749 search results - page 147 / 150 » Dualities for Constraint Satisfaction Problems |
WG
2005
Springer
14 years 1 months ago
2005
Springer
We review the concepts of hypertree decomposition and hypertree width from a graph theoretical perspective and report on a number of recent results related to these concepts. We al...
CIAC
2003
Springer
14 years 29 days ago
2003
Springer
Abstract. We consider problems of (new) station placement along (existing) railway tracks, so as to increase the number of users. We prove that, in spite of the NP-hardness for the...
SODA
2010
ACM
13 years 6 months ago
2010
ACM
We present an exact algorithm that decides, for every fixed r ≥ 2 in time O(m) + 2O(k2 ) whether a given multiset of m clauses of size r admits a truth assignment that satisfi...
STOC
2009
ACM
14 years 8 months ago
2009
ACM
We study integrality gaps for SDP relaxations of constraint satisfaction problems, in the hierarchy of SDPs defined by Lasserre. Schoenebeck [25] recently showed the first integra...
SIGSOFT
2007
ACM
14 years 8 months ago
2007
ACM
Atomicity is a desirable property that safeguards application consistency for service compositions. A service composition exhibiting this property could either complete or cancel ...