A critical problem for practical KR is dealing with relationships that change over time. This problem is compounded by representation languages such as OWL that are biased towards binary relations, even when the relationships that vary with time are binary. We discuss several approaches to this problem in OWL, and focus on the advantages of a four-dimensionalist (perdurantist) solution, which allows us to use more of the expressive power of the language.
By: Christopher Welty; Richard Fikes; Selene Makarios
Published in: RC23755 in 2005
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