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Summary: 1
Abstract
In this paper, we propose a framework for representing and reasoning about qualitative
and quantitative temporal constraints about periodic events. In particular our contribution
is two-folded: (i) we provide a formalism to deal with both qualitative and quantitative
"periodicity-dependent" constraints between repeated events, considering also user-
defined periodicities; (ii) we propose an intensional approach to temporal reasoning,
which is based on the operations of intersection and composition. Such a comprehensive
approach to the best of our knowledge represents an innovative contribution, which
integrates and extends results from both the Artificial Intelligence and the Temporal Da-
tabases literature.
1 Introduction
Temporal representation and temporal reasoning are fundamental issues within the Artificial In-
telligence (henceforth, AI) communities, since they play a central role in many "intelligent" ac-
tivities. Starting from the early 80's, many Artificial Intelligence researchers took interest into
An intensional approach to
qualitative and quantitative periodicity-dependent temporal constraints
Luca Anselma°, Stefania Montani*, Paolo Terenziani*
°DI, Universitą di Torino, Corso Svizzera 185, Torino, Italy
anselma@di.unito.it
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