Preference elicitation for group decisions

Lihi Naamani-Dery, Inon Golan, Meir Kalech, Lior Rokach

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Groups engaged in a mutual activity often need assistance in order to reach a joint decision. However, the group members' personal preferences are often unknown and need to be collected. Querying for preferences can annoy the users. We suggest employing a voting mechanism that finds a winning item under incomplete settings. We present a practical method for eliciting the preferences, so that with a minimal amount of queries a winning item that certainly suits the group can be computed. The heuristic incorporates probabilistic assumptions on the users' preferences and was evaluated on a real world datasets as well as on simulated data, showing a saving in queries to users.

Original languageEnglish
Title of host publicationGroup Decision and Negotiation
Subtitle of host publicationA Process-Oriented View - Joint INFORMS-GDN and EWG-DSS International Conference, GDN 2014, Proceedings
Number of pages8
StatePublished - 2014
Externally publishedYes
Event14th conference of the INFORMS Section on Group Decision and Negotiation, GDN 2014 - Toulouse, France
Duration: 10 Jun 201413 Jun 2014

Publication series

NameLecture Notes in Business Information Processing
Volume180 LNBIP
ISSN (Print)1865-1348


Conference14th conference of the INFORMS Section on Group Decision and Negotiation, GDN 2014


  • Decision support systems
  • Preference elicitation
  • Social choice


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