Parameterized heuristics for incomplete weighted CSPs with elicitation costs

Atena M. Tabakhi, William Yeoh, Makoto Yokoo

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

4 被引用数 (Scopus)

抄録

Weighted Constraint Satisfaction Problems (WCSPs) are an elegant paradigm for modeling combinatorial optimization problems. A key assumption in this model is that all constraints are specified or known a priori, which does not hold in some applications where constraints may encode preferences of human users. Incomplete WCSPs (IWCSPs) extend WCSPs by allowing some constraints to be partially specified, and they can be elicited from human users during the execution of IWCSP algorithms. Unfortunately, existing approaches assume that the elicitation of preferences does not incur any additional cost. This assumption is unrealistic as human users are likely bothered by repeated elicitations and will refuse to provide an unbounded number of preferences. Therefore, we propose the IWCSP with Elicitation Cost (IWCSP+EC) model, which extends IWCSPs to include elicitation costs, as well as three parameterized heuristics that allow users to trade off solution quality for fewer elicited preferences and faster computation times. They provide theoretical quality guarantees for problems where elicitations are free. Our model and heuristics thus extend the state of the art in constraint reasoning to better model and solve agent-based applications with user preferences.

本文言語英語
ホスト出版物のタイトル18th International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2019
出版社International Foundation for Autonomous Agents and Multiagent Systems (IFAAMAS)
ページ476-484
ページ数9
ISBN(電子版)9781510892002
出版ステータス出版済み - 2019
イベント18th International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2019 - Montreal, カナダ
継続期間: 5 13 20195 17 2019

出版物シリーズ

名前Proceedings of the International Joint Conference on Autonomous Agents and Multiagent Systems, AAMAS
1
ISSN(印刷版)1548-8403
ISSN(電子版)1558-2914

会議

会議18th International Conference on Autonomous Agents and Multiagent Systems, AAMAS 2019
国/地域カナダ
CityMontreal
Period5/13/195/17/19

All Science Journal Classification (ASJC) codes

  • 人工知能
  • ソフトウェア
  • 制御およびシステム工学

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