Regensburg 2004 – wissenschaftliches Programm
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AKSOE: Physik sozio-ökonomischer Systeme
AKSOE 4: Soziale Systeme und Entscheidungsmodelle I
AKSOE 4.5: Vortrag
Dienstag, 9. März 2004, 12:00–12:30, H8
Modelling the role of competencies in a complex problem solving process - a new model for flexibility — •Andrea Scharnhorst1 and Werner Ebeling2 — 1KNAW, NIWI, Joan Muyskenweg 25, 1090HC Amsterdam — 2HUB, Inst. f. Physik, Newtonstrasse 15, 12489 Berlin
Learning is both a process which takes place in individuals and in groups. In this paper we explore to which extend evolutionary models about the collective search of groups (or populations) in a multi-dimensional abstract problem space can be used to describe the role of individual competencies. In the model the formation of a group of individuals sharing a similar problem representation can be understood as effort of a collective search process. Additional to earlier models of search processes in complex fitness landscapes we assume that the group formation process (the occupation density) now also depends on the coordinates and the velocity in the problem space. The new model makes use of the formalism of active Brownian particles developed recently. The velocity-dependence means that the fitness of the individuals depends on the speed with which problem representations can be changed individually. We call this feature the flexibility of the individuals to develop alternative problem representations. We discuss the application of such types of models for learning and decision making processes in social systems.