The integration of DL and distance education is a significant topic of theoretical and practical research. This paper mainly discusses the principles of knowledge service of DL and four knowledge service models for distance education under the principles, namely, specialized service model based on subject knowledge base, content-based reference service model, personalized custom-made service model, and teamwork service model. The key point of realizing these models is to take distance education users as the center, set up subject information service platform, personalized information push platform, subject librarian knowledge service platform and platform for learning resource sharing and system interoperability, and properly integrate these platforms.
Research on the Construction of Knowledge Service Model of Port Supply Chain Enterprise in Big Data Environment