作者: Alex Ainslie , Nan Li
DOI:
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摘要: Methods, systems, and apparatus, including computer program products, for personalized query suggestion are disclosed. The utilizes a profile tree constructed using search history associated with user. is hierarchy of nodes representing categories information that the user has previously searched or selected from results. When received user, ranked list related queries can be generated query. Each compared against in tree, relevance score given to based on depth matching node child count node. re-ranked their respective scores. After re-ranking, top-ranked presented as suggestions.