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» Improving Backtrack Search for SAT by Means of Redundancy
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CP
2003
Springer
13 years 10 months ago
Unrestricted Nogood Recording in CSP Search
Recently spectacular improvements in the performance of SAT solvers have been achieved through nogood recording (clause learning). In the CSP literature, on the other hand, nogood ...
George Katsirelos, Fahiem Bacchus
LPNMR
2004
Springer
13 years 11 months ago
Answer Set Programming with Clause Learning
A conflict clause represents a backtracking solver’s analysis of why a conflict occurred. This analysis can be used to further prune the search space and to direct the search h...
Jeffrey Ward, John S. Schlipf
SAT
2005
Springer
107views Hardware» more  SAT 2005»
13 years 11 months ago
Local and Global Complete Solution Learning Methods for QBF
Solvers for Quantified Boolean Formulae (QBF) use many analogues of technique from SAT. A significant amount of work has gone into extending conflict based techniques such as co...
Ian P. Gent, Andrew G. D. Rowley
TIME
2002
IEEE
13 years 10 months ago
Applying Local Search to Temporal Reasoning
Local search techniques have attracted considerable interest in the Artificial Intelligence (AI) community since the development of GSAT [9] and the min-conflicts heuristic [5] ...
John Thornton, Matthew Beaumont, Abdul Sattar, Mic...
STACS
2005
Springer
13 years 11 months ago
Algorithmics in Exponential Time
Exponential algorithms, i.e. algorithms of complexity O(cn ) for some c > 1, seem to be unavoidable in the case of NP-complete problems (unless P=NP), especially if the problem ...
Uwe Schöning