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Multiagent Systems

The Multi-Agent Systems (MAS) group at IIIA-CSIC carries out scientific research of excellence in areas that are central to autonomous agents and multi-agent systems: computational models of negotiation, control and organisation, trust and reputation, optimisation, semantics, and recommender systems. It positions itself at the intersection of CSIC's global areas SOCIETY and MATTER through interdisciplinary research of high socio-economic impact. The goals of the group are governed by an approach to AI focused on human beings, developing computer systems that are aligned with the ethical and social values of the communities that use them, empowering people in the interactions mediated by these systems, respecting and fostering diversity, and exploring new forms of collaboration.

Head of the Group:  Marco Schorlemmer
David Aguilera Luzon
Masters Student

Davide Audrito
PhD Student

Victor Bermejo Gil
Contract Engineer

Filippo Bistaffa
Tenured Scientist
Phone Ext. 431849

Pompeu Casanovas Romeu
Research Professor

Olena Chebanyuk
Contract Researcher

Roberto Confalonieri
Tenured Scientist

Dave de Jonge
Contract Researcher
Phone Ext. 431825

Roger Xavier Lera Leri
PhD Student
Phone Ext. 431834

Antonio Lobo Santos
Masters Student

Alejandra López de Aberasturi Gómez
PhD Student
Phone Ext. 431831

Laura Lopez Zambrano
Masters Student

Pablo Noriega
Científico Ad Honorem
Phone Ext. 431829

Maria Olshanetska
Masters Student

Nardine Osman
Tenured Scientist
Phone Ext. 431826

Shuxian Pan
PhD Student
Phone Ext. 431832

Juan A. Rodríguez-Aguilar
Research Professor
Phone Ext. 431861

Manel Rodríguez Soto
Contract Researcher
Phone Ext. 431832

Raquel Ros Espinoza
Tenured Scientist

Jordi Sabater-Mir
Tenured Scientist
Phone Ext. 431856

Marco Schorlemmer
Tenured Scientist
Phone Ext. 431858

Marc Serramia Amoros
Contract Researcher

Carles Sierra
Research Professor
Phone Ext. 431801

Núria Vallès Peris
Tenured Scientist
Phone Ext. 431816

Mireia Vendrell Morancho
Contract Researcher

David Watts
PhD Student

In Press
Nardine Osman,  Ronald Chenu-Abente,  Qiang Shen,  Carles Sierra,  & Fausto Giunchiglia (In Press). Empowering Users in Online Open Communities. SN Computer Science. [BibTeX]  [PDF]
2024
Roger Xavier Lera Leri,  Enrico Liscio,  Filippo Bistaffa,  Catholijn M. Jonker,  Maite Lopez-Sanchez,  Pradeep K. Murukannaiah,  Juan A. Rodríguez-Aguilar,  & Francisco Salas-Molina (2024). Aggregating value systems for decision support. Knowledge-Based Systems, 287, 111453. https://doi.org/10.1016/j.knosys.2024.111453. [BibTeX]  [PDF]
Manel Rodríguez Soto,  Juan A. Rodríguez-Aguilar,  & Maite López-Sánchez (2024). An Analytical Study of Utility Functions in Multi-Objective Reinforcement Learning. The Thirty-eighth Annual Conference on Neural Information Processing Systems (NeurIPS 2024) . [BibTeX]  [PDF]
Adrià Fenoy,  Filippo Bistaffa,  & Alessandro Farinelli (2024). An attention model for the formation of collectives in real-world domains. Artificial Intelligence, 328, 104064. https://doi.org/10.1016/j.artint.2023.104064. [BibTeX]  [PDF]
Roger Xavier Lera Leri,  & Filippo Bistaffa (2024). A Robust and Scalable Approach to Meet User Preferences in Research Project Planning. Ulle Endriss, Francisco S. Melo, Kerstin Bach, Alberto José Bugarín Diaz, Jose Maria Alonso Moral, Senén Barro, & Fredrik Heintz (Eds.), ECAI 2024 - 27th European Conference on Artificial Intelligence, 19-24 October 2024, Santiago de Compostela, Spain - Including 13th Conference on Prestigious Applications of Intelligent Systems (PAIS 2024) (pp. 4516--4523). IOS Press. https://doi.org/10.3233/FAIA241043. [BibTeX]  [PDF]
