| 摘要 |
PURPOSE:To shorten the processing time of an inference system regardless of the rule description method by using a means which stores the information on the past inference results and controlling the evaluating order of premise clauses based on said information stored in the memory means. CONSTITUTION:A rule memory part 10 stores the sorting type rules of the IF-THEN forms. A sorting result distribution memory part 9 stores the sorting frequency. A decision tree production part 8 refers to the distribution of the part 9 and the rule of the part 10 to produce a decision tree to minimize the expecting frequency needed for questions and stores the decision three into a decision tree memory part 6. A question order control part 5 interprets and executes the tree of the part 6 and has conversations with users through a conversation interface part 4 and updates the part 9 via a sorting result distribution updating part 7 at a time point when the sorting result is finally obtained. Thus, it is possible to shorten the expecting time needed for sorting jobs and to avoid the useless questioning frequency.
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