期刊论文

Chen Mao（陈矛）

中文

物理学报

1000-3290

2015

64

8

088901-01-088901-11

10.7498/aps.64.088901

(2013BAH72B01):国家科技支撑计划 (NCET-11-0654):教育部新世纪优秀人才支持计划 :教育部-中国移动科研基金(2012)研发项目(批准号:MCM20121061)资助的课题.* Project supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China(Grant 2013BAH72B01) (Grant NCET-11-0654):the Program for New Century Excellent Talents in University of Ministry of Education of China (Grant MCM20121061):the Scientific Research Foundation of Ministry of Education of China and China Mobile Limited

本校为第一且通讯机构

对网络中节点的传播影响力进行评估具有十分重要的意义, 有助于促进有益或抑制有害信息的传播. 目前, 多种中心性指标可用于对节点的传播影响力进行评估, 然而它们一般只有当传播率处于特定范围时才能取得理想的结果. 例如, 度值中心性指标在传播率较小时较为合适, 而半局部中心性和接近中心性指标则适用于稍大一些的传播率. 为了解决各种评估指标对传播率敏感的问题, 提出了一种基于扩展度的传播影响力评估算法. 算法利用邻居节点度值叠加的方式对节点度的覆盖范围进行了扩展, 使不同的扩展层次对应于不同的传播率, 并通过抽样测试确定了适合于特定传播率的层次数. 真实和模拟数据集上的实验结...

Evaluating influential spreaders in networks is of great significance for promoting the dissemination of beneficial information or inhibiting the spreading of harmful information. Currently, there are some central indices that can be used to evaluate spreading influence of nodes. However, most of them ignore the spreading probability and take into consideration only the network topology or the location of source node, so the excellent results can be achieved only when the spreading probability is in a specified range. For example, the degree centrality is appropriate for a minor spreading prob...