Yahoo patent applications published on 31 March 2011

6 US patent applications published on 31 March 2011 and assigned to Yahoo

1 20110078766 SYSTEM AND METHOD FOR BOOKMARKING AND TAGGING A CONTENT ITEM
2 20110078269 EMPLOYING PIXEL DENSITY TO DETECT A SPAM IMAGE
3 20110078147 SEGMENTATION OF SEARCH TOPICS IN QUERY LOGS
4 20110078027 METHOD AND SYSTEM FOR COMPARING ONLINE ADVERTISING PRODUCTS
5 20110078013 RATE-BASED AUCTION-FORMAT ONLINE ADVERTISEMENT MANAGEMENT
6 20110077935 APPARATUS AND METHODS FOR USER GENERATED TRANSLATION