Abstract of FKI-158-91

Document-Name:  FKI-158-91 (not available via ftp)
Title:          Action-Oriented Learning in Classifier Systems
Authors:	Gerhard Weiss
Revision-Date:  1991
Category:       Technical Report (Forschungsberichte Künstliche Intelligenz)
Abstract:       This paper explores an action-oriented perspective of learning
                in classifier systems. Three variants of the bucket brigade 
                (BB) and the profit-sharing plan (PSP) are presented that 
                operate on the action level in the sense that their bidding, 
                firing and strength-modification processes are guided by the
                actions of the classifiers:  the action-oriented bucket 
                brigade 1 (ABB1), the action-oriented bucket brigade 2 (ABB2),
                and the action-oriented profit-sharing plan (APSP). The results
                reported in this paper indicate that the action-oriented 
                perspective leads to an improved learning in classifier 
                systems. Section 1 gives a brief introduction to classifier 
                systems and motivates an action-oriented perspective of 
                learning. Sections 2, 3 and 4 describe the ABB1, the ABB2 and 
                the APSP, respectively, and compare them with the BB and the 
                PSP. Section 5 shows an empirical analysis of the action-
                oriented algorithms. Section 6 concludes with a brief summary 
                of the reported results and some general considerations on 
                learning in adaptive multi--component systems.
Keywords:       Classifier systems, bucket brigade, profit sharing plan, 
                estimated goal relevance, action--oriented learning
Size:           19 pages
Language:       English
ISSN:           0941-6358
Copyright:      The ``Forschungsberichte Künstliche Intelligenz''
                series includes primarily preliminary publications,
                specialized partial results, and supplementary
                material. In the interest of a subsequent final
                publication these reports should not be copied. All
                rights and the responsability for the contents of the
                report are with the authors, which would appreciate
                critical comments.



Gerhard Weiss