The EPIA Conference on Artificial Intelligence (AI) is a well-established European conference in the field of AI. The 21st edition of the EPIA conference will take at Instituto Superior Técnico of the University of Lisbon, from August 31st to September 2nd, 2022.

As in previous editions, this international conference is hosted with the patronage of the Portuguese Association for Artificial Intelligence (APPIA). The purpose of this conference is to promote research in all areas of AI, covering both theoretical/foundational issues and applications, and the scientific exchange among researchers, engineers and practitioners in related disciplines.

The Program Chairs for EPIA 2022, together with the International Steering Committee, have selected a number of different thematic tracks to be featured on the conference, covering a wide spectrum of AI topics.

Knowledge Representation and Reasoning

Knowledge Representation and Reasoning (KRR) is an exciting and well-established field of research. In KRR, a fundamental assumption is that an agent’s knowledge is explicitly represented in a declarative form, suitable for processing by dedicated reasoning engines. This assumption, that much of what an agent deals with is knowledge-based, is common in many modern intelligent systems. Consequently, KRR has contributed to the theory and practice of various areas in AI, such as automated planning and natural language understanding, among others, as well as to fields beyond AI, including databases, software engineering, the Semantic Web, computational biology, and the development of software agents.

We welcome papers that contribute to the formal foundations of KRR or that show the applicability of results to implemented or implementable systems. We also welcome papers from other areas that show the use of, or contributions to, the principles or practice of KRR.


The topics of interest include, but are not limited to: 

  • Action, change, causality and causal reasoning
  • Argumentation
  • Belief revision and update, belief merging, etc.
  • Commonsense reasoning
  • Constraint programming and KRR
  • Contextual reasoning
  • Description logics
  • Diagnosis, abduction, explanation finding
  • Inconsistency- and exception tolerant reasoning, paraconsistent logics
  • KR and autonomous agents: intelligent agents, cognitive robotics, multi-agent systems
  • KR and decision making, game theory, social choice
  • KR and machine learning, inductive logic programming, knowledge discovery and acquisition
  • KR and stream reasoning
  • KR and the Web, Semantic Web
  • Logic programming, answer set programming, constraint logic programming
  • Non-monotonic logics, default logics, conditional logics
  • Ontology formalisms and models
  • Preferences: modeling and representation, preference-based reasoning
  • Reasoners and solvers: SAT solvers, theorem provers, QBF solvers, and others
  • Reasoning about knowledge and belief, dynamic epistemic logic, epistemic and doxastic logics
  • Spatial reasoning and temporal reasoning, qualitative reasoning
  • Uncertainty in KRR, representations of vagueness, many-valued and fuzzy logics

Organisation Committee

  • Eduardo Fermé, NOVA LINCS & Faculty of Exact Sciences and Engineering University of Madeira, Portugal
  • Matthias Knorr, NOVA LINCS & Departamento de Informática, Universidade NOVA de Lisboa, Portugal
  • Pedro Cabalar, University of Corunna, Spain
  • Rafael Penãloza Nyssen, IKR3 Lab, University of Milano-Bicocca, Italy
  • Ricardo Gonçalves, NOVA LINCS & Departamento de Informática, Universidade NOVA de Lisboa, Portugal

Program Committee

  • Alejandro Garcia, Universidad Nacional del Sur, Argentina
  • Carlos Areces, Universidad Nacional de Córdoba, Argentina
  • Carmine Dodaro, University of Calabria, Italy
  • Cristina Feier, University of Bremen, Germany
  • David Pearce, Universidad Politécnica de Madrid, Spain
  • David Rajaratnam, University of New South Wales, Australia
  • Emmanuele Dietz Saldanha, Technische Universitat Dresden, Germany
  • Erman Acar, Vrije Universiteit Amsterdam, Netherlands
  • Fabrizio Maggi, University of Tartu, Estonia
  • Francesca Alessandra Lisi, Universit degli Studi di Bari Aldo Moro, Italy
  • Gerhard Brewka, Leipzig University, Germany
  • Guohui Xiao, Free University of Bozen-Bolzano, Italy
  • Inês Lynce, University of Lisbon, Portugal
  • Jesse Heyninck, University of Dortmund, Germany
  • João Leite, Universidade Nova de Lisboa, Portugal
  • José Júlio Alferes, Universidade Nova de Lisboa, Portugal
  • Jorge Fandinno, University of Nebraska at Omaha, USA
  • Mantas Simkus, Vienna University of Technology, Austria
  • Manuel Ojeda, Universidad de Málaga, Spain
  • Maria Vanina Martinez, Universidad de Buenos Aires, Argentina
  • Marco Paulo Ferreirinha Garapa, University of Madeira, Portugal
  • Mario Alviano, University of Calabria, Italy
  • Maurício Duarte Luís Reis, University of Madeira, Portugal
  • Nicolas Troquard, Free University of Bozen-Bolzano, Italy
  • Orkunt Sabuncu, TED University Ankara, Turkey
  • Rafael Testa, University of Campinas, Brazil
  • Ramon Pino Perez, Yachay Tech University, Ecuador
  • Salvador Abreu, University of Évora, Portugal]

For more info on the track:

For more info on EPIA itself, such as the program, invited
speakers, submission details, and registration, please refer to:

EPIA Committees

Event and Program Chairs

  • Ana Paiva, INESC-ID, IST, Portugal
  • Bernardete Ribeiro, CISUC, UC, Portugal
  • Goreti Marreiros, GECAD, ISEP-IPP, Portugal

Local Organisers

  • Alberto Sardinha, INESC-ID, IST, Portugal
  • Bruno Martins, INESC-ID, IST, Portugal

International Steering Committee

  • Ana Bazzan, Universidade Federal do Rio Grande do Sul, Brazil
  • Ann Nowe, Vrije Universiteit Brussel, Belgium
  • Ernesto Costa, Universidade de Coimbra, Portugal
  • Eugénio Oliveira, Universidade do Porto, Portugal
  • Helder Coelho, Universidade de Lisboa, Portugal
  • João Pavão Martins, Portugal
  • José Júlio Alferes, Universidade Nova de Lisboa, Portugal
  • Juan Pavón, Universidad Complutense Madrid, Spain
  • Luís Paulo Reis, Universidade do Porto, Portugal
  • Paulo Novais, Universidade do Minho, Portugal
  • Pavel Brazdil, Universidade do Porto, Portugal
  • Virginia Dignum, Umeå University, Sweden

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