| 摘要 |
Described is extracting structured information from web pages for use in directly answering queries with data items from the structured data. Users' post-search browsing behaviors (search trails) are treated as implicit labels as to the relevance between web content and user queries, and are used to determine wrappers for extracting structured information. In one implementation, a system identifies websites from web search logs, builds wrappers from users' search trails, filters out bad wrappers (from inconsistent user clicks), and combines structured information from different web sites, e.g., for each query. |
