CIS 5603. Artificial Intelligence
Knowledge Representation and Management
1. Knowledge representation
Knowledge refers to data that is meaningful, modular, and multipurpose.
Classical representation: propositions in classical logic, which maybe complete, but inefficient.
To organize knowledge in proper structures:
2. Knowledge bases
A knowledge base organizes and maintains a huge amount of knowledge, and provides various functions.
Various techniques allows the Internet to be used as a knowledge source:
3. Knowledge-based systems
In the history of AI, there has been a competition between methods of problem solving that mainly depend on domain knowledge and those that mainly depend on domain-independent mechanism. "Knowledge-based systems" typically belong to the former, which are also known as "Expert Systems".
Major approaches:
4. The problem of meaning
Challenges to the traditional "symbolic" approach:
Responses:
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