Yahoo patents granted on 22 February 2011

11 US patents granted on 22 February 2011 and assigned to Yahoo

1 7,895,284 Social news ranking using gossip distance
2 7,895,235 Extracting semantic relations from query logs
3 7,895,206 Search query categrization into verticals
4 7,895,198 Gradient based optimization of a ranking measure
5 7,895,177 Enabling searching of user ratings and reviews using user profile location, and social networks
6 7,895,175 Client-side federated search
7 7,895,172 System and method for writing data dependent upon multiple reads in a distributed database
8 7,895,149 System for opinion reconciliation
9 7,895,077 Predicting inventory availability and prioritizing the serving of competing advertisements based on contract value
10 7,895,049 Dynamic representation of group activity through reactive personas
11 7,893,847 Real time detection of parking space availability