In essence, a Jeopardy!-playing application posed two different problems: understanding natural language (NL) so as to be able to identify the right question and then searching a huge database of general information for an answer that fit the question. Searching a huge database quickly was a more-or-less physical problem, but parsing general questions in English and then determining which of several possible answers was the right match for the question being asked were serious cognitive problems.
Advisor
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