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COCO
2008
Springer
91views Algorithms» more  COCO 2008»
13 years 10 months ago
Amplifying ZPP^SAT[1] and the Two Queries Problem
This paper shows a complete upward collapse in the Polynomial Hierarchy (PH) if for ZPP, two queries to a SAT oracle is equivalent to one query. That is, ZPPSAT[1] = ZPPSAT [2] = ...
Richard Chang, Suresh Purini
CP
2008
Springer
13 years 10 months ago
Experimenting with Small Changes in Conflict-Driven Clause Learning Algorithms
Experimentation of new algorithms is the usual companion section of papers dealing with SAT. However, the behavior of those algorithms is so unpredictable that even strong experime...
Gilles Audemard, Laurent Simon
SODA
2001
ACM
93views Algorithms» more  SODA 2001»
13 years 10 months ago
Improved algorithms for 3-coloring, 3-edge-coloring, and constraint satisfaction
We consider worst case time bounds for NP-complete problems including 3-SAT, 3-coloring, 3-edge-coloring, and 3list-coloring. Our algorithms are based on a constraint satisfaction...
David Eppstein
SODA
1998
ACM
144views Algorithms» more  SODA 1998»
13 years 10 months ago
Analysis of Random Processes via And-Or Tree Evaluation
We introduce a new set of probabilistic analysis tools based on the analysis of And-Or trees with random inputs. These tools provide a unifying, intuitive, and powerful framework ...
Michael Luby, Michael Mitzenmacher, Mohammad Amin ...
CONSTRAINTS
2007
46views more  CONSTRAINTS 2007»
13 years 9 months ago
Local-search Extraction of MUSes
SAT is probably one of the most-studied constraint satisfaction problems. In this paper, a new hybrid technique based on local search is introduced in order to approximate and ext...
Éric Grégoire, Bertrand Mazure, C&ea...