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Abstract: Granularity is an integral feature of temporal data. For instance, a person's age is commonly given to the granularity of years and the time of their next airline flight to the granularity of minutes. A granularity creates a discrete image, in terms of granules, of a (possibly continuous) time-line. We present a formal model for granularity in temporal operations that is integrated with temporal indeterminacy, or "don't know when" information. We also minimally extend the syntax and semantics... (Update)
Context of citations to this paper: More
...not closed for union. The lattice of granularities is infinite. Other studies often assume a finite partial order of granularities (Dyreson et al. 1998), corresponding to real life calendars. Granspecs A granspec is an ordered pair of finite strings over the alphabet f ; t; og,...
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BibTeX entry: (Update)
Dyreson, C. E.; Evans, W. S.; Lin, H.; and Snodgrass, R. T. 1998. Efficiently supporting temporal granularities. http://citeseer.ist.psu.edu/article/dyreson98efficiently.html More
@techreport{ dyreson95efficiently,
author = "C.~E. Dyreson and R.~T. Snodgrass and M. Freiman",
title = "Efficiently Supporting Temporal Granularities in a {DBMS}",
number = "TR 95/07",
year = "1995",
url = "citeseer.ist.psu.edu/article/dyreson98efficiently.html" }
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