{"id":161587,"date":"2011-10-01T00:00:00","date_gmt":"2011-10-01T00:00:00","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/msr-research-item\/efficient-query-rewrite-for-structured-web-queries\/"},"modified":"2018-10-16T22:10:49","modified_gmt":"2018-10-17T05:10:49","slug":"efficient-query-rewrite-for-structured-web-queries","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/efficient-query-rewrite-for-structured-web-queries\/","title":{"rendered":"Efficient Query Rewrite for Structured Web Queries"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Web search engines incorporate results from structured data sources to answer semantically rich user queries, i.e. \u2018Samsung 50 inch led tv\u2019 can be answered from a table of television data. However, users are not domain experts and quite often enter values that do not match precisely the underlying data, so a literal execution will return zero results. A search engine would prefer to return at least a minimum number of results as close to the original query as possible while providing a time-bound execution guarantee. In this paper, we formalize these requirements, show the problem is NP-Hard and present approximation algorithms that produce rewrites that work in practice. We empirically validate our algorithms on large-scale data from a major search engine.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Web search engines incorporate results from structured data sources to answer semantically rich user queries, i.e. \u2018Samsung 50 inch led tv\u2019 can be answered from a table of television data. However, users are not domain experts and quite often enter values that do not match precisely the underlying data, so a literal execution will return [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"ACM","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"ACM Conference on Information and Knowledge Management (CIKM)","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"ACM Conference on Information and Knowledge Management 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