Handling fuzzy temporal constraints in a planning environment |
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Authors: | Marc de la Asunción Luis Castillo Juan Fernández-Olivares Oscar García-Pérez Antonio González Francisco Palao |
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Institution: | (1) Dpto. Ciencias de la Computación e Inteligencia Artificial, ETSI Informática, Universidad de Granada, 18071 Granada, Spain |
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Abstract: | An interleaved integration of the planning and scheduling process is presented with the idea of including soft temporal constraints
in a partial order planner that is being used as the core module of an intelligent decision support system for the design
forest fire fighting plans. These soft temporal constraints have been defined through fuzzy sets. This representation allows
us a flexible representation and handling of temporal information. The scheduler model consists of a fuzzy temporal constraints
network whose main goal is the consistency checking of the network associated to each partial order plan. Moreover, we present
a model of estimating this consistency, and show the monitoring and rescheduling capabilities of the system. The resulting
approach is able to tackle problems with ill defined knowledge, to obtain plans that are approximately consistent and to adapt
the execution of plans to unexpected delays.
This work has been partially supported under the project MCyT TIC2002-04146-C05-2 and the contract NET033957 with the Andalusian
Regional Government. |
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