Dave de Jonge,  & Laura Rodriguez Cima (2024). Attila: A Negotiating Agent for the Game of Diplomacy, Based on Purely Symbolic A.I. Mehdi Dastani, Jaime Simão Sichman, Natasha Alechina, & Virginia Dignum (Eds.), Proceedings of the 23rd International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2024, Auckland, New Zealand, May 6-10, 2024 (pp. 2234--2236). {ACM}. https://doi.org/10.5555/3635637.3663118. [BibTeX]  [PDF]
Dave de Jonge,  & Laura Rodriguez Cima (2024). Attila: A Negotiating Diplomacy Player Based on Purely Symbolic A.I.. Ryuta Arisaka, Víctor Sánchez-Anguix, Sebastian Stein, Reyhan Aydogan, Leon Torre, & Takayuki Ito (Eds.), PRIMA 2024: Principles and Practice of Multi-Agent Systems - 25th International Conference, Kyoto, Japan, November 18-24, 2024, Proceedings (pp. 3--18). Springer. https://doi.org/10.1007/978-3-031-77367-9\_1. [BibTeX]  [PDF]
Jianglin Qiao,  Dongmo Zhang,  Dave de Jonge,  Simeon Simoff,  & Carles Sierra (2024). Automated Negotiation Mechanisms for Autonomous Vehicles at Intersections. Rafik Hadfi, Patricia Anthony, Alok Sharma, Takayuki Ito, & Quan Bai (Eds.), PRICAI 2024: Trends in Artificial Intelligence - 21st Pacific Rim International Conference on Artificial Intelligence, PRICAI 2024, Kyoto, Japan, November 18-24, 2024, Proceedings, Part IV (pp. 271--283). Springer. https://doi.org/10.1007/978-981-96-0125-7\_22. [BibTeX]
Thiago Freitas Santos,  Nardine Osman,  & Marco Schorlemmer (2024). Can Interpretability Layouts Influence Human Perception of Offensive Sentences?. Davide Calvaresi, Amro Najjar, Andrea Omicini, Reyhan Aydogan, Rachele Carli, Giovanni Ciatto, Joris Hulstijn, & Kary Främling (Eds.), Explainable and Transparent AI and Multi-Agent Systems - 6th International Workshop, EXTRAAMAS 2024, Auckland, New Zealand, May 6-10, 2024, Revised Selected Papers (pp. 39--57). Springer. https://doi.org/10.1007/978-3-031-70074-3_3. [BibTeX]
Dimitra Bourou,  Marco Schorlemmer,  Enric Plaza,  & Marcell Veiner (2024). Characterising cognitively useful blends: Formalising governing principles of conceptual blending. Cognitive Systems Research, 86, 101245. https://doi.org/10.1016/j.cogsys.2024.101245. [BibTeX]  [PDF]
Marco Schorlemmer (2024). Cultivar la "correcció dels noms" en parlar de la intel·ligència artificial. Qüestions de Vida Cristiana, 278, 71--80. [BibTeX]
Núria Vallès-Peris,  & Miquel Domènech (2024). Digital Citizenship at School: Democracy, Pragmatism and Rri. Technology in Society, 76. https://doi.org/10.2139/ssrn.4128968. [BibTeX]
Jianglin Qiao,  Dave de Jonge,  Dongmo Zhang,  Simeon Simoff,  Carles Sierra,  & Bo Du (2024). Extended Abstract: Price of Anarchy of Traffic Assignment with Exponential Cost Functions. Mehdi Dastani, Jaime Simão Sichman, Natasha Alechina, & Virginia Dignum (Eds.), Proceedings of the 23rd International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2024, Auckland, New Zealand, May 6-10, 2024 (pp. 2842--2844). ACM. https://doi.org/10.5555/3635637.3663307. [BibTeX]
Errikos Streviniotis,  Athina Georgara,  Filippo Bistaffa,  & Georgios Chalkiadakis (2024). FairPlay: A Multi-Sided Fair Dynamic Pricing Policy for Hotels. Proceedings of the AAAI Conference on Artificial Intelligence, 38, 22368-22376. https://doi.org/10.1609/aaai.v38i20.30243. [BibTeX]  [PDF]
Marco Schorlemmer,  Mohamad Ballout,  & Kai-Uwe Kühnberger (2024). Generating Qualitative Descriptions of Diagrams with a Transformer-Based Language Model. Jens Lemanski, Mikkel Willum Johansen, Emmanuel Manalo, Petrucio Viana, Reetu Bhattacharjee, & Richard Burns (Eds.), Diagrammatic Representation and Inference - 14th International Conference, Diagrams 2024, Münster, Germany, September 27 - October 1, 2024, Proceedings (pp. 61--75). Springer. https://doi.org/10.1007/978-3-031-71291-3_5. [BibTeX]
