Interpreting keyword queries over web knowledge bases
Jeffrey Pound, Alexander K. Hudek, Ihab F. Ilyas, Grant Weddell · 2012
Many keyword queries issued to Web search engines target information about real world entities, and interpreting these queries over Web knowledge bases can often enable the search system to provide exact answers to queries. Equally important is the problem of detecting when the reference knowledge base is not capable of answering the keyword query, due to lack of domain coverage.