LIPIcs.ICLP.2010.212.pdf
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Timed Definite Clause Omega-Grammars
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Technical Communications of the 26th International Conference on Logic Programming (ICLP 2010)
Series: Leibniz International Proceedings in Informatics (LIPIcs)
Conference: International Conference on Logic Programming (ICLP) - License:
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported license
- Publication Date: 2010-06-25
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Neda Saeedloei and Gopal Gupta. Timed Definite Clause Omega-Grammars. In Technical Communications of the 26th International Conference on Logic Programming. Leibniz International Proceedings in Informatics (LIPIcs), Volume 7, pp. 212-221, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)
https://doi.org/10.4230/LIPIcs.ICLP.2010.212
Abstract
We propose timed context-free grammars (TCFGs) and show how parsers for such grammars can be developed using definite clause grammars (DCGs) coupled with constraints over reals (CLP(R)). Timed context-free grammars describe timed context-free languages (TCFLs). We next extend timed context-free grammars to timed context-free omega-grammars (omega-TCFGs for brevity) and incorporate co-inductive logic programming in DCGs to obtain parsers for them. Timed context-free omega-grammars describe timed context-free languages containing infinite-sized words, and are a generalization of timed omega-regular languages recognized by timed automata. We show a practical application of omega-TCFGs to the well-known generalized railroad crossing problem.
Subject Classification
Keywords
- Constraint Logic Programming over reals
- Co-induction
- Context-Free Grammars
- Omega-Grammars
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