Symmetries in planning problems

Long, Derek and Fox, Maria; (2003) Symmetries in planning problems. In: SymCon'03. University of Huddersfield, IRL, pp. 142-152.

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Symmetries arise in planning in a variety of ways. This paper describes the ways that symmetry aises most naturally in planning problems and reviews the approaches that have been applied to exploitation of symmetry in order to reduce search for plans. It then introduces some extensions to the use of symmetry in planning before moving on to consider how the exploitation of symmetry in planning might be generalised to offer new approaches to exploitation of symmetry in other combinatorial search problems.