Combining spatial and temporal logics: Expressiveness vs. complexity

被引:39
|
作者
Gabelaia, D [1 ]
Kontchakov, R
Kurucz, A
Wolter, F
Zakharyaschev, M
机构
[1] Kings Coll London, Dept Comp Sci, London WC2R 2LS, England
[2] Univ Liverpool, Dept Comp Sci, Liverpool L69 7ZF, Merseyside, England
关键词
D O I
10.1613/jair.1537
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
In this paper, we construct and investigate a hierarchy of spatio-temporal formalisms that result from various combinations of propositional spatial and temporal logics such as the propositional temporal logic PTL, the spatial logics RCC-8, BRCC-8, S4u and their fragments. The obtained results give a clear picture of the trade-off between expressiveness and 'computational realisability' within the hierarchy. We demonstrate how different combining principles as well as spatial and temporal primitives can produce NP-, PSPACE-, EXPSPACE-, 2EXPSPACE-complete, and even undecidable spatio-temporal logics out of components that are at most NP- or PSPACE-complete.
引用
收藏
页码:167 / 243
页数:77
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