17 search results - page 1 / 4 » A spectral technique for random satisfiable 3CNF formulas |
RSA
2008
13 years 7 months ago
2008
Let I be a random 3CNF formula generated by choosing a truth assignment for variables x1, . . . , xn uniformly at random and including every clause with i literals set true by w...
FOCS
2006
IEEE
13 years 11 months ago
2006
IEEE
We consider random 3CNF formulas with n variables and m clauses. It is well known that when m > cn (for a sufficiently large constant c), most formulas are not satisfiable. How...
RSA
2006
13 years 7 months ago
2006
: On input a random 3-CNF formula of clauses-to-variables ratio r3 applies repeatedly the following simple heuristic: Set to True a literal that appears in the maximum number of cl...
SAT
2007
Springer
14 years 1 months ago
2007
Springer
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...
SODA
2000
ACM
13 years 8 months ago
2000
ACM
: k-SAT is one of the best known among a wide class of random constraint satisfaction problems believed to exhibit a threshold phenomenon where the control parameter is the ratio, ...