In a temporal database a specific semantics is usually intended by the database designer regarding how the values of certain attributes evolve over time and how these values change when considered in terms of different time granularities. In this paper we show how this semantics can be exploited to compress the original database. Differently from traditional compression techniques, queries can be evaluated directly against the compressed database.
Semantic compression of temporal data / C. Bettini - In: WAIM '01 Proceedings of the Second International Conference on Advances in Web-Age Information Management[s.l] : Springer-Verlag London, UK, 2001. - ISBN 3-540-42298-6. - pp. 267-278
Semantic compression of temporal data
C. BettiniPrimo
2001
Abstract
In a temporal database a specific semantics is usually intended by the database designer regarding how the values of certain attributes evolve over time and how these values change when considered in terms of different time granularities. In this paper we show how this semantics can be exploited to compress the original database. Differently from traditional compression techniques, queries can be evaluated directly against the compressed database.
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