文档介绍：Chapter 7
Knowledge
Representation
Five main functions of Knowledge Representation
1. record
wall paintings in cave made by mans of old age
2. communication
the blue print by architects
3. propagation
print knowledge in the book.
an panda picture in child book
4. calculation and reasoning
formulas of Mathematics
5. applications
creations and invents
make something which do not exist in natural
world or the past time,
Representation ability is possessed only by mankind.
some animals can have intelligent behaviors,
but they have not representation ability.
they can not make paintings.
The Time gives new meaning of representation.
We can represent knowledge puters
combine the record and application.
Our age of anxiety is, in great part, the result of trying to
do today’s job with yesterday’s tools .
Marshall McLuhan
Some hints puter Knowledge Representation.
1. knowledge is applied directly.
2. sweeping reform in our whole way of thinking of
about intelligent behavior.
3. abandon the idea on execution and reasoning.
4. abandon the traditional research methods, which
divide minds and action taking body.
Issues in Knowledge Representation
A brief history of AI Representational
Schemes
Concept Graph: work Language
Alternatives to Explicit Representation
Agent-based and distributed Problem
Solving
A brief history of AI Representational
Schemes
Associationist Theory of Meaning
Early work in
Standardization work Relationship
Scripts
Frames
A brief history of AI Representational
Schemes
Associationist Theory of Meaning
The logic reasoning depends on the truth value and equivalence, in transmitting meaning of a sentence it has limitation.
“If a bird is a cardinal then it is red”
It can be expressed by using predicate logic
x( cardinal (x) red(x))
this logic formula is equivalent to
x (┒red(x) ┒cardinal (x))
The evidence of the second sentence can not be th