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中文摘要：
本体变更的目的是为了适应环境的变化，而变更的前提是要保证本体和使用它的应用或数据间的兼容性，本体概念或属性的重命名、合并、分解都可能造成本体与应用间的不兼容。提出了一种基于Change-Tree的本体变更日志存储方法。该方法采用有向树来组织本体的变更过程，用变更树节点来存储本体变更的信息，用节点间与或关系来关联本体的变更类型；同时该方法能采用树搜索来遍历本体变更的每一个历史阶段，从而为重现本体变化的历史提供了一种灵活高效的途径。
英文摘要：
Ontology change is designed to adapt to environmental changes while its prerequisite is that the compatibility between ontology and application exits. In fact, the incompatibility always comes from the renaming, merging and splitting of on- tology concepts or properties. This paper proposed a novel method for storing ontology change logs based on Change-Tree. This method used a special orientated tree to organize the ontology change process, stored ontology change information in tree nodes, expressed the change type using and-or relations between nodes. Meanwhile this method could traverse each ontology change stage by means of tree seaching method,which provided a flexible and efficient way to reproduce the whole process of ontology change.
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