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Science 28 February 1986:
Vol. 231. no. 4741, pp. 957 - 963
DOI: 10.1126/science.231.4741.957
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Articles

Knowledge-Based Systems

RANDALL DAVIS 1

1 Associate professor at the Sloan School of Management at Massachusetts Institute of Technology and a member of the MIT Artificial Intelligence Laboratory, Cambridge 02139.

First developed two decades ago, knowledge-based systems have seen widespread application in recent years. While performance has been a strong focus of attention, building such systems has also expanded our conception of a computer program from a black box providing an answer to something capable of explaining its answers, acquiring new knowledge, and transferring knowledge to students. These abilities derive from distinguishing clearly what the program knows from how that knowledge will be used, making it possible to use the same knowledge in different ways.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)