基于语义的数字图书馆检索模型研究

Research on digital library retrieval model based on semantic technology

随着网络技术的快速发展,数字图书馆已经成为信息传播和获取的重要途径。而现阶段的数字图书馆缺乏具有语义性的匹配,同时没有提供计算机可读的语义信息。结合图书馆的具体应用,构建了基于本体语义技术的数字图书馆检索模型,并设计实现了一个检索系统原型,然后综合分析并利用DC元数据,建立了描述图书元数据的本体,同时结合图书馆的具体应用,构建了基于本体语义技术的扩展检索模型。最后,根据上述扩展检索模型设计了检索系统原型,并通过三组实验对比,验证了构建的检索模型的有效性和实用性。

With the rapid development of network technology,the digital library has become an important way of information transmission and acquisition. The digital library at this stage lacks the semantic matching,and can′t provide the semantic information with computer readable. The digital library retrieval model based on ontology semantic technology was constructed. A retrieval system prototype was designed and implemented. And then,the ontology to describe the book metadata was established by synthetically analyzing and using DC metadata,and the extension retrieval model based on ontology semantic technology was constructed in combination with the specific application of the library. Finally,according to the extension retrieval model,the retrieval system prototype was designed. The effectiveness and practicability of the constructed retrieval model was verified with the experimental comparison of three groups.