本体演化管理研究

自W3C主席TimBerncrs-Lee首先提出了语义web的概念后，它正在成为计算机信息处理领域当前研究的热点之一。本体将在“语义Web”中起到至关重要的作用，它通过定义精确的共享术语，以提供某一特定领域可重用的知识。但是这些知识并不是静态的，而是随着时问的推移不断演化。领域的改变、自适应不同的任务、或概念模型的改变都要求本体的变更。随着本体开发变成一个泛化的、协同的过程，本体版本控制和演化管理已成为本体研完中一个重要的领域。本文首先对本体演化的原因和所带来的问题进行分析，然后讨论了本体演化管理的关键技术，着重强调了Web上本体标识和本体变化机制的定义，并对今后的研究工作进行了展望。

A Study on Ontology Evolution Management

Since Tim Berners Lee, current W3C chairman, first proposed the Semantic Web, it is becoming the hot topic of computer information processing area. Ontologies are set to play a key role in the "Semantic Web", as they provide a reusable piece of knowledge about a specific domain. However, those pieces of knowledge are not static, but evolve over time- Domain changes, adaptations to different tasks, or changes in the conceptualization require modifications of ontology- As ontology development becomes a more ubiquitous and collaborative process, ontology versioning and evloation becomes an important area of ontology research. The paper first analyzes the causes and the consequences of ontologies evolution. Then the key technologies of ontology evolution management are discussed. Ontologies identification and the definition of ontology change mechanisms are our focuses. Finally we propose the future work of ontology evolution management.