OPTIMIST: A new conflict resolution algorithm for ACT-R.

Belavkin, Roman V. and Ritter, Frank E (2004) OPTIMIST: A new conflict resolution algorithm for ACT-R. In: Sixth International Conference on Cognitive Modelling, Mahwah, NJ.

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Abstract

Several studies have suggested recently that a more dynamic conflict resolution mechanism in the ACT-R cognitive architecture (Anderson & Lebiere, 1998) could improve the decision-making behaviour of cognitive models. This part of ACT-R theory is revisited and a new solution is proposed. The new algorithm (OPTIMIST) has been implemented as an overlay to the ACT-R architecture, and can be used as an alternative mechanism. The operation of the new algorithm is tested in a model of the classical Yerkes and Dodson experiement of animals' learning. When OPTIMIST is used, the resulting model fits the data better than the previous model (e.g. R2 (R squared) increases from .85 to .93 in one example).

Item Type:Conference or Workshop Item (Paper)
Research Areas:School of Science and Technology > Computer Science
School of Science and Technology > Computer Science > Artificial Intelligence group
ID Code:8
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Deposited On:08 Sep 2008 12:40
Last Modified:08 Oct 2014 22:37

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