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dc.contributor Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
dc.contributor Ministerio de Educación y Ciencia (España)
dc.creator Vila, Lluis
dc.creator Godo, Lluis
dc.date 2007-11-20T15:25:11Z
dc.date 2007-11-20T15:25:11Z
dc.date 1994
dc.date.accessioned 2017-01-31T00:58:51Z
dc.date.available 2017-01-31T00:58:51Z
dc.identifier Mathware and Soft Computing, 1994, 1 (3): 315-334.
dc.identifier 1134-5632
dc.identifier http://hdl.handle.net/10261/2252
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2252
dc.description Temporal Constraint Networks are a well-defined, natural and efficient formalism for representing temporal knowledge based on metric temporal constraints. They support the representation of both metric and some qualitative temporal relations and are provided with efficient algorithms based on CSP techniques. Recently, a generalization based on fuzzy sets has been proposed in order to cope with vagueness in temporal relations. In this paper we generalize some earlier definitions for Fuzzy Temporal Constraint Networks, we identify and define interesting queries in a fuzzy temporal constraint network, an explore a method for efficiently computing them in a specific case. Further analysis of some measures on possibility distributions turns out to be fundamental in order to precisely determine some of these queries. We discuss the advantages and shortcomings of various choices and propose specific alternatives which satisfactorily avoid the problems of previous proposals. The results presented in this paper can be useful in the design of a system for temporal reasoning under uncertainty. for instance, we have applied them to defining a possibilistic temporal logic where approximate and temporal representation and reasoning are consistently combined.
dc.description This work has been partially supported by Spanish MEC grant FPI-PN90 77909683 and by CICYT project ARREL (TIC92-0579-C02-01).
dc.description Peer reviewed
dc.language eng
dc.publisher Universidad Politécnica de Cataluña
dc.rights openAccess
dc.subject Approximate temporal knowledge
dc.subject Fuzzy temporal constraints
dc.subject Degrees of temporal constraint compatibility and entailment
dc.title On fuzzy temporal constraint networks
dc.title Redes de límites temporales difusos
dc.type Artículo


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