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- Newsgroups: comp.lang.prolog
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!ira.uka.de!Germany.EU.net!ecrc!acrab60!thom
- From: thom@ecrc.de (Thom Fruehwirth)
- Subject: Re: Definitive temporal logic source
- Message-ID: <1993Jan25.084436.13275@ecrc.de>
- Sender: news@ecrc.de
- Reply-To: thom@ecrc.de
- Organization: European Computer-Industry Research Centre GmbH.
- References: <1993Jan23.114811.28054@city.cs>
- Date: Mon, 25 Jan 1993 08:44:36 GMT
- Lines: 28
-
- The foolowing paper describes an implemention of various kinds of
- temporal constraints with constraint handling rules (were named
- "constraint simplification rules" before) on top of ECRC's
- Eclipse Prolog.
-
- Temporal Reasoning with Constraint Handling Rules
- Thom Fruehwirth
-
- This paper describes an application of constraint handling rules
- to temporal reasoning and illustrates the conceptual simplicity
- and flexibility of the approach.
- Following the framework of Meiri (AAAI 91), temporal reasoning
- is viewed as a constraint satisfaction problem about location of
- temporal variables along the time line. Temporal variables may
- be points or intervals and temporal constraints are disjunctions
- of qualitative or quantitative primitive binary temporal
- relations.
- We use constraint logic programming augmented with constraint
- handling rules to define a incremental, flexible general purpose
- solver for disjunctive binary constraints based on path
- consistency and backtrack search. We show how this approach
- supports rapid prototyping and experimentation with various
- approaches and variants to temporal reasoning and constraint
- satisfaction techniques in general.
-
-
- thom
-
-