Secondly, in the paper a user's requirement model has been proposed using the ontology theory that presented by descriptive logic, the model adequately expresses the semantic information of users.

第二，提出了利用描述逻辑表示的本体理论来表达用户需求的模型，该模型可以充分表达用户需求中的语义信息；

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This paper presents a designing schema of platform using for information system of electric power based on J2EE, and emphasizes on the design and implementation of semantic tier.

提出了一种基于J2EE技术，用于电力信息系统的平台设计方案，并着重介绍了平台的语义层设计与实现。

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Mining association rules with ontological information bases on built domain ontology, using an algorithm of data mining, to produce semantic association rules which are more greatly satisfying users.

基于本体的关联规则挖掘，是利用构建好的领域本体，结合数据挖掘算法，产生出具有语义的更符合用户需求的关联规则。

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