4. The method of claim 1 , wherein the user interest profile comprises a personalization degree, wherein the ranking score is based at least in part on the personalization degree.
4. The method of claim 1 , wherein the user interest profile comprises a personalization degree, wherein the ranking score is based at least in part on the personalization degree. 5. The method of claim 4 , further comprising: receiving a set of feedback information from the user associated with the subset of search results that have been sent to the user; and updating a weight associated with the personalization degree based on the set of feedback that has been received.