基于可信语义Wiki的知识库构建方法与应用研究

本项目在对语义Wiki的复杂网络特性、词条质量决定因素、用户交互模式以及语义标注和逻辑推理机制进行详细分析的基础上，结合现有的信任计算方法，通过综合运用图论、模糊逻辑、概率和本体理论建立对词条内容、语义信息和词条贡献者的信任评价方法及信任值的存储、表示形式与管理机制；然后采用知识地图、逻辑学理论和聚类分析技术，从显性知识和隐形知识的抽取、知识不完全和矛盾情况下的非单调次协调推理、本体整合三方面深入研究基于可信语义Wiki的知识库构建方法；并采用社会网络理论、决策树和语义检索技术创建该知识库在知识共享、知识复用、知识工程中的应用模式；最后选取合适的应用场景，进行基于可信语义Wiki的智能知识问答系统的模拟实验，对相应的算法和模型予以校验，以期达到在分布、协同环境下运用语义Wiki进行有效知识管理的目标。本研究不仅可以丰富和扩展情报学基础理论，而且能够提升组织的知识创新与竞争能力。

The trust evaluation method for contents of entries, semantic information and entry contributors is designed in this project, based on existing trust models and the analysis of complex network characteristics, determinants of entry quality, interactive mode of users, semantic annotation mechanism and logical reasoning of semantic wiki, by using graph theory , fuzzy logic, probability theory and ontology theory. The storage mode, representation form of trust value and trust management model are also proposed. Then the construction method of knowledgebase based on trusted semantic wiki are researched from three aspects, which are obtaining of explicit knowledge and tacit knowledge, non-monotonic paraconsistent reasoning under the situation of incomplete and conflict knowledge, ontology integration, by using knowledge map, logic theory, and cluster analysis technique. The application modes of knowledgebase on knowledge sharing, knowledge reuse and knowledge engineering are created by using social network theory, decision tree and semantic retrieval technologies. Lastly,the intelligent question answering system of a certain field based on trusted semantic wiki is simulated. Referring to the experimental results, the algorithms and models are modified in order to reach the target，that is effective knowledge management using semantic wiki under the distributed and cooperative conditions. This research can not only enrich and extend basic theory of information science, but also improve the knowledge innovation and competition ability of organizations.