A Bayesian approach for on-line max and min auditing

  • Authors:
  • Gerardo Canfora;Bice Cavallo

  • Affiliations:
  • University of Sannio;University of Sannio

  • Venue:
  • PAIS '08 Proceedings of the 2008 international workshop on Privacy and anonymity in information society
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

In this paper we consider the on-line max and min query auditing problem: given a private association between fields in a data set, a sequence of max and min queries that have already been posed about the data, their corresponding answers and a new query, deny the answer if a private information is inferred or give the true answer otherwise. We give a probabilistic definition of privacy and demonstrate that max and min queries, without "no duplicates" assumption, can be audited by means of a Bayesian network. Moreover, we show how our auditing approach is able to manage user prior-knowledge.