# conceptual space 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 colour taste temperature pitch and the three ordinary spatial dimensions 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 the notion of concept convexity allows 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 ir prototypes. conceptual spaces have found applications in both cognitive modelling and artificial intelligence # see also **+** categorical perception **+** cognitive architecture **+** colour space **+** commonsense reasoning **+** conceptual dependency theory **+** distributional semantics **+** face space **+** formal concept analysis **+** frame semantics **+** global workspace theory **+** image schema **+** phonetic space **+** semantic space **+** similarity (philosophy) **+** state space **+** vector space model **+** visual space // republic of bob