Question Answering Techniques for the World Wide Web
Jimmy Lin, Boris Katz · 2003
Question answering systems have become increasingly popular because they deliver users short, succinct answers instead of overloading them with a large number of irrelevant documents. The vast amount of information readily available on the World Wide Web presents new opportunities and challenges for question answering. In order for question answering systems to benefit from this vast store of useful knowledge, they must cope with large volumes of useless data.