Thiago Freitas Santos,  Nardine Osman,  & Marco Schorlemmer (2024). Is This a Violation? Learning and Understanding Norm Violations in Online Communities. Artificial Intelligence, 327. https://doi.org/10.1016/j.artint.2023.104058. [BibTeX]
Thimjo Koça,  Dave de Jonge,  & Tim Baarslag (2024). Search algorithms for automated negotiation in large domains. Annals of Mathematics and Artificial Intelligence, 92, 903--924. https://doi.org/10.1007/s10472-023-09859-w. [BibTeX]
Ignacio Huitzil,  Miguel Molina-Solana,  Juan Gómez-Romero,  Marco Schorlemmer,  Pere Garcia-Calvés,  Nardine Osman,  Josep Coll,  & Fernando Bobillo (2024). Semantic Building Information Modeling: An Empirical Evaluation of Existing Tools. Journal of Industrial Information Integration, 42, 100731. https://doi.org/10.1016/j.jii.2024.100731. [BibTeX]
Dave de Jonge (2024). Theoretical Properties of the MiCRO Negotiation Strategy. Autonomous Agents and Multi-Agent Systems, 38. https://doi.org/10.1007/s10458-024-09678-1. [BibTeX]  [PDF]
Nardine Osman,  Bruno Rosell,  Andrew Koster,  Marco Schorlemmer,  Carles Sierra,  & Jordi Sabater-Mir (2024). The uHelp Application. Nardine Osman (Eds.), Electronic Institutions: Applications to uHelp, WeCurate and PeerLearn (pp 61--79). Springer. https://doi.org/10.1007/978-3-319-65605-2_3. [BibTeX]
Manel Rodríguez Soto,  Nardine Osman,  Carles Sierra,  Paula Sánchez Veja,  Rocío Cintas García,  Cristina Farriols Danes,  Montserrat García Retortillo,  & Sílvia Mínguez Maso (2024). Towards value awareness in the medical field. (pp. 8). Special Session on AI with Awareness Inside of the 16th International Conference on Agents and Artificial Intelligence (ICAART 2024). [BibTeX]  [PDF]
Manel Rodríguez Soto,  Nardine Osman,  Carles Sierra,  Nieves Montes,  Jordi Martínez Roldán,  Rocío Cintas García,  Cristina Farriols Danes,  Montserrat García Retortillo,  & Sílvia Mínguez Maso (2024). User Study Design for Identifying the Semantics of Bioethical Principles. (pp. 16). Second International Workshop on Value Engineering in Artificial Intelligence (VALE2024) at the European Conference on Artificial Intelligence (ECAI), Santiago de Compostela). [BibTeX]  [PDF]
M Serramia Amoros,  M Lopez-Sanchez,  Juan A. Rodríguez-Aguilar,  & S Moretti (2024). Value alignment in participatory budgeting. Proceedings of the 23rd International Conference on Autonomous Agents and Multiagent Systems . [BibTeX]  [PDF]
2023
Francisco Salas-Molina,  Filippo Bistaffa,  & Juan A. Rodríguez-Aguilar (2023). A general approach for computing a consensus in group decision making that integrates multiple ethical principles. Socio-Economic Planning Sciences, 89, 101694. https://doi.org/10.1016/j.seps.2023.101694. [BibTeX]  [PDF]
Jordi Ganzer-Ripoll,  Natalia Criado,  Maite Lopez-Sanchez,  Simon Parsons,  & Juan A. Rodríguez-Aguilar (2023). A model to support collective reasoning: Formalization, analysis and computational assessment. Journal of Artificial Intelligence Research. [BibTeX]  [PDF]
Francisco Salas-Molina,  Juan A. Rodríguez-Aguilar,  & Montserrat Guillén (2023). A multidimensional review of the cash management problem. Financial Innovation, 9. [BibTeX]  [PDF]
Thiago Freitas Santos,  Nardine Osman,  & Marco Schorlemmer (2023). A multi-scenario approach to continuously learn and understand norm violations. Autonomous Agents and Multi-Agent Systems, 37, 38. https://doi.org/10.1007/s10458-023-09619-4. [BibTeX]
Francisco Salas-Molina,  David Pla-Santamaria,  & Juan A. Rodríguez-Aguilar (2023). An analytic derivation of the efficient frontier in biobjective cash management and its implications for policies. Annals of Operations Research. [BibTeX]  [PDF]
