【摘要】 随着数字图书馆建设的推进,人们更多地利用网络通过电子媒介来获取所需的资源。如何帮助用户找到满足用户需求的资源,已成为当前迫切需要解决的课题。本文对传统检索方法进行分析,指出要提高检索的查全率和查准率,需要将信息以机器可理解的方式描述,为信息赋予语义。对描述逻辑进行了分析,论述了描述逻辑在数字图书检索中的应用。更多还原

【Abstract】 As digital libraries have been applying to wide areas of the world, more and more people get useful resources by using digital libraries instead of traditional books. And how to find the proper resources in digital libraries requested by users becomes a very significant task which needs to be solved as soon as possible. By studying the traditional information search methods, this paper indicate that there is a need to present information in a machine understandable form for the sake of high recall and precision ratio, and then analyze the description logic as well as its application in digital books search.更多还原