Yahoo patents granted on 28 December 2010

7 US patents granted on 28 December 2010 and assigned to Yahoo

1 7,860,993 Streaming media content delivery system and method for delivering streaming content
2 7,860,878 Prioritizing media assets for publication
3 7,860,870 Detection of abnormal user click activity in a search results page
4 7,860,865 System of a hierarchy of servers for query processing of column chunks in a distributed column chunk data store
5 7,860,862 Recommendation diversity
6 7,860,754 System and method for optimizing the reserve price and allocation of web page placements in an online keyword auction using generalized trade reduction
7 7,860,308 Approach for near duplicate image detection