| 摘要 |
The present invention is directed towards systems, methods and computer program products for clustering a plurality of user history items. According to one embodiment, a method of clustering a plurality of user history items comprises storing a plurality of history items corresponding to a plurality of user search queries and a plurality of user selected items, as well as clustering the history items according to a time-based clustering algorithm and clustering the history items according to a subject matter based clustering algorithm. The clustered history items are displayed on a display device to a user.
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