Prediction and information retrieval for intrinsically diverse sessions

摘要

Various technologies described herein pertain to predicting intrinsically diverse sessions and retrieving information for such intrinsically diverse sessions. Search results retrieved by a search engine responsive to executing a query are received. A query classifier can be employed to determine whether the query is intrinsically diverse or not intrinsically diverse based on one or more features of the query and session interaction properties. The query is intrinsically diverse when included in an intrinsically diverse session directed towards a task, where the query and disparate queries included in the intrinsically diverse session are directed towards respective subtasks of the task. An objective function can be evaluated based at least upon the query to compute an optimized value when the query is determined to be intrinsically diverse. The search results can be presented on a display screen according to the optimized value when the query is determined to be intrinsically diverse.

主权项

1. A method of presenting search results returned responsive to executing a query, comprising:
determining, by employing a query classifier, whether the query is intrinsically diverse or not intrinsically diverse, wherein the query is intrinsically diverse when included in an intrinsically diverse session, wherein the intrinsically diverse session is directed towards a task, and wherein queries included in the intrinsically diverse session are directed towards respective subtasks of the task; receiving the search results retrieved by a search engine responsive to executing the query, wherein related queries correspond to the search results; evaluating an objective function to compute an optimized value in response to the query being determined to be intrinsically diverse, wherein:
the objective function is based on relevance of differing search results to the query, the differing search results returned responsive to the related queries; andthe objective function is based on redundancy between the related queries; and controlling presentation of the search results on a display screen according to the optimized value when the query is determined to be intrinsically diverse.