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» Hypothetical Temporal Reasoning in Databases
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TIME
2003
IEEE
15 years 3 months ago
A Novel Approach to Model NOW in Temporal Databases
In bitemporal databases, current facts and transaction states are modelled using a special value to represent the current time (such as a minimum or maximum timestamp or NULL). Pr...
Bela Stantic, John Thornton, Abdul Sattar
DKE
2006
93views more  DKE 2006»
14 years 9 months ago
The ramification problem in temporal databases: Changing beliefs about the past
In this paper we study the ramification problem in the setting of temporal databases. Standard solutions from the literature on reasoning about action are inadequate because they ...
Nikos Papadakis, Grigoris Antoniou, Dimitris Plexo...
IJIS
2010
110views more  IJIS 2010»
14 years 7 months ago
The ramification problem in temporal databases: Concurrent execution
In this paper we study the ramification problem in the setting of temporal databases. Standard solutions from the literature on reasoning about action are inadequate because they ...
Nikos Papadakis, Dimitris Plexousakis, Grigoris An...
TIME
2006
IEEE
15 years 3 months ago
k-Anonymity in Databases with Timestamped Data
In this paper we extend the notion of k-anonymity in the context of databases with timestamped information in order to naturally define k-anonymous views of temporal data. We als...
Sergio Mascetti, Claudio Bettini, Xiaoyang Sean Wa...
SSD
2001
Springer
122views Database» more  SSD 2001»
15 years 2 months ago
Calendars, Time Granularities, and Automata
The notion of time granularity comes into play in a variety of problems involving time representation and management in database applications, including temporal database design, t...
Ugo Dal Lago, Angelo Montanari