Session 18_Intro_ Concepts_ Knowledge_handout

Session 18_Intro_ Concepts_ Knowledge_handout - The Network...

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1 Introduction to Concepts and G Dr. Kim Vu PSY 332: Cognition 1 General Knowledge Session 18 Knowledge Representation Generic knowledge: Knowledge of a general sort, as opposed to knowledge about specific events PSY 332: Cognition 2 Dr. Kim Vu Chapter 3: PDP model Chapter 7: Schema Chapter 9: General Knowledge and concepts How is Knowledge Represented? Formal network models Symbolic Connectionist PSY 332: Cognition 3 Dr. Kim Vu Clustering model Set-theoretical model Semantic features model The Network Models Symbolic Information is represented _____________ Connectionist PSY 332: Cognition 4 Dr. Kim Vu Information is represented __________________________________ Clustering Model Concepts tend to be organized into clusters PSY 332: Cognition 5 Dr. Kim Vu Free recall MINERALS i PSY 332: Cognition 6 Dr. Kim Vu
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2 Set-Theoretical Model Concepts are represented in memory as sets or collections of information e g Bird PSY 332: Cognition 7 Dr. Kim Vu e.g., Bird e.g., Robin e.g., Wings, Features, Beak, etc. In contrast to the clustering model Set-Theoretical Model Birds PSY 332: Cognition 8 Dr. Kim Vu Hawk Robin Attributes of two sets Bird Living Animal Feathers Robin Living Animal Feathers PSY 332: Cognition 9 Dr. Kim Vu Beak Flies Beak Flies Semantic Feature Comparison Concepts are represented in memory as a set of semantic features Meaning PSY 332: Cognition 10 Dr. Kim Vu Members of the same category will overlap on ________________________ and can vary on some of the _______________________ Is a robin a bird? Is a poodle a bird? Bird Defining Features Wings Feathers Robin Defining Features Characteristics PSY 332: Cognition 11 Dr. Kim Vu Animal Chirp Characteristics Fast Fly Pretty Poodle Defining Features Characteristics Definition for a Concept or Category What are the defining features for a chair?
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