Computer Science ›› 2007, Vol. 34 ›› Issue (12): 193-196.
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CHEN Qi-Hui XU Hai-Ning LING Pei-Liang （E-Learning Institute, Tongji University, Shanghai 200092）
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Abstract: The key point of learning navigation system lies in its high efficiency to direct learners to achieve their study tasks in order to avoid losing in the study, improving learning efficiency and reducing the feeling of loneliness to some extent. This articl
Key words: Relation between knowledge nodes, Navigation system, Petri net,Fish eye view,Awareness processing
CHEN Qi-Hui XU Hai-Ning LING Pei-Liang （E-Learning Institute, Tongji University, Shanghai 200092）. [J].Computer Science, 2007, 34(12): 193-196.
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