Dave de Jonge (2023). A New Bargaining Solution for Finite Offer Spaces. Applied Intelligence, 53, 28310--28332. https://doi.org/10.1007/s10489-023-05009-1. [BibTeX]  [PDF]
Dimitra Bourou,  Marco Schorlemmer,  & Enric Plaza (2023). An Image-Schematic Analysis of Hasse and Euler Diagrams. Maria M. Hedblom, & Oliver Kutz (Eds.), Proceedings of The Seventh Image Schema Day co-located with The 20th International Conference on Principles of Knowledge Representation and Reasoning (KR 2023), Rhodes, Greece, September 2nd, 2023 . CEUR-WS.org. https://ceur-ws.org/Vol-3511/paper\_05.pdf. [BibTeX]
Marc Serramia,  Maite López-Sánchez,  Stefano Moretti,  & Juan A. Rodríguez-Aguilar (2023). Building rankings encompassing multiple criteria to support qualitative decision-making. Information Sciences, 631, 288-304. [BibTeX]  [PDF]
Núria Vallès-Peris,  & Miquel Domènech (2023). Care robots for the common good: ethics as politics. Humanities & Social Sciences Communications, 10, 345. https://doi.org/10.1057/s41599-023-01850-4. [BibTeX]
Núria Vallès-Peris,  & Miquel Domènech (2023). Caring in the in-between: a proposal to introduce responsible AI and robotics to healthcare. AI and Society, 38, 1685--1695. https://doi.org/10.1007/s00146-021-01330-w. [BibTeX]
Pompeu; Casanovas,  & Pablo Noriega (2023). Cómo regular lo altamente complejo. Nuevos Diálogos, 2, 25–31. https://nuevosdialogos.unam.mx/download/38/02-inteligencia-artificial/3378/como-regular-lo-altamente-complejo.pdf. [BibTeX]  [PDF]
Thiago Freitas Santos,  Stephen Cranefield,  Bastin Tony Roy Savarimuthu,  Nardine Osman,  & Marco Schorlemmer (2023). Cross-community Adapter Learning {(CAL)}to Understand the Evolving Meanings of Norm Violation. Proceedings of the Thirty-Second International Joint Conference on Artificial Intelligence, {IJCAI}2023, 19th-25th August 2023, Macao, SAR, China (pp. 109--117). ijcai.org. https://doi.org/10.24963/IJCAI.2023/13. [BibTeX]
Marc Serramia,  Manel Rodriguez-Soto,  Maite Lopez-Sanchez,  Juan A. Rodríguez-Aguilar,  Filippo Bistaffa,  Paula Boddington,  Michael Wooldridge,  & Carlos Ansotegui (2023). Encoding Ethics to Compute Value-Aligned Norms. Minds and Machines, 1--30. [BibTeX]  [PDF]
Filippo Bistaffa (2023). Faster Exact MPE and Constrained Optimization with Deterministic Finite State Automata. Proceedings of the Thirty-Second International Joint Conference on Artificial Intelligence, {IJCAI}2023, 19th-25th August 2023, Macao, SAR, China (pp. 1884--1892). ijcai.org. https://doi.org/10.24963/IJCAI.2023/209. [BibTeX]
Maria Verdaguer,  Núria Vallès-Peris,  Xavier Busquet-Duran,  Eduard Moreno-Gabriel,  Patricia Beroiz,  Antonia {Arreciado Marañón},  Maria Feijoo-Cid,  Miquel Domènech,  Lupicinio Iñiguez-Rueda,  Glòria Cantarell,  & Pere Torán-Monserrat (2023). Implementation of Assisted Dying in Catalonia: Impact on Professionals and Development of Good Practices. Protocol for a Qualitative Study. International Journal of Qualitative Methods, 22, 1--11. https://doi.org/10.1177/16094069231186133. [BibTeX]
Celeste Veronese,  Daniele Meli,  Filippo Bistaffa,  Manel Rodríguez Soto,  Alessandro Farinelli,  & Juan A. Rodríguez-Aguilar (2023). Inductive Logic Programming For Transparent Alignment With Multiple Moral Values. . 2nd International Workshop on Emerging Ethical Aspects of AI (BEWARE-23). [BibTeX]  [PDF]
Enrico Liscio,  Roger Lera-Leri,  Filippo Bistaffa,  Roel I. J. Dobbe,  Catholijn M. Jonker,  Maite López-Sánchez,  Juan A. Rodríguez-Aguilar,  & Pradeep K. Murukannaiah (2023). Inferring Values via Hybrid Intelligence. Proceedings of the 2nd International Conference on Hybrid Human Artificial Intelligence (HHAI) (pp. In press). [BibTeX]  [PDF]