Optimal search with inadmissible heuristics

Erez Karpas, Carmel Domshlak

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

Abstract

Considering cost-optimal heuristic search, we introduce the notion of global admissibility of a heuristic, a property weaker than standard admissibility, yet sufficient for guaranteeing solution optimality within forward search. We describe a concrete approach for creating globally admissible heuristics for domain independent planning; it is based on exploiting information gradually gathered by the search via a new form of reasoning about what we call existential optimal-plan landmarks. We evaluate our approach on some state-of-the-art heuristic search tools for cost-optimal planning, and discuss the results of this evaluation.

Original languageEnglish
Title of host publicationICAPS 2012 - Proceedings of the 22nd International Conference on Automated Planning and Scheduling
Pages92-100
Number of pages9
DOIs
StatePublished - 2012
Event22nd International Conference on Automated Planning and Scheduling, ICAPS 2012 - Atibaia, Sao Paulo, Brazil
Duration: 25 Jun 201229 Jun 2012

Publication series

NameICAPS 2012 - Proceedings of the 22nd International Conference on Automated Planning and Scheduling

Conference

Conference22nd International Conference on Automated Planning and Scheduling, ICAPS 2012
Country/TerritoryBrazil
CityAtibaia, Sao Paulo
Period25/06/1229/06/12

All Science Journal Classification (ASJC) codes

  • Strategy and Management

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