The authority score for a node measures the tendency of other nodes in the group to connect to it. If many individuals are contacting a particular person, potentially asking for information or opinions, that person has the role of an authority. The authority scores for the nodes in group, which correspond to the stationary probabilities for a random walk with restarts through the group network, range from 0 to 1. The closer the authority score is to 1, the more authority that node has within the group. The node in the group with the highest authority score is referred to as the authority leader for the group. Dividing the largest score within a group by the smallest provides a measure of the overall strength of the authority leader.


In contrast, the dissemination score for a node measures the tendency of the node to connect to other nodes in the group. If a particular person contacts many other people in the group, that person can significantly affect the opinions of the entire group. The dissemination scores for the nodes in group, which correspond to the stationary probabilities for a random walk with restarts
through the group network in reverse, range from 0 to 1. The closer the dissemination score is to 1, the more the node connects to the other group members. The node in the group with the highest dissemination score is referred to as the dissemination leader for the group. Dividing the largest score within a group by the smallest provides a measure of the overall strength of the dissemination leader.

SPSS do provide an Modlerler 15.0 Algorithm Guide, but unfotunately I have not found anything about SNA from it.

ftp://public.dhe.ibm.com/software/analytics/spss/documentation/modeler/15.0/en/AlgorithmsGuide.pdf

非常感谢解答，但是这个SNA计算两个分数算法IBM并没有提供文档，所以请问这几个分数是如何计算得到的？

我还是给你置顶吧，让更多的人看到来回答你， 有问题有需求尽管找我，我是为大家服务的

积极支持好的解答的答案。

楼主可否提供下SNA插件的下载方式