).</p>
<p style="text-align: justify;">Papers must be written in English and formatted using the style files provided in the submission page. Submissions are not anonymous (i.e., reviewing will be single-blind) and must be submitted in PDF format, through the EasyChair conference system: <a href="https://easychair.org/conferences/?conf=kr2023" target="_blank" rel="noopener noreferrer">https://easychair.org/conferences/?conf=kr2023</a></p>
<p style="text-align: justify;">The paper title, author names, contact details, and a brief abstract must be submitted electronically through the EasyChair conference system by the abstract submission deadline. It will be possible to make minor edits to the title and abstract until the full paper submission deadline. Submissions with “placeholder” abstracts will be removed without consideration.</p>
<p style="text-align: justify;">Full papers must be submitted through the same site by the paper submission deadline. The list of author names provided at submission time is final. Authors may not be added to, or removed from, papers following submission.</p>
<p style="text-align: justify;">Authors may optionally submit a separate PDF containing additional information that substantiates the claims made in their paper, such as proof details, additional experimental results, further details on experimental design, etc. If authors wish to make such material available to reviewers, they should do so by submitting a file through EasyChair, rather than by including links or references in their paper. The main paper must be self contained, as the supplementary material will not be published. Reviewers will have the option, but not the obligation, to consult the supplementary material.</p>
<p><br /></p>
<p><span style="font-size: 14pt;"><strong>Selection Process</strong></span></p>
<p style="text-align: justify;">The program committee consists of PC members (reviewers) and Area Chairs (ACs), who overview the reviewing and meta-reviewing process.</p>
<p style="text-align: justify;">Selection criteria include the novelty and originality of ideas, correctness, clarity, significance of results, potential impact and quality of the presentation.</p>
<p style="text-align: justify;">Papers violating the format (e.g., by decreasing margins or font sizes) or describing contributions that do not significantly meet the topics of the conference will be desk rejected by the program chairs, without any opportunity to submit an author response. By submitting a paper, authors acknowledge that they are aware of the possibility of receiving a summary rejection notification.</p>
<p style="text-align: justify;">Papers that are not desk rejected will be reviewed by a group of PC members (PCs) and the reviewing process will be supervised by an Area Chair (AC).</p>
<p style="text-align: justify;">The review process will include the opportunity for authors to respond to the reviews by pointing out factual errors in the reviews and answering specific questions by the reviewers. Author responses should be concise, and are not intended to create a dialogue between reviewers and authors. Author responses will be visible to PCs and ACs.</p>
<p style="text-align: justify;">The final decisions will be made by the program co-chairs. There will be no appeal for the decisions made.</p>
<p style="text-align: justify;">Accepted papers will be published in the KR 2023 proceedings. At least one author of each accepted paper is required to participate in the conference and present the work.</p>
<p style="text-align: justify;">Prizes for best papers (the Ray Reiter Best Paper Prize and the Marco Cadoli Best Student Paper Prize) will be possibly awarded, and runners-up will be possibly pointed out. Top papers from KR 2023 will be invited to the award-winning paper tracks of Artificial Intelligence (AIJ) and of the Journal of Artificial Intelligence Research (JAIR). Thus, award winners will have the possibility of choosing between AIJ and JAIR.</p>
<p style="text-align: justify;">All submissions will be treated in strict confidence until the publication date.</p>
<p><br /></p>
<p><span style="font-size: 14pt;"><strong>Organization</strong></span></p>
<p><strong>General Chair</strong></p>
<ul>
<li>Gabriele Kern-Isberner TU Dortmund, Germany</li>
</ul>
<p><strong>Program Chairs</strong></p>
<ul>
<li>Pierre Marquis Université d’Artois, France</li>
<li>Tran Cao Son New Mexico State University, USA</li>
</ul>
<p><strong>Local Arrangement Chair</strong></p>
<ul>
<li>Pavlos Peppas University of Patras, Greece</li>
