回路演習解答文の誤り発見のための答案診断システム

概要

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Knowledge representation and reasoning process for inspecting solutions of circuit problems are shown in this paper. A solution is composed by several sentences and equations. A sentence describes definition or attribute of variables, application of circuit laws to derive circuit equations or of algebraic operations to solve equations, and determination of the answer. Our system interprets each of sentences and finds out mistakes involved in it. Diagnosing process has two levels named primitive level and meta level. At the first level, case grammar analysis is used for transformation of a sentence to a case frame. The case frame forms frame, is categorized by verb and has two slots filled with words or equations. Depth first search is applied for the analysis. Grammatical errors or fundamental errors such as misusage of the system or ignorance of principle of circuit analysis are detected at the level. Errors happened when he cannot derive correct expressions or equations from the problem are found at the second level. In the diagnosing process the meaning of case frames is analized in accordance with rules which are represented by knowledge of circuit analysis and formula manipulation. Conditional parts of rules detect errors. The system is implemented by Hyperware-Prolog which is a diarect of DEC-10 Prolog.
社団法人人工知能学会の論文
1988-05-20