Qualitative and Quantitative Temporal Reasoning with Points and Durations (An Extended Abstract).
Rattana Wetprasit, Abdul Rahman Sattar · 1998
) Rattana Wetprasit and Abdul Sattar Knowledge Representation and Reasoning Unit School of Computing and Information Technology Griffith University, Nathan, QLD 4111 Australia frattana,[email protected] Abstract This paper extends the point duration network (PDN) [3] to represent both qualitative and quantitative information about point events. An algorithm to solve reasoning tasks such as finding a consistent scenario with minimal domains is briefly described. We also propose further extension to capture quantitative information about durations. 1. Introduction Recently, a point based bi-network is proposed to represent qualitative relationships between point events and durations---called point duration network (PDN) [3]. In this framework, a duration represents a time distance between two point events. The basic relations between two durations are: f!; ?; =g. Let us consider the example proposed in [2] with additional qualitative information about durations and quantitative ...