该文 将课程的关联关系描述为一个 Markov 链 , 进而给出了课程优先度 (CourseRank) 的概念 .
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... Color (照片和视频分享) Courserank (教育) Grockit (教育) ...
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Chegg recently acquired college-centric online social platform, CourseRank, which allows students to rank and comment on institutions, professors and classes.
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