System And Method For Identifying Relevant Search Results Via An Index

摘要

A system and method for identifying relevant search results via an index is provided. A search query is received. A semantic representation of query substructures and a list of key terms is generated for the query. Each key term includes a term in the search query or a term related to the query. An inverted index having key terms each associated with a semantic representation and a link to a source reference is accessed. The inverted index is queried using a subset of key terms. A result set for the subset key terms is identified within the inverted index. Each result is scored and a subset of the result set is identified as retrieval candidates based on the scoring. One or more of the retrieval candidates are selected based on a comparison of the query semantic representation with the semantic representations for the retrieval candidates.

主权项

1. A system for identifying relevant search results via an index, comprising:
a query module to receive a search query and to generate a semantic representation for the query comprising a plurality of substructures as a semantic analysis of the search query and a list of key terms, wherein the key terms each comprise a term in the search query or a term related to one of the terms in the search query; an inverted index comprising a set of key terms each associated with a semantic representation and a link to a source reference; a candidate module to identify retrieval candidates for comparing the associated semantic representations with the semantic representation of the search query, comprising:
a term selection module to select a subset of the key terms from the search query and to query the inverted index with the key terms in the subset;a result module to identify within the inverted index a result set for each of the key terms in the subset; anda scoring module to score each of the results in the set and to identify a subset of the result sets as the retrieval candidates based on the scoring; and a candidate selection module to select one or more of the retrieval candidates based on a comparison of the semantic representation of the search query with the semantic representations for each of the retrieval candidates.