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 also investigate the problem of obtaining these views. We show that known generalization techniques, despite being applicable under certain conditions, have some limitations, and propose a new generalization algorithm based on the hierarchy of time granularities
k-Anonymity in Databases with Timestamped Data / S. Mascetti, C. Bettini, X.S. Wang, S. Jajodia - In: TIME 2006 / [a cura di] J. Pustajovski, P. Revesz. - Los Alamitos : IEEE Computer Society, 2006. - ISBN 0769526179. - pp. 177-186 (( Intervento presentato al 13. convegno International Symposium on Temporal Representation and Reasoning tenutosi a Budapest (Hungary) nel 2006 [10.1109/TIME.2006.20].
k-Anonymity in Databases with Timestamped Data
S. MascettiPrimo
;C. BettiniSecondo
;
2006
Abstract
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 also investigate the problem of obtaining these views. We show that known generalization techniques, despite being applicable under certain conditions, have some limitations, and propose a new generalization algorithm based on the hierarchy of time granularities
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