Donaldson, A.F. and Gregory, P. (2005) Almost-Symmetry in Search. [Report]Full text not available in this repository. (Request a copy from the Strathclyde author)
Identifying and using a greater variety of symmetries often improves computational efficiency. Hence, it is natural to relax the notion of symmetry and deal with almost-symmetries which retain useful properties, occur more often and may have greater impact. In this work we consider a class of almost-symmetries, their representation, discovery and usage. Our approach is to relax the notion of graph symmetries (automorphisms) to account for vertices whose colors may change and whose edges may appear or disappear. In particular, our algorithms can discover a small number edge additions or removals that can make a given graph more symmetric.
|Keywords:||searching, search algorithm, information retrieval, Electronic computers. Computer science|
|Subjects:||Science > Mathematics > Electronic computers. Computer science|
|Department:||Faculty of Science > Computer and Information Sciences|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||28 Mar 2007|
|Last modified:||12 Jan 2017 01:11|