Wal-mart Stores, Inc.

Verity, Inc.

Michel A Tourn

Digvijay Singh Lamba

Wang Chee Lam

Jianchang Mao

Rajat Mukherjee

Prabhakar Raghavan

Mani Abrol

Determining one or more concepts associated with a query is disclosed. A query is received. A list of concepts and associated scores is received. The concepts fit within a concept hierarchy. A density function is used to evaluate the received concepts. One or more concepts are associated with the query based at least in part on the results of the density function.

Determining concepts associated with a query

A method of ranking search results includes producing a relevance score for a document in view of a query. A similarity score is calculated for the query utilizing a feature vector that characterizes attributes and query words associated with the document. A rank value is assigned to the document based upon the relevance score and the similarity score.

Apparatus and method for adaptively ranking search results

Growing community of inventors

Mountain View, CA, United States of America

Michel A Tourn