EVALUATION ON PRIVACY AND EFFECTIVE PERSONALIZED SEARCH ENGINE USING NOVEL KNN AND ECC

To protect user privacy in profile-based PWS, propose a PWS framework called UPS that can adaptively generalize profiles by queries while respecting user specified privacy requirements. It has to consider two contradicting effects during the search process. First, it attempts to improve the search quality with the personalization utility of the user profile. Next, it needs to hide the privacy contents existing in the user profile to place the privacy risk under control