Title
Lightweight Detection of Variable Symmetries for Constraint Satisfaction
Abstract
In this paper, we propose to automatically detect variable symmetries of CSP instances by computing for each constraint scope a partition exhibiting locally symmetric variables. From this local information obtained in polynomial time, we can build a so-called lsv-graph whose automorphisms correspond to (global) variable symmetries. Interestingly enough, our approach allows us to disregard the representation (extension, intension, global) of constraints. Besides, the size of the lsv-graph is linear with respect to the number of constraints (and their arity).
Year
DOI
Venue
2009
10.1109/ICTAI.2009.67
ICTAI
Keywords
Field
DocType
so-called lsv-graph,local information,variable symmetry,variable symmetries,csp instance,symmetric variable,polynomial time,constraint scope,lightweight detection,constraint satisfaction,generators,data mining,communicating sequential processes,symmetry,graph theory,markov processes,color,polynomials
Graph theory,Discrete mathematics,Constraint satisfaction,Arity,Markov process,Polynomial,Computer science,Artificial intelligence,Time complexity,Partition (number theory),Machine learning,Homogeneous space
Conference
ISSN
Citations 
PageRank 
1082-3409
1
0.35
References 
Authors
9
2
Name
Order
Citations
PageRank
Christophe Lecoutre170945.10
Sébastien Tabary2666.58