<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "A connectionist model for categorical perception and symbol grounding"^^ . "Neural network models of categorical perception can help solve the symbol-grounding problem [Harnad, 1990; 1993] by connecting analog sensory projections to symbolic representations through learned category-invariance detectors in a hybrid symbolic/nonsymbolic system. Our nets learn to categorize and name 50x50 pixel images of circles, ellipses, squares and rectangles projected onto the receptive field of a 7x7 retina. The nets first learn to do prototype matching and then entry-level naming for the four kinds of stimuli, grounding their names directly in the input patterns via hidden-unit representations. Next, a higher-order categorization (symmetric vs. asymmetric) is learned, either directly from the input, as with the entry- level categories, or from combinations of the grounded category names (symbols). We analyze the architectures and input conditions that allow grounding to be \"transferred\" from directly grounded entry-level category names to higher- order category names. Implications of such hybrid models for the evolution and learning of language are discussed."^^ . "1998" . . . . . . . . . . . . . . "Stevan"^^ . "Harnad"^^ . "Stevan Harnad"^^ . . "Angelo"^^ . "Cangelosi"^^ . "Angelo Cangelosi"^^ . . "Alberto"^^ . "Greco"^^ . "Alberto Greco"^^ . . . . . . "A connectionist model for categorical perception and symbol grounding (HTML)"^^ . . . "icann9~1.htm"^^ . . . "Image27.gif"^^ . . . "A connectionist model for categorical perception and symbol grounding (Indexer Terms)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #622 \n\nA connectionist model for categorical perception and symbol grounding\n\n" . "text/html" . . . "Cognitive Psychology" . . . "Neural Nets" . .