This definition appears somewhat frequently
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Samples in periodicals archive:
START, the world's first Web-based question answering system, has been on-line and continuously operating since December, 1993. It has been developed by Boris Katz...
A Natural Language Question Answering System as a Participant in Human Q&A Portals Tiansi Dong University of Hagen, Germany email@example.com
An Analysis of the AskMSR Question-Answering System Eric Brill, Susan Dumais and Michele Banko Microsoft Research One Microsoft Way Redmond, Wa. 98052
In 2011, IBM's question-answering system Watson won the quiz show "Jeopardy!" by beating reigning champions Brad Rutter and Ken Jennings. The idea of inanimate...