Temporal Reasoning with Qualitative and Quantitative Information about Points and Durations

A duration is known as a time distance between twopoint events. Thisrelationship has recently been formalized as the point duration network (PDN)in (Navarrete &Marin 1997). However, onlythe qualitative informationaboutpoints and durations wasconsidered. This paper presents an augmentedpoint duration network (APDN) represent bothqualitative andquantitative information about point events. Wefurther extend APDN to capture quantitative information about durations. Weproposealgorithmsto solve reasoning tasks suchas determining satisfiability of the network, and finding a consistent scenario with minimal domains. Thus, wepresent an expressively richer framework than the existing onesto handleboth qualitative andquantitative information aboutpoints as well as durations.

Authors

• Rattana Wetprasit Abdul Sattar

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