• 14 June 2021: We are excited to annouce Ali E. Abbas as the first keynote speaker for MODeM 2021.
  • 14 June 2021: MODeM 2021 recieved a total of 10 submissions.
  • 17 May 2021: The deadline for submissions for MODeM 2021 has been extended to 7 June 2021
  • 19 April 2021: MODeM 2021 has been added to the list of endorsed events by the International Society on Multiple Criteria Decision Making
  • 23 March 2021: MODeM Workshop twitter account launched. Follow us @modem_workshop
  • 22 March 2021: MODeM 2021 site launched

Multi-Objective Decision Making Workshop - 2021

In recent years there has been a growing awareness of the need for automated and assistive decision making systems to move beyond single-objective formulations when dealing with complex real-world issues, which invariably involve multiple competing objectives. The purpose of this workshop is to promote collaboration and cross-fertilisation of ideas between researchers working in different areas of multi-objective decision making and on the topics of interest below, and to provide a forum for dissemination of high-quality multi-objective decision making research.

The workshop targets high-quality original papers covering all aspects of multi-objective decision making, including, but not limited to, the list of topics below. The following is a non-exhaustive list of topics that we would like to cover in the workshop:

  • Multi-objective/multi-criteria/multi-attribute decision making
  • Multi-objective reinforcement learning
  • Multi-objective planning and scheduling
  • Multi-objective multi-agent decision making
  • Multi-objective game theory
  • Preference elicitation for MODeM
  • Social choice and MODeM
  • Multi-objective decision support systems
  • Multi-objective metaheuristic optimisation (e.g. evolutionary algorithms) for autonomous agents and multi-agent systems
  • Multi-objectivisation
  • Explainable MODeM
  • Applications of MODeM
  • New benchmark problems for MODeM

Extended and revised versions of papers presented at the workshop will be eligible for inclusion in a journal special issue (see below).

Program Details

The workshop programme will be spread over 3 days from 14th to 16th July, consisting of contributed original talks, invited talks, and a panel discussion. Each day’s live session will be restricted to 2 hours duration, and scheduled to maximise opportunities for global participation. Presentations will also be recorded and available outside of these sessions, with a dedicated Discord channel for discussing each paper before, during and after the workshop. Extended and revised versions of papers presented at the workshop will be eligible for inclusion in a journal special issue (see below).

Important Dates

  • Submission Deadline: 31 May 2020   extended to 7 June 2021 by 23:59 UTC-12
  • Notification of acceptance: 30 June 2021
  • Camera-ready copies: 7 July 2021
  • Workshop: 14, 15 & 16 July 2021

Submission Details

Papers should be formatted according to the AAMAS 2021 guidelines, and should be a maximum of 8 pages in length (with additional pages containing references only). Shorter papers reporting preliminary results and work-in-progress are also welcome. Submissions should report original work that has not previously been published elsewhere.

All submissions will be peer-reviewed (single-blind). Accepted work will be allocated time for poster and possibly oral presentation during the workshop.

Papers can be submitted through Easychair.

When submitting a paper to MODeM 2021 it is important the authors remove the AAMAS copyright block in the latex style file. Please replace the AAMAS copyright block with the following:

\acmConference[MODeM '21]{Proc.\@ of the 1st Workshop on Multi-Objective Decision Making (MODeM)}
{July 14-16, 2021}{Online}{Hayes, Mannion, Vamplew (eds.)}

Journal Special Issue

After the workshop, all original contributions presented at MODeM 2021 will be invited to submit substantially improved and extended versions of their work, for consideration to be published in a post-proceedings journal special issue of JAAMAS.


Submission of preliminary work to the MODeM 2021 workshop does not confer an automatic entitlement to publish in the JAAMAS MODeM special issue; all special issue submissions must pass through the same rigorous JAAMAS review process and meet the standard JAAMAS publication criteria.

The JAAMAS MODeM special issue has an open call for papers; it is not necessary to submit preliminary work to the MODeM 2021 workshop in order to have your manuscript considered for publication in this special issue. The special issue is already open for submissions, and will remain open until October 1, 2021. Papers submitted to the special issue will be sent out for peer review as soon as they are received, and first decisions can be expected within 2 months approx.



Accepted Papers


Invited Talks


Programe Committee

  • Timothy Atkinson, NNAISENSE S.A., CH
  • Gabriel de Oliveira Ramos, Universidade do Vale do Rio dos Sinos, BR
  • Debora Di Caprio, University of Tento, IT
  • Madalina Drugan, ITLearns.Online, NL
  • Fredrik Heintz, Linköping University, SE
  • Athirai A. Irissappane, University of Washington (Tacoma), US
  • Johan Källström, Linköping University, SE
  • Thommen Karimpanal George, Deakin University, AU
  • Pieter Libin, Hasselt University, BE
  • Maite Lopez-Sanchez, Universitat de Barcelona, ES
  • Thibaut Lust, Sorbonne Université, FR
  • Frederico Malerba, University of Potsdam, DE
  • Karl Mason, National University of Ireland Galway, IE
  • Abdel-Illah Mouaddib, Université de Caen Normandy, FR
  • Simone Parisi, Facebook AI Research, US
  • Roxana Rădulescu, Vrije Universiteit Brussel, BE
  • Mathieu Reymond, Vrije Universiteit Brussel, BE
  • Manel Rodriguez-Soto, Artificial Intelligence Research Institute (IIIA-CSIC), ES
  • Sandhya Saisubramanian, University of Massachusetts Amherst, US
  • Francisco Javier Santos-Arteaga, Free University of Bolzano, IT
  • Nic Wilson, University College Cork, IE
  • Luisa M. Zintgraf, University of Oxford, UK
  • Yijie Zhang, University of Copenhagen, DK


This year's workshop is organised by: Senior Advisory Committee:


If you have any questions about the MODeM workshop, please contact the organizers at:
modem.workshop.2021 AT