During the late 1970s, various research workers at Stanford University and Xerox PARC developed a set of INTERLISP programs which embodied many of the ideas of Minsky’s frames <77>, together with facilities for matching structures against each other and for controlling multi-processing. Although “KRL” stood for “Knowledge Representation Language”, the software did not stabilise into a single programming language in the normal sense, and remained as a continually evolving research tool within a small community. KRL has been superceded by LOOPS <131>.
- [Bobrow and Winograd 77]Bobrow, D.G. and Winograd, T. An overview of KRL. a knowledge representation language. Cognitive Science 1, 1977.Google Scholar