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» On 2-SAT and Renamable Horn
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AAAI
2000
13 years 6 months ago
On 2-SAT and Renamable Horn
We introduce new linear time algorithms for satisfiability of binary propositional theories (2-SAT), and for recognition and satisfiability of renamable Horn theories. The algorit...
Alvaro del Val
AAAI
2008
13 years 7 months ago
Extending the Knowledge Compilation Map: Krom, Horn, Affine and Beyond
We extend the knowledge compilation map introduced by Darwiche and Marquis with three influential propositional fragments, the Krom CNF one (also known as the bijunctive fragment)...
Hélène Fargier, Pierre Marquis
SAT
2007
Springer
99views Hardware» more  SAT 2007»
13 years 11 months ago
Horn Upper Bounds and Renaming
Abstract. We consider the problem of computing tractable approximations to CNF formulas, extending the approach of Selman and Kautz to compute the Horn-LUB to involve renaming of v...
Marina Langlois, Robert H. Sloan, György Tur&...
SAT
2005
Springer
117views Hardware» more  SAT 2005»
13 years 10 months ago
A Branching Heuristics for Quantified Renamable Horn Formulas
Sylvie Coste-Marquis, Daniel Le Berre, Florian Let...
IPL
2002
90views more  IPL 2002»
13 years 4 months ago
Recognition and dualization of disguised bidual Horn functions
We consider the problem of dualizing a Boolean function f given by CNF, i.e., computing a CNF for its dual fd . While this problem is not solvable in quasi-polynomial total time i...
Thomas Eiter, Toshihide Ibaraki, Kazuhisa Makino