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计算机系统应用英文版:2023,32(1):257-265
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基于社区与结构熵的异质网络影响力最大化
(云南大学 信息学院, 昆明 650500)
Influence Maximization of Heterogeneous Networks Based on Community and Structure Entropy
(School of Information Science and Engineering, Yunnan University, Kunming 650500, China)
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Received:June 07, 2022    Revised:July 06, 2022
中文摘要: 影响力最大化的目的是在网络中发现能够触发最大数量的剩余节点参与到信息传播过程的一小群节点. 目前异质信息网络中影响力最大化的研究通常从网络中抽取同质子图、或基于节点局部结构的元路径进行节点影响力的评估, 没有考虑节点的全局特征和网络中高影响力节点间的集群现象给种子集合最终扩散范围造成的影响损失. 文中提出了一种基于社区与结构熵的异质信息网络影响力最大化算法, 该算法能够有效地从局部和全局两个方面度量节点的影响. 首先, 通过构建元结构保留节点在网络中的局部结构信息和异质信息度量节点的局部影响; 其次, 利用节点所属社区在整个网络中的权重占比对节点的全局影响进行度量; 最后, 综合求出节点的最终影响并选出种子集合. 在真实数据集上进行的大量实验结果表明所提算法有较好的有效性和效率.
Abstract:The purpose of influence maximization is to find a small group of nodes in a network that can trigger the maximum number of remaining nodes to participate in the process of information transmission. At present, the research on the influence maximization of heterogeneous information networks usually extracts homogeneous subgraphs from the network or evaluates the influence of nodes according to the meta-path of local node structure. However, it does not consider the global features of nodes and the influence loss of the final spread range of the seed set caused by the clustering phenomenon among highly influential nodes. This study proposes an influence maximization algorithm for heterogeneous information networks based on community and structure entropy, which can effectively measure the influence of nodes locally and globally. Firstly, the local structure information and heterogeneous information of nodes in the network are retained by the construction of meta-structure to measure the local influence of nodes. Secondly, the global influence of nodes is measured by the weight ratio of the community to which the nodes belong to the whole network. Finally, the final influence of nodes is calculated, and the seed set is selected. Many experiments on real data sets indicate that the proposed algorithm is effective and efficient.
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基金项目:国家自然科学基金(62062066, 61762090, 61966036); 云南省基础研究计划重点项目(202201AS070015); 云南省高校物联网技术及应用重点实验室项目; 国家社会科学基金 (18XZZ005); 云南省教育厅科学研究基金(2021Y026); 云南大学研究生科研创新项目(2021Y024)
引用文本:
徐智敏,周丽华,刘超.基于社区与结构熵的异质网络影响力最大化.计算机系统应用,2023,32(1):257-265
XU Zhi-Min,ZHOU Li-Hua,LIU Chao.Influence Maximization of Heterogeneous Networks Based on Community and Structure Entropy.COMPUTER SYSTEMS APPLICATIONS,2023,32(1):257-265