基于语义的气象信息检索系统的构建

Construction of Semantics-Based Meteorological Information Retrieval System

针对当前信息资源分散、气象知识专业性强、网络信息获取准确性和可靠性不能保证等问题,设计了一个基于语义的气象信息检索系统,为用户提供了一个人机交互平台。系统主要运用基于本体的语义检索和语义扩展能力,通过构建气象知识本体,建立气象信息本体库,利用推理规则,查询检索词条对应的描述、关键字等解释属性以及扩展查询其兄弟类、父类、子类词条,在交互过程中不断调整检索词条,实现气象知识的准确获取。实验结果表明该系统能有效提高气象信息的利用率,提高用户信息获取的准确性。

In view of the scattered information resources, highly professional knowledge, and the unreliability and uncertainty in gaining network meteorological information accurately, a meteorological information retrieval system is designed based on semantics, which provides a human computer interaction platform for users. The system mainly uses the semantic retrieval and semantic extension capabilities based on ontology. Through building the meteorological knowledge ontology, an ontology base of meteorological information is set, and by using the inference rules, the explaining properties of the retrieved entry, such as description, keywords, etc., can be queried, as well as the extended queries about its brother, father, and subclass entries. By constantly adjust search terms in the process of interaction, the accurate obtaining of meteorological knowledge is realized. The experimental results show that the system can effectively improve the utilization rate of meteorological hydrological information and improve the accuracy of access to information for users.