Researcher

Carles Sierra

Carles Sierra is an AI researcher whose work connects autonomous agents, electronic markets, negotiation, and human values. He began AI research in 1985, earned a computer science PhD from UPC in 1989, and coauthored a 1998 paper on trading agents in electronic auctions. EurAI elected him a Fellow in 2005; he served IJCAI as Trustee from 2014 to 2019 and Program Chair for IJCAI-17; ACM/SIGAI gave him its 2019 Autonomous Agents Research Award. He served as EurAI President from 2020 to 2024; in 2025, he received the association's Distinguished Service Award and coauthored a paper on value-aligned clinical protocols. As of October 2026, he is Research Professor and Director of IIIA-CSIC and Adjunct Professor at Western Sydney University, with work spanning multi-agent systems, computational negotiation, value-sensitive design, and AI in education.

Photo of Carles Sierra

Timeline

  1. 1985–1989

    Beginning AI research

    He began research in artificial intelligence in 1985 and earned a computer science PhD from the Technical University of Barcelona (UPC) in 1989.

  2. 1998

    Testing agents in electronic markets

    He coauthored 'Towards a Test-Bed for Trading Agents in Electronic Auction Markets' with Juan A. Rodríguez-Aguilar, Francisco J. Martín, Pablo Noriega and Pere Garcia.

  3. 2005

    A EurAI fellowship

    EurAI elected him a Fellow in 2005.

  4. 2014–2019

    Serving the IJCAI community

    He served as an IJCAI Trustee from 2014 to 2019 and as Program Chair for IJCAI-17.

  5. 2019

    An award for agent research

    The 2019 ACM/SIGAI Autonomous Agents Research Award recognized his research on negotiation, argumentation, computational trust and reputation, and artificial social systems.

  6. 2020–2024

    Leading EurAI

    He served as EurAI President from 2020 to 2024.

  7. 2025

    Values in clinical protocols

    EurAI gave him its Distinguished Service Award for 2025. He coauthored the 2025 AAMAS paper 'Towards Automating the Design of Value-Aligned Clinical Protocols'.

  8. As of October 2026

    Directing an AI institute

    He is Research Professor and Director of IIIA-CSIC in the Barcelona area, and Adjunct Professor at Western Sydney University. His work spans multi-agent systems, computational negotiation, value-sensitive design, and AI in education.

Sources and credits

Photo: iiia.csic.es; Personal; creator not stated. License: Not stated by source. Source: iiia.csic.es. Cropped to a square and resized. Ask us to remove or replace this photo.

  1. Carles Sierra – Digital Humanism Conference 2026 dighum.wien. Checked 14 October 2026.
  2. Pablo Noriega csauthors.net. Checked 14 October 2026.
  3. Awards | European Association for Artificial Intelligence eurai.org. Checked 14 October 2026.
  4. IJCAI Trustees | IJCAI ijcai.org. Checked 14 October 2026.
  5. Carles Sierra (2019 Autonomous Agents Research Award) - ACM SIGAI sigai.acm.org. Checked 14 October 2026.
  6. AAMAS 2025: Proceedings of the 2025 International Conference on Autonomous Agents and Multiagent Systems ifmas.csc.liv.ac.uk. Checked 14 October 2026.