In web search engines privacy protection has become more serious now a days. The main problem of privacy protection in web search is discussed, with a special focus on IP-address based personalized web search. The main goal is to break the linkage between users’ identities and their issued queries so as to prevent privacy breaches. It provides a strong privacy guarantee in web search. The main idea of this privacy model is to protect user’s search activities within a social peer group. Social peer group contains a set of individual users. From search engines perspective, search queries that are issued by users from the same peer group cannot be linked uniquely to individuals within the same group. Experimental results show that our methods achieve high efficiency in practice.

Full text: IJEIR_2069_FINAL.pdf