Click distance determination

Click fraud prevention system and method

Cloaking detection utilizing popularity and market value

Closed-loop predicate analysis

Cluster communication manager

Cluster-based management of collections of items

Clustered query support for a database query engine

Clustering aggregator for RSS feeds

Clustering data with constraints

Clustering-based interest computation

Co-clustering objects of heterogeneous types

Collaborative content evaluation

Collaborative modeling environment

Collaborative workspace context information filtering

Collecting and presenting temporal-based action information

Collection and organization of actual search results data...

Collective ranking of digital content

Combination of collaborative filtering and cliprank for...

Combining domain-tuned search systems

Combining spectral and probabilistic clustering