To cognize is to categorize: from the ‘blooming, buzzing confusion’ to the ‘cognitive commons’ Stevan Harnad Canada Research Chair in Cognitive Science Université du Québec à Montréal & Professor of Web Science University of Southampton ISKO July 16 2012
From Glossogony to Google or From Communication to the Cognitive Commons ISKO July 16 2012
What is Categorization? Doing the right thing with the right KIND of thing ISKO July 16 2012
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Categorical Perception (CP) ISKO July 16 2012
Texture category learning: ERP Studies ISKO July 16 2012
Learned Categorical Perception (CP) Pevtzow, R. & Harnad, S. (1997) ISKO July 16 2012
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Prior neural net studies Tijsseling & Harnad (1997) ISKO July 16 2012
Hearsay: A New Way To Acquire Categories Cangelosi & Harnad (2002) ISKO July 16 2012
“TOADSTOOL” = “MUSHROOM” + “STRIPES” Acquiring categories by theft (instruction) vs toil (instruction): The birth of the Category Commons “TOADSTOOL” = “MUSHROOM” + “STRIPES” ISKO July 16 2012
Acquiring categories by theft (instruction) vs toil (instruction): Category theft is a victimless crime ISKO July 16 2012
Chinese-Chinese Dictionary & the symbol grounding problem ISKO July 16 2012
Nets in our heads: The mental lexicon ISKO July 16 2012
Toy dictionary represented as graph ISKO July 16 2012 15
Some words are not used in any definition. ISKO July 16 2012 16
They can be removed ISKO July 16 2012 17
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This process is recursive. ISKO July 16 2012 19
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Till no other word can be removed ISKO July 16 2012 21
“Grounding Kernel” (GK) of dictionary Resulting subgraph is “Grounding Kernel” (GK) of dictionary ISKO July 16 2012 22
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Summary for compressed real dictionary 500 words + Boole ISKO July 16 2012 24
Our Cognitive Commons ISKO July 16 2012
Our Category Commons ISKO July 16 2012
Thank You ISKO July 16 2012