Providing book information in response to queries

摘要

Methods, systems, and apparatus, including computer program products are provided for responding to search queries having results that identify books. In one aspect, a search query and multiple web pages that satisfy the search query and have a ranked order as responses to the search query are received. A subset of web pages that are each a reference page for a respective book are selected. A web page is a reference page for a book when the web page includes a reference to the book and satisfies a citation criterion for the book. A book score is assigned to each of the books for which there is at least one reference page in the group of highest ranking web pages. The book scores are used to select one or more of the books. A book reference is generated for each of the books and the book references are provided in response to the search query.

主权项

1. A computer-implemented method comprising:
receiving data indicating web pages that are identified as responsive to a search query; identifying a subset of the web pages that each reference one or more respective books; determining, for each web page in the subset of web pages, a respective citation score for each book referenced by the web page based on content of the web page, wherein the citation score for a book is a measure of relevance of metadata for the book to the content of the web page that references the book; classifying one or more of the web pages of the subset as book-referencing web pages based at least on the citation scores; ranking the books that are referenced by the one or more book-referencing web pages based at least on the citation scores, wherein ranking the books that are referenced by the one or more book-referencing web pages comprises:
determining a relevance score that indicates a measure of relevance of a particular book-referencing web page to the query;determining a book score for a particular book that is referenced by the particular web page based on (i) the relevance score for the particular book-referencing web page, and (ii) the citation score for the particular book that is determined for the particular book-referencing web page; andranking the particular book among the other books that are referenced by the one or more book-referencing web pages using the book score; selecting a subset of the ranked books; and providing, for display, information referencing one or more books of the subset of the ranked books.