</ul>
<p><strong>RPR Track </strong></p>
<ul>
<li>Leila Amgoud IRIT-CNRS, France</li>
<li>Martin Gebser Graz University of Technology, Austria </li>
</ul>
<p><strong>Applications & Systems Track </strong></p>
<ul>
<li>Matti Järvisalo University of Helsinki, Finland</li>
<li>Francesco Ricca University of Calabria, Italy </li>
</ul>
<p><strong>Special Session</strong> <strong>on KR & ML</strong></p>
<ul>
<li>Tias Guns KU Leuven, Belgium</li>
<li>Luciano Serafini Fondazione Bruno Kessler,Italy</li>
</ul>
<p><strong>Special Session</strong> <strong>on KR, Robotics & Planning</strong></p>
<ul>
<li>Esra Erdem Sabanci University, Turkey</li>
<li>Shiqi Zhang SUNY Binghamton, USA</li>
</ul>
<p><strong>Diversity and Inclusion Session</strong></p>
<ul>
<li>Meghyn Bienvenu LaBRI-CNRS, France</li>
<li>Stefan Schlobach Vrije Universiteit Amsterdam, The Netherlands </li>
</ul>
<p><strong>Doctoral Consortium </strong></p>
<ul>
<li>Tanya Braun University of Münster, Germany</li>
<li>Nico Potyka Imperial College London, UK</li>
</ul>
<p><strong>Tutorials & Workshops</strong> </p>
<ul>
<li>Nicolas Schwind AIST, Japan</li>
<li>Serena Villata I3S-CNRS, France</li>
</ul>
<p><strong>Funding & Sponsorship </strong></p>
<ul>
<li>Marcello Balduccini Saint Joseph's University, USA</li>
<li>Pedro Cabalar Corunna University, Spain</li>
</ul>
<p><strong>Publicity Chairs</strong></p>
<ul>
<li>Theofanis (Fanis) Aravanis University of Patras, Greece</li>
<li>Guillermo Simari Universidad Nacional del Sur, Argentina</li>
</ul>
<p><strong>Web Site</strong></p>
<ul>
<li>Ioannis (Yannis) Konstantoulas University of Patras, Greece</li>
</ul>
<p> </p>
<p><span style="font-size: 14pt;"><strong>Important Dates</strong></span></p>
<ul>
<li><strong>Submission of title and abstract: </strong>March 3, 2023</li>
<li><strong>Paper submission deadline: </strong>March 14, 2023</li>
<li><strong>Author response period: </strong>May 1-3, 2023</li>
<li><strong>Author notification: </strong>May 18, 2023</li>
<li><strong>Camera-ready papers: </strong>June 9, 2023</li>
<li><strong>Conference: </strong>September 2-8, 2023</li>
</ul>
<p>Details for submission to the RPR track, the Doctoral Consortium, and the Tutorials & Workshops will be given later, possibly in separate calls.</p>
<p><br /></p>
<p><span style="font-size: 14pt;"><strong>Topics of Interest</strong></span></p>
<p><strong>Topics of interest include, but are not limited to:</strong></p>
<ul>
<li>Applications of KR</li>
<li>Argumentation</li>
<li>Belief revision and update, belief merging</li>
<li>Commonsense reasoning</li>
<li>Computational aspects of knowledge representation</li>
<li>Concept formation, similarity-based reasoning</li>
<li>Contextual reasoning</li>
<li>Decision making</li>
<li>Description logics</li>
<li>Explanation finding, diagnosis, causal reasoning, abduction</li>
<li>Geometric, spatial, and temporal reasoning</li>
<li>Inconsistency- and exception-tolerant reasoning</li>
<li>Knowledge acquisition</li>
<li>Knowledge graphs and open linked data</li>
<li>Knowledge representation languages</li>
<li>KR and automated reasoning (satisfiability, QBF, model counting, knowledge compilation)</li>
<li>KR and autonomous agents and multi-agent systems</li>
<li>KR and cognitive modelling</li>
<li>KR and cognitive reasoning</li>
<li>KR and cognitive robotics</li>
<li>KR and cognitive systems</li>
<li>KR and cyber security</li>
<li>KR and education</li>
<li>KR and game theory</li>
<li>KR and machine learning, inductive logic programming,</li>
<li>KR and natural language processing and understanding</li>
<li>KR and the Web, Semantic Web</li>
<li>Logic programming, answer set programming</li>
<li>Modeling and reasoning about preferences</li>
<li>Multi- and order-sorted representations and reasoning</li>
<li>Non-monotonic logics, default logics, conditional logics</li>
<li>Ontology-based data access, integration, and exchange</li>
<li>Ontology formalisms and models</li>
<li>Philosophical foundations of KR</li>
<li>Qualitative reasoning, reasoning about physical systems</li>
<li>Reasoning about actions and change, action languages</li>
<li>Reasoning about constraints, constraint programming</li>
<li>Reasoning about knowledge, beliefs, and other mental attitudes</li>
<li>Uncertainty, vagueness, many-valued and fuzzy logics</li>
</ul>
<p><br /></p>
<p><span style="font-size: 14pt;"><strong>Contact</strong></span></p>
<p>All enquiries should be emailed to kr2023 (AT) easychair.org.</p>
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