用产生式方法描述优化聚合规则，用句子结构类和资源树描述语义与句子结构的对应关系以及用复杂特征集描述句法规则和词汇。

Sentence structure Classes and Resource Trees are adopted to depict syntax structure of sentences, which have similar semanteme. Complex Feature Set is used to describe dictionary.

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介绍了文法化简中消除无用符号和无用产生式的树型算法，并通过实例予以验证。

This paper introduces a new tree algorithm that is for deleting superfluous symbol and production in grammar, and gives a practical example to check the algorithm.

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知识发现，采用SLIQ快速可伸缩算法，分类模型用判定树与产生式规则两种形式描述。

Knowledge discovery component take SLIQ as basic arithmetic. It provides classification model in two stage forms which aim at training suit. That is decision tree and productive rule.

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