Journal of Computer Applications ›› 2023, Vol. 43 ›› Issue (11): 3449-3456.DOI: 10.11772/j.issn.1001-9081.2022101626

• Data science and technology • Previous Articles    

Multiple clustering algorithm based on dynamic weighted tensor distance

Zhuangzhuang XUE1, Peng LI1,2(), Weibei FAN1,2, Hongjun ZHANG1, Fanshuo MENG1   

  1. 1.School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing Jiangsu 210023,China
    2.Institute of Network Security and Trusted Computing,Nanjing University of Posts and Telecommunications,Nanjing Jiangsu 210023,China
  • Received:2022-11-09 Revised:2022-12-29 Accepted:2023-01-03 Online:2023-04-12 Published:2023-11-10
  • Contact: Peng LI
  • About author:XUE Zhuangzhuang, born in 1997, M. S. candidate. His research interests include machine learning, multiple clustering algorithm.
    LI Peng, born in 1979, Ph. D., professor. His research interests include computer communication networks, wireless sensor networks, information security.
    FAN Weibei, born in 1987, Ph. D., lecturer. His research interests include parallel and distributed systems, data center network, cloud computing.
    ZHANG Hongjun, born in 1985, Ph. D. candidate. His research interests include multiple clustering and parallel optimization based on tensor chain decomposition.
    MENG Fanshuo, born in 1997, M. S. candidate. His research interests include tensor chain decomposition.
  • Supported by:
    National Natural Science Foundation of China(62102194);“Six Talent Peaks” High-level Talents Project of Jiangsu Province(RJFW-111)

基于动态加权张量距离的多聚类算法

薛状状1, 李鹏1,2(), 樊卫北1,2, 张宏俊1, 孟凡朔1   

  1. 1.南京邮电大学 计算机学院、软件学院、网络空间安全学院,南京 210023
    2.南京邮电大学 网络安全与可信计算研究所,南京 210023
  • 通讯作者: 李鹏
  • 作者简介:薛状状(1997—),男,江苏睢宁人,硕士研究生,主要研究方向:机器学习、多聚类算法
    李鹏(1979—),男,福建长汀人,教授,博士,CCF会员,主要研究方向:计算机通信网络、无线传感器网络、信息安全 lipeng@njupt.edu.cn
    樊卫北(1987—),男,河南开封人,讲师,博士,CCF会员,主要研究方向:并行和分布式系统、数据中心网络、云计算
    张宏俊(1985—),男,安徽皖和人,博士研究生,主要研究方向:基于张量链分解的多聚类及并行优化
    孟凡朔(1997—),男,江苏徐州人,硕士研究生,主要研究方向:张量链式分解。
  • 基金资助:
    国家自然科学基金资助项目(62102194);江苏省“六大人才高峰”高层次人才项目(RJFW?111)

Abstract:

When measuring the importance of attributes in Tensor-based Multiple Clustering algorithm (TMC), the relevance of attribute combinations within object tensors are ignored, and the selected and unselected feature space are incompletely separated because of the fixed weight strategy under different feature space selection. For above problems, a Multiple Clustering algorithm based on Dynamic Weighted Tensor Distance (DWTD-MC) was proposed. Firstly, a self-association tensor model was constructed to improve the accuracy of attribute importance measurement of each feature space. Then, a multi-view weight tensor model was built to meet the task requirements of multiple clustering analysis by dynamic weighting strategy under different feature space selection. Finally, the dynamic weighted tensor distance was used to measure the similarity of data points, generating multiple clustering results. Simulation results on real datasets show that DWTD-MC outperforms comparative algorithms such as TMC in terms of Jaccard Index (JI), Dunn Index (DI), Davies-Bouldin index (DB) and Silhouette Coefficient (SC). It can obtain high quality clustering results while maintaining low redundancy among clustering results, as well as meeting the task requirements of multiple clustering analysis.

Key words: heterogeneous data, multiple clustering, tensor, tensor distance, dynamically weighting, Cyber-Physical-Social System (CPSS)

摘要:

基于张量的多聚类算法(TMC)在衡量属性重要性时忽略了对象张量内部属性组合的关联性,而且在不同的特征空间选择下,固定权重策略导致所选与未选择特征空间没有完全分离。针对上述问题,提出一种基于动态加权张量距离(DWTD)的多聚类算法(DWTD-MC)。首先,为提升各特征空间属性重要性衡量的准确性,建立了自-关联张量模型;其次,构建多视图权重张量模型,在不同特征空间选择下通过动态加权策略满足多聚类分析的需求;最后,使用DWTD衡量数据点的相似性,生成最终的多聚类结果。在真实数据集上的仿真实验结果表明,DWTD-MC在杰卡德指数(JI)、邓恩指数(DI)、DB指数(DB)和轮廓系数(SC)评价指标上均优于TMC等对比算法,而且可以在获得较高质量的聚类结果的同时,使各聚类结果之间保持较低的冗余度,满足多聚类分析的任务需求。

关键词: 异构数据, 多聚类, 张量, 张量距离, 动态加权, 社会物理信息系统

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