微博中节点影响力度量与传播路径模式研究

doi:10.3969/j.issn.1000-436x.2012.z1.013

Abstract

Abstract:

In order to analyze microblogging information propagation path modes,the node's influence to reflect its importance was defined based on considering the characteristics of information propagation in microblogging.Firstly,the broadcast/comment data of a microblogging was collected and preprocessed.Then,the formal description of the transmission network was given,and the node’s influence was defined which reflects its significance in the local and global aspects.The results of comparative experiments show that the new definition is reasonable.Besides,some information propagation path modes were proposed,which combine the measurement of influence.Finally,the results by using visualization software-NodeXL show that the information propagation path modes are typical.

Key words: microblogging, node’s influence, information propagation, path

Hong YU,Xian YANG. Studying on the node’s influence and propagation path modes in microblogging[J]. Journal on Communications, 2012, 33(Z1): 96-102.

Figures/Tables 11

度数中心性	中间中心性	接近中心性
C_Di=i的度数	$C_{B i} = \sum_{j}^{n} \sum_{k}^{n} b_{j k} (i), j \neq k \neq i$	$C_{C i} = {(\sum_{j = 1}^{n} d_{i j})}^{- 1}$

References 10

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	人人网	微博
关注关系	双方认可（面对面）	单方认可（面对背）
圈子	是熟人小圈子	大圈子
功能	以社交为主	以媒体（信息传播、获取及分享）为主，社交为辅
信息传播速度	慢	极快
公开性	信息在小圈子内封闭	信息全面开放（内容、关系）
话题内容	就人论事，可信度高，更多局限在个人生活话题	就事论事，大众化，发布所见所闻，新闻八卦、言论表达场所
互动模式	以人为核心	以话题为核心

排名	度数中心性	中间中心性	接近中心性	影响力
1	121	1	1	1
2	1	121	121	121
3	125	54	54	54
4	54	96	95	125
5	96	95	7	96
6	60	125	13	57
7	13	55	2~6,8~12	60
8	57,100	57	14~30	55
9	31,55	60	125	13,31
10	66,99,111,118,159,165,167	100	159	159

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Studying on the node’s influence and propagation path modes in microblogging

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