Complexity Results for Modal Dependence Logic
Complexity Results for Modal Dependence Logic
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模态依赖逻辑的复杂性结果
DOI:
10.1007/s11225-013-9483-6
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发表时间:
2013
期刊:
影响因子:
0.7
通讯作者:
H. Vollmer
中科院分区:
文献类型:
--
作者:
P. Lohmann;H. Vollmer
Modal dependence logic was introduced recently by Väänänen. It enhances the basic modal language by an operator = (). For propositional variablesp1, . . . ,pn, = (p1, . . . ,pn-1,pn) intuitively states that the value ofpnis determined by those ofp1, . . . ,pn-1. Sevenster (J. Logic and Computation, 2009) showed that satisfiability for modal dependence logic is complete for nondeterministic exponential time.In this paper we consider fragments of modal dependence logic obtained by restricting the set of allowed propositional connectives. We show that satisfiability forpoor man’s dependence logic, the language consisting of formulas built from literals and dependence atoms using(i. e., disallowing disjunction), remains NEXPTIME-complete. If we only allow monotone formulas (without negation, but with disjunction), the complexity drops to PSPACE-completeness.We also extend Väänänen’s language by allowing classical disjunction besides dependence disjunction and show that the satisfiability problem remains NEXPTIME-complete. If we then disallow both negation and dependence disjunction, satisfiability is complete for the second level of the polynomial hierarchy. Additionally we consider the restriction of modal dependence logic where the length of each single dependence atom is bounded by a number that is fixed for the whole logic. We show that the satisfiability problem for this bounded arity dependence logic is PSPACE-complete and that the complexity drops to the third level of the polynomial hierarchy if we then disallow disjunction.In this way we completely classify the computational complexity of the satisfiability problem for all restrictions of propositional and dependence operators considered by Väänänen and Sevenster.
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影响因子:
14.4
作者:
F. M. Donini;M. Lenzerini;D. Nardi;B. Hollunder;W. Nutt;A. Marchetti
通讯作者:
A. Marchetti
DOI:
10.1007/bf01744287
发表时间:
1979
期刊:
Mathematical systems theory
影响因子:
--
作者:
H. R. Lewis
通讯作者:
H. R. Lewis
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
J. Väänänen
通讯作者:
J. Väänänen
DOI:
10.1016/s0049-237x(08)70066-1
发表时间:
1989
期刊:
Studies in logic and the foundations of mathematics
影响因子:
--
作者:
J. Hintikka;G. Sandu
通讯作者:
G. Sandu
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
S. Reith;K. Wagner;L. Theoretische
通讯作者:
L. Theoretische