知识服务——现状、进展及挑战

国外对基于语义Web技术知识服务研究集中在数字图书馆领域。研究主要围绕用户需求的语义表达,落实于知识服务的"以人为本"上。国内学者对此研究主要集中在语义门户、网络化知识组织系统和基于语义Web检索理论方面。基于语义Web技术开发知识服务所面临的挑战来自三个方面:知识服务统一标准规范;知识服务主体的语义互联策略;知识服务用户需求的语义描述策略。表3。图2。参考文献28。

Knowledge Services: Present Status, Advances and Challenges

In foreign countries,the researches on knowledge services based on semantic web tech- nologies are limited in the field of digital library.Researches are mainly focused on semantic representa- tion of user demand and the"user-centeredness"of knowledge services.In China,researches are main- ly focused on semantic portals,networked knowledge organization system and the retrieval theories based on semantic web.The authors point out three challenges:common standards for knowledge services,se- mantic interconnection of knowledge services and semantic representation strategies for knowledge serv- ice user demand.3 tabs.2 figs.28 refs.