A method for ranking entities with respect to a tag for targeted advertisement is provided. For each entity to be ranked, a first score is calculated, which indicates the level of uniqueness the tag is to the entity. For each entity to be ranked, a second score is calculated, which indicates the number...http://www.google.com.hk/patents/US20100185509?utm_source=gb-gplus-share專利 US20100185509 - INTEREST-BASED RANKING SYSTEM FOR TARGETED MARKETING
