Dense time logic programming
DSpace at IIT Bombay
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Title |
Dense time logic programming
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Creator |
AHMED, M
VENKATESH, G |
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Description |
In this paper, we describe a dense temporal logic programming (DTLP) framework based on infinite binary trees called omega trees. We then look at an important subset of omega trees called ordinal trees that represent only meaningful dense time models. Ordinal trees have the properties of stability and recurrence, which allow them to be represented finitely. The finite representations called ordinal structures can be used as temporal data structures and its nodes can be labelled with formulae, giving us the basis for modeling temporally located information. In this paper, we label ordinal structure nodes with Prolog clauses to get temporal horn cla uses that represent temporal facts, rules and queries. Temporal resolution tries to prove temporal queries from a set of temporal facts and rules using a process called aligning which provides the counterpart of the conventional unification algorithm. Aligning restructures ordinal trees to facilitate the transfer of temporal information between them. We present theoretical results to show that aligning is computable, and that the procedures for aligning and resolution are correct. (C) 1996 Academic Press Limited.
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Publisher |
ACADEMIC PRESS LTD
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Date |
2011-07-12T20:31:03Z
2011-12-26T13:02:45Z 2011-12-27T05:49:37Z 2011-07-12T20:31:03Z 2011-12-26T13:02:45Z 2011-12-27T05:49:37Z 1996 |
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Type |
Article
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Identifier |
JOURNAL OF SYMBOLIC COMPUTATION, 22(5-6), 585-613
0747-7171 http://dx.doi.org/10.1006/jsco.1996.0067 http://dspace.library.iitb.ac.in/xmlui/handle/10054/3526 http://hdl.handle.net/10054/3526 |
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Language |
en
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