The Practical Logic of Computer Work Philip E. Agre 98300-202 - - PowerPoint PPT Presentation

The Practical Logic of Computer Work

Philip E. Agre 98300-202 김기문

Computationalism

• vs Connectionism
• Collection of theories about mind
• Theories of representation

(model of the world)

• Theories of perception

(mental model)

• Theories of action

(execution of plan)

Dissociation

• Mind vs world
• Mental activity vs perception
• Plans vs behavior
• The mind vs the body
• Abstract ideals vs concrete things

Mind vs World

• Mind - “container” metaphor, Lakoff

and Johnson (1980)

• World - hard to maintain accurate

knowledge

• World model – covertly conflated
• Research “domain”

Mental Activity vs Perception

• Symposium paper(1951), Karl Lashley
• Behaviorist – stimulus-chaining
• Cognitivist movement
• The role of perception in organizing

behavior

Plans vs Behavior

• Plans and the Structure of Behavior

(1960) - Miller, Galanter, and Pribram

• Prescripted plan vs

Plan that unfolds incrementally trough time

• TOTE unit

“Reactive planning”

The Mind vs The Body

• STRIPS model (1972) – Fikes, Hart,

and Nilsson

• Mind - constructs plans
• Body - executes plans
• Unintended situation
• Rapid alternation

Abstract Ideals vs Concrete Things

• Tradition of Fregean semantics
• Psychologism – the theory that

meaning are mental entities

• Platonism – the theory that meanings

reside in timeless, extensionless realam of ideals

• Mathematical entities

Conclusion

• Part of the history of Western

thought

• World – negative, chaotic principle
• Mind – positive, ordering principle
• It Doesn’t Work That Way
• Recognize the order inherent in the

world

• Listen to and learn from reality