This paper briefly reviews sources of symmetry in planning and highlights one source that has not previously been tackled: plan permutation symmetry. Symmetries can be a significant problem for efficiency of planning systems, as has been previously observed in the treatment of other forms of symmetry in planning problems. We examine how plan permutation symmetries can be eliminated and present evidence to support the claim that these symmetries are an important problem for planning systems.
|Publication status||Published - 2003|
|Event||22nd Workshop of the UK Planning and Scheduling Special Interest Group - Glasgow, United Kingdom|
Duration: 9 Dec 2003 → 10 Dec 2003
|Workshop||22nd Workshop of the UK Planning and Scheduling Special Interest Group|
|Abbreviated title||PLANSIG 2003|
|Period||9/12/03 → 10/12/03|