In search of abstraction: The varying abstraction model of categorization
نویسندگان
چکیده
منابع مشابه
A Varying Abstraction Model for Categorization
A model is proposed that elegantly unifies the traditional exemplar and prototype models. These two models are extreme cases of the proposed varying abstraction model. The unifying model further makes room for many new intermediate pseudo-exemplar models. A preliminary analysis using Medin and Schaffer’s (1978) 5-4 structure pointed to such an intermediate model that outperformed the prototype ...
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We use the Exemplar-Based Random-Walk model (EBRW) to extend the Varying Abstraction Model (VAM). Unlike the VAM which is designed to account for categorization proportions, this Varying Abstraction-Based Random-Walk (VABRW) model is able to predict categorization response times. The extension is especially useful in situations where response accuracies are not very informative for distinguishi...
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In this paper we propose, instead of the traditional distinction between prototype and exemplar models, a generic model that assumes a continuum between prototypes and exemplars. The model is based on the very successful GCM and an associated prototype model that both assume a representation on continuous dimensions. Abstractions are obtained by taking for each category the centroids of the clu...
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We take a utility-based approach to categorization. We construct generalizations about events and actions by considering losses associated with failing to distinguish among detailed distinctions in a decision model. The utility-based methods transform detailed states of the world into more abstract categories comprised of disjunctions of the states. We show how we can cluster distinctions into ...
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ژورنال
عنوان ژورنال: Psychonomic Bulletin & Review
سال: 2008
ISSN: 1069-9384,1531-5320
DOI: 10.3758/pbr.15.4.732