1
ljc 2014-11-17 23:06:44 +08:00 1
http://en.wikipedia.org/wiki/Six_degrees_of_separation
Six degrees of separation is the theory that everyone and everything is six or fewer steps away, by way of introduction, from any other person in the world, so that a chain of "a friend of a friend" statements can be made to connect any two people in a maximum of six steps. It was originally set out by Frigyes Karinthy in 1929 and popularized by a 1990 play written by John Guare. |
2
GeekGao 2014-11-17 23:35:42 +08:00
cool
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3
onlyice 2014-11-18 00:00:37 +08:00 via Android
界面做得好精致……
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4
Chipper 2014-11-18 00:50:15 +08:00
界面蛮不错的
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5
staticor 2014-11-18 00:57:49 +08:00
想当年以前在sina 微博时测过了好友\关注间的人脉关系计算, 结果发现所谓的"leader"节点真是影响蛮大的, 有无这样一个节点几乎造成了+- .5度的变化.
另外用这个 degree可以用来衡量大规模social network活跃的情况 : weibo > qq > qq zone, qq + qq zone > weibo 后来数据质量下降的厉害, 得把关系强度提升一下才可以用了. |