Managing Uncertainty in Rule-Based Expert Systems
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Questions and Answers

What is uncertainty defined as?

  • Lack of perfect knowledge
  • Incomplete information
  • Inconsistent information
  • All of the above (correct)

Classical logic permits only which type of reasoning?

  • Fuzzy reasoning
  • Vague reasoning
  • Exact reasoning (correct)
  • Probabilistic reasoning

What is one of the sources of uncertain knowledge mentioned in the text?

  • Strong implications
  • Precise language
  • Imprecise language (correct)
  • Clear correlations

What painful task do domain experts and knowledge engineers have in establishing correlations in expert systems?

<p>Handling vague associations (B)</p> Signup and view all the answers

Which term is used in our natural language to describe facts as ambiguous and imprecise?

<p>Frequently and hardly ever (B)</p> Signup and view all the answers

What is uncertainty defined as in the context of expert systems?

<p>Incomplete, inconsistent, or uncertain information (C)</p> Signup and view all the answers

What is one of the sources of uncertain knowledge mentioned in the text?

<p>Weak implications (D)</p> Signup and view all the answers

What painful task do domain experts and knowledge engineers have in establishing correlations in expert systems?

<p>Establishing concrete correlations (A)</p> Signup and view all the answers

What type of reasoning does classical logic permit?

<p>Exact reasoning (A)</p> Signup and view all the answers

Which term is used in our natural language to describe facts as ambiguous and imprecise?

<p>Often and sometimes (D)</p> Signup and view all the answers

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