Yahoo patent applications published on 19 January 2012

5 US patent applications published on 19 January 2012 and assigned to Yahoo

1 20120016877 CLUSTERING OF SEARCH RESULTS
2 20120016729 TARGETED DISTRIBUTION OF ELECTRONIC COUPONS
3 20120016642 CONTEXTUAL-BANDIT APPROACH TO PERSONALIZED NEWS ARTICLE RECOMMENDATION
4 20120015668 SYSTEM AND METHOD FOR PROXIMITY AREA NETWORKING FOR SELECTION OF MESSAGING
5 20120012278 COLD ROW ENCAPSULATION FOR SERVER FARM COOLING SYSTEM