John: So why don't you study your notes on how to describe a graph. Where are they?

那么你为什么不好好复习一下这部分的课堂笔记呢？你的笔记在哪里？

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Estimate-convergence graph for software development, taken from Lecture 3, entitled "Software Schedule Estimation, " in the lecture notes section. (Image courtesy of MIT OCW. )

软体开发的预估收敛图， 取自课堂讲稿第三课，讲题为「预估软体开发的时程」。（图片由麻省理工学院「开放式课程网页」提供）

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Combining scientific discovery principles and graph theory, key notes with structure characters and cited frequency are provided to explain the relevant information of the network.

结合科学发现原理和图论的知识，选取有结构属性的关键节点、被引频次等参数来解释图谱网络中的相关信息。

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