| 摘要 |
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining whether to provide a factual answer to a user's query. In one aspect, a method includes obtaining a set of query patterns associated with a particular fact. A subset of natural language query patterns can be identified from the set of query patterns. A likelihood that a query corresponding to at least one of the query patterns from the set of query patterns is a fact-seeking query can be determined based at least in part on comparing a first query count associated with the subset of natural language query patterns with a second query count associated with the set of query patterns. The likelihood can be provided as a signal for ranking search results. |
| 主权项 |
1. A computer-implemented method comprising:
obtaining, by a search engine, a set of query patterns that are associated with searching for a particular fact, the set of query patterns including a first subset of one or more query patterns that are expressed in a natural language format, and a second subset of one or more query patterns that are not expressed in a natural language format; determining, by the search engine, (i) a first quantity of query patterns that occur in the set of query patterns that are associated with searching for the particular fact, and (ii) a second quantity of query patterns that occur in the first subset of query patterns that are expressed in a natural language format; determining, by the search engine, a likelihood that a particular query is a fact-seeking query based at least on comparing the first quantity and the second quantity, wherein a fact-seeking query is a query for which a factual answer is presented adjacent to one or more search results, in an answer area of a search results page that is generated in response to the query; and using, by the search engine, the likelihood as a signal for ranking search results. |
