Valid-time indeterminacy in temporal relational databases: A family of data models

Luca Anselma, Paolo Terenziani, Richard T. Snodgrass

Risultato della ricerca: Capitolo in libro/report/atti di convegnoContributo a conferenzapeer review

Abstract

Valid-time indeterminacy concerns not knowing exactly when a fact holds in the modeled reality. In this paper, we first propose a reference approach (data model and algebra) in which all possible temporal scenarios induced by valid-time indeterminacy can be extensionally modeled. We then specify a family of sixteen more compact representational data models. We demonstrate their correctness with respect to the reference approach and analyze several properties, including their data expressiveness and correctness with respect to the reference approach. Finally, we compare these compact models along several relevant dimensions.

Lingua originaleInglese
Titolo della pubblicazione ospiteProceedings - 17th International Symposium on Temporal Representation and Reasoning, TIME 2010
Pagine139-145
Numero di pagine7
DOI
Stato di pubblicazionePubblicato - 2010
Evento17th International Symposium on Temporal Representation and Reasoning, TIME 2010 - Paris, France
Durata: 6 set 20108 set 2010

Serie di pubblicazioni

NomeProceedings - 17th International Symposium on Temporal Representation and Reasoning, TIME 2010

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???event.eventtypes.event.conference???17th International Symposium on Temporal Representation and Reasoning, TIME 2010
Paese/TerritorioFrance
CittàParis
Periodo6/09/108/09/10

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