Comparing Methods for Refining Certainty-Factor Rule-Bases

  title={Comparing Methods for Refining Certainty-Factor Rule-Bases},
  author={J. Jeffrey Mahoney and Raymond J. Mooney},
This paper compares two methods for re ning uncertain knowledge bases using propositional certainty-factor rules. The rst method, implemented in the Rapture system, employs neural-network training to rene the certainties of existing rules but uses a symbolic technique to add new rules. The second method, based on the one used in the Kbann system, initially adds a complete set of potential new rules with very low certainty and allows neural-network training to lter and adjust these rules… CONTINUE READING
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