An Interval Algebra for Indeterminate Time
Wes Cowley, Dimitris Plexousakis · 2000
Temporal indeterminacy is an inherent problem which arises when capturing and manipulating temporal data in many ap-plication areas. As such, representation and manipulation of timestamps with indeterminacy is a requirement for these ap-plications. We present an extension of Allen’s thirteen in-terval relationships to indeterminate temporal intervals based on a novel representation for indeterminate timestamps. The timestamps can be derived from and translated to interval constraints. We provide a set of simple and useful operators for manipulating both convex and non-convex indeterminate intervals represented by these timestamps.