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Artificial Intelligence and Soft Computing: Behavioral ... - Arteimi.info

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20.5 Knowledge Refinement by Hebbian Learning<br />

20.5.1 The Encoding Model<br />

20.5.2 The Recall/ Reasoning Model<br />

20.5.3 Case Study by Computer Simulation<br />

20.5.4 Implication of the Results<br />

20.6 Conclusions<br />

Exercises<br />

References<br />

Chapter 21: Validation, Verification <strong>and</strong><br />

Maintenance Issues<br />

21.1 Introduction<br />

21.2 Validation of Expert Systems<br />

21.2.1 Qualitative Methods for Performance Evaluation<br />

Turing Test<br />

Sensitivity Analysis<br />

21.2.2 Quantitative Methods for Performance Evaluation<br />

Paired t-Test<br />

Hotelling’s One Sample T 2 –test<br />

21.2.3 Quantitative Methods for Performance Evaluation with<br />

Multiple Experts<br />

21.3 Verification of Knowledge Based System<br />

21.3.1 Incompleteness of Knowledge Bases<br />

21.3.2 Inconsistencies in Knowledge Bases<br />

21.3.3 Detection of Inconsistency in Knowledge Bases<br />

21.3.4 Verifying Non-monotonic Systems<br />

21.4 Maintenance of Knowledge Based Systems<br />

21.4.1 Effects of Knowledge Representation on Maintainability<br />

21.4.2 Difficulty in Maintenance, When the System Is Built with<br />

Multiple Knowledge Engineers<br />

21.4.3 Difficulty in Maintaining the Data <strong>and</strong> Control Flow<br />

21.4.4 Maintaining Security in Knowledge Based Systems<br />

21.5 Conclusions<br />

Exercises<br />

References<br />

Chapter 22: Parallel <strong>and</strong> Distributed Architecture<br />

for Intelligent Systems<br />

22.1 Introduction<br />

22.2 Salient Features of AI Machines<br />

22.3 Parallelism in Heuristic Search

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