微博客上的精英圈子现象

#研究分享#【微博客上的精英圈子现象】微博客用户可以分为两类:精英和普通用户。前者具体分为媒体、名人、机构和博客写手。1.精英阶层有明显的圈子划分,名人大部分会关注名人,媒体主要关注媒体,机构较多关注博客写手,博客写手主要关注其他博客。2.尽管相对数量较少,精英阶层创造了绝大多数的微博客内容。3.微博内容更多被圈子内人士互转,但博客写手的内容是最重要的消息来源,他们是重要的消息聚合和过滤“中介”,而名人创造内容最少。以上结论来自对Twitter上数据的分析。

 

Who Says What to Whom on Twitter

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Shaomei Wu∗ Cornell University, USA

Winter A. Mason Yahoo! Research, NY, USA

Jake M. Hofman Yahoo!

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Research, NY, USA

Duncan J. Watts Yahoo! Research, NY, USA

 

Abstract

We study several longstanding questions

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in media communi- cations research, in the context of the microblogging service Twitter, regarding the production, flow, and consumption of information. To do so, we exploit a recently introduced fea- ture of Twitter known as “lists” to distinguish between elite users—by which we mean celebrities, bloggers, and represen- tatives of media outlets and other formal organizations—and ordinary users. Based on this classification, we find a strik- ing concentration of attention on Twitter, in that roughly 50% of URLs consumed are generated by just 20K elite users, where the media produces the most information, but celebrities are the most followed. We also find significant homophily within categories: celebrities listen to celebrities, while bloggers listen to bloggers etc; however, bloggers in general rebroadcast more information than the other cate- gories. Next we re-examine the classical “two-step flow” the- ory of communications, finding considerable support for it on Twitter. Third, we find that URLs broadcast by different categories of users or containing different types of content exhibit systematically different lifespans. And finally, we ex- amine the attention paid by the different user categories to different news topics.

Categories and Subject Descriptors

H.1.2 [Models and Principles]: User/Machine Systems; J.4 [Social and Behavioral Sciences]: Sociology

General Terms

two-step flow, communications, classification

Keywords

Communication networks, Twitter, information flow

 

Copyright is held by the International World Wide Web Conference Com- mittee (IW3C2). Distribution of these papers is limited to classroom use, and personal use by others.
WWW 2011, March 28–April 1, 2011, Hyderabad, India.

ACM 978-1-4503-0637-9/11/03.


1 条评论

  1. zhangwenyuan说道:

    感谢分享,http://weibo.com/1711479641/AETNzmBBM?mod=weibotime



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