Manage Web Educational Knowledge Based on Knowledge Dimension Model

With the development of open online courses, the quantity of educational knowledge on the internet is growing fast. Building tree-structured catalogue and establishing full text search engine based on keywords are two main methods for information retrieval on a website. However, managing knowledge from various websites is still difficult. Due to the heterogeneous tree structure and diverse description format, it is difficult to integrate key information from different websites. This paper introduced a knowledge dimension model to solve the problems. By analyzing the dimensions of tree structure and description text, all the basic information about the materials was extracted and put into a shareable knowledge dimension model in order to manage the public materials on websites and build a knowledge base for knowledge utilization. This paper also used online courses data to verify the validity of the method.