A conceptual space is a geometric structure that represents a number of quality dimensions, which denote basic features by which concepts and objects can be compared, such as weight, color, taste, temperature, pitch, and the three ordinary spatial dimensions.:4 In a conceptual space, points denote objects, and regions denote concepts. The theory of conceptual spaces is a theory about concept learning first proposed by Peter Gärdenfors. It is motivated by notions such as conceptual similarity and prototype theory.
The theory also puts forward the notion that natural categories are convex regions in conceptual spaces.:5 In that if and are elements of a category, and if is between and , then is also likely to belong to the category. The notion of concept convexity allow the interpretation of the focal points of regions as category prototypes. In the more general formulations of the theory, concepts are defined in terms conceptual similarity to their prototypes.
- Zenker, Frank; Gärdenfors, Peter, eds. (2015). Applications of conceptual spaces: the case for geometric knowledge representation. Synthese library: studies in epistemology, logic, methodology, and philosophy of science. 359. Cham: Springer-Verlag. ISBN 3319150200. OCLC 907771045.
- Kriegeskorte, N., & Kievit, R. A. (2013). Representational geometry: Integrating cognition, computation, and the brain. Trends in Cognitive Sciences, 17(8), 401–412. http://doi.org/10.1016/j.tics.2013.06.007
- Gärdenfors, Peter (2000). Conceptual spaces: the geometry of thought. Cambridge, Massachusetts: MIT Press. ISBN 0262071991. OCLC 42389577.
- Gärdenfors, Peter (2014). Geometry of meaning: semantics based on conceptual spaces. Cambridge, Massachusetts: MIT Press. ISBN 9780262026789. OCLC 854541601.
- Foo, N. (2001). Conceptual Spaces—The Geometry of Thought. AI Magazine, 22(1), 139–140. Retrieved from https://www.aaai.org/ojs/index.php/aimagazine/article/viewPDFInterstitial/1554/1453%5Cnpapers2://publication/uuid/4FC4A7BC-BD5B-4448-8B19-B42DCA4480EE
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