Sorting Parity Encodings by Reusing Variables
Sorting Parity Encodings by Reusing Variables
复制标题
DOI:
10.1007/978-3-030-51825-7_1
复制
发表时间:
2020-06-26
期刊:
影响因子:
--
通讯作者:
Heule MJ
中科院分区:
文献类型:
--
作者:
Chew L;Heule MJ
Parity reasoning is challenging for CDCL solvers: Refuting a formula consisting of two contradictory, differently ordered parity constraints of modest size is hard. Two alternative methods can solve these reordered parity formulas efficiently: binary decision diagrams and Gaussian Elimination (which requires detection of the parity constraints). Yet, implementations of these techniques either lack support of proof logging or introduce many extension variables. The compact, commonly-used encoding of parity constraints uses Tseitin variables. We present a technique for short clausal proofs that exploits these Tseitin variables to reorder the constraints within the DRAT system. The size of our refutations of reordered parity formulas is .
登录
查看更多内容
影响因子:
1.1
作者:
Warners, JP;van Maaren, H
通讯作者:
van Maaren, H
影响因子:
2.5
作者:
ROBINSON, JA
通讯作者:
ROBINSON, JA
DOI:
10.3233/978-1-58603-929-5-131
发表时间:
2009-01-01
期刊:
HANDBOOK OF SATISFIABILITY
影响因子:
--
作者:
Marques-Silva, Joao;Lynce, Ines;Malik, Sharad
通讯作者:
Malik, Sharad
影响因子:
2.5
作者:
DAVIS, M;PUTNAM, H
通讯作者:
PUTNAM, H
影响因子:
1.1
作者:
Li, CM
通讯作者:
Li, CM