The library service is changing from manual service to network service based on digital library.
图书馆的服务正在由人工服务拓展为基于数字图书馆的网络服务。
The establishment of user model, based on the user's interests and hobby, is the key techniques in the individuation-service-system in digital library.
针对用户兴趣和偏好建立用户模型，是整个数字图书馆个性化服务系统中的关键技术。
A theory pattern of e-book service is established for the digital library based on DRM technologies of e-book exchange (EBX) system.
本文依据电子书交换系统(ebx)的DRM技术，构建了数字图书馆电子书服务的理论模式。
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