Proceedings of the Eleventh International Workshop on Machine Learning pp . 173 - 180 ,
نویسنده
چکیده
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. Experimental results indicate that the former method results in signi cantly faster training and produces much simpler re ned rule bases with slightly greater accuracy.
منابع مشابه
Appears in Proceedings of the Eleventh International Workshop on Machine Learning pp . 343 - 351 ,
This paper describes a new method for inducing logic programs from examples which attempts to integrate the best aspects of existing ILP methods into a single coherent framework. In particular, it combines a bottom-up method similar to Golem with a top-down method similar to Foil. It also includes a method for predicate invention similar to Champ and an elegant solution to the \noisy oracle" pr...
متن کاملProceedings of the Eleventh International Workshop on Machine Learning
This paper compares two methods for reen-ing uncertain knowledge bases using propo-sitional certainty-factor rules. The rst method, implemented in the Rapture system , employs neural-network training to re-ne 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 n...
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I Physic. Rev., 20 (1922), p. 300. 2 Proc. Nat. Acad. Sci., 13 (1927), pp. 43-46. 3 Physic. Rev., 27 (1926), pp. 51-67. 4Ibid., 27 (1926), pp. 173-180. r Proc. Nat. Acad. Sci., 9 (1923), pp. 207-211. 6Ibid., 7 (1921), pp. 98-107. 7Hall, "Conditions of Electric Equilibrium, Etc.," Ibid., 11 (1925), pp. 111-116. 8 Richardson and Compton, Phil. Mag., London, 24 (1912), p. 575; Hennings, Physic. Re...
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