A modal perspective on path constraints

被引:22
作者
Alechina, N [1 ]
Demri, S
de Rijke, M
机构
[1] Univ Nottingham, Sch Comp Sci & IT, Nottingham NG8 1BB, England
[2] ENS Cachan, CNRS, UMR 8643, Lab Specificat & Verificat, F-94235 Cachan, France
[3] Univ Amsterdam, ILLC, Language & Inference Technol Grp, NL-1018 WV Amsterdam, Netherlands
基金
英国工程与自然科学研究理事会;
关键词
semistructured data; path constraints; modal logic; automata theory;
D O I
10.1093/logcom/13.6.939
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Several classes of path constraints for semistructured data are analysed and a number of decidability and complexity results proved for such constraints. While some of these decidability results were known before, it is believed that the improved complexity bounds are new. Proofs are based on techniques from modal logic and automata theory. This modal logic perspective sheds additional light on the reasons for previously known decidability and complexity results.
引用
收藏
页码:939 / 956
页数:18
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