THE PARALLEL COMPLEXITY OF SIMPLE LOGIC PROGRAMS

被引:11
|
作者
AFRATI, F
PAPADIMITRIOU, CH
机构
[1] STANFORD UNIV,STANFORD,CA 94305
[2] UNIV CALIF SAN DIEGO,DEPT COMP SCI,LA JOLLA,CA 92093
关键词
ALA; LNA; THN; ALGORITHMS; LANGUAGES; THEORY; AUTOMATON; NC; P-COMPLETENESS; POLYNOMIAL FRINGE; POLYNOMIAL STOCK; PUSHDOWN;
D O I
10.1145/153724.153752
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
We consider logic programs with a single recursive rule, whose right-hand side consists of binary relations forming a chain. We give a complete characterization of all programs of this form that are computable in NC (assuming that P not-equal NC). Our proof uses ideas from automata and language theory, and the combinatories of strings.
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页码:891 / 916
页数:26
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