Filtering contents using a learning mechanism is described herein. When a request to search for a content in a community is received, a search is performed for the content at one or more nodes of the community. Information received from the one or more nodes is filtered based on persona information of...http://www.google.com.hk/patents/US20030191753?utm_source=gb-gplus-share專利 US20030191753 - Filtering contents using a learning mechanism
