FAWCETT@RED.RUTGERS.EDU (Tom Fawcett) (06/23/86)
The summer machine learning discussion group meets Tuesdays at 11 in room 423. This week John Bresina will give a talk on "Chunking and XAPS3". The abstract follows. [...] In this talk I discuss the chunking theory of learning, and in particular how this theory is realized in the XAPS3 production system architecture. The talk is based on Paul S. Rosenbloom's Ph.D. thesis, "The Chunking of Goal Hierarchies: A Model of Practice and Stimulus-Response Compatibility" [Carnegie-Mellon, 1983], for which Allen Newell was the advisor. First the chunking theory of learning is described and the desired behavioral aspects of a chunking mechanism are summarized. I then present the architectural constraints that an implementation must satisfy in order to exhibit this desired behavior. Next the XAPS3 production system architecture is described, followed by a detailed look at the implementation of the chunking theory within XAPS3. In conclusion I present a brief critique of this implementation as well as some suggestions for extending and improving it. -------