Security deciding in publishing views based on entropy
Publishing views have been a convenient tool for data exchange. But as the increasing of data exchange technology, the security in publishing views has been paid more attention to. Inspired by the knowledge of probabilistic database, this paper erects a probability model of security deciding in publishing views, and it gives the formularized definition of publishing views, private information, prior knowledge and so on. Then a new deciding theorem based on entropy is provided, and introduce techniques for measuring the magnitude of information disclosures in publishing view. At last it is proved by the experiment.