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Diverse Deep Matrix Factorization With Hypergraph Regularization for Multi-View Data Representation
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作者 Haonan Huang Guoxu Zhou +2 位作者 Naiyao Liang Qibin Zhao Shengli Xie 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2023年第11期2154-2167,共14页
Deep matrix factorization(DMF)has been demonstrated to be a powerful tool to take in the complex hierarchical information of multi-view data(MDR).However,existing multiview DMF methods mainly explore the consistency o... Deep matrix factorization(DMF)has been demonstrated to be a powerful tool to take in the complex hierarchical information of multi-view data(MDR).However,existing multiview DMF methods mainly explore the consistency of multi-view data,while neglecting the diversity among different views as well as the high-order relationships of data,resulting in the loss of valuable complementary information.In this paper,we design a hypergraph regularized diverse deep matrix factorization(HDDMF)model for multi-view data representation,to jointly utilize multi-view diversity and a high-order manifold in a multilayer factorization framework.A novel diversity enhancement term is designed to exploit the structural complementarity between different views of data.Hypergraph regularization is utilized to preserve the high-order geometry structure of data in each view.An efficient iterative optimization algorithm is developed to solve the proposed model with theoretical convergence analysis.Experimental results on five real-world data sets demonstrate that the proposed method significantly outperforms stateof-the-art multi-view learning approaches. 展开更多
关键词 deep matrix factorization(DMF) diversity hypergraph regularization multi-view data representation(MDR)
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基于改进经验小波变换和改进多视角深度矩阵分解的直流配电网故障检测方案 被引量:11
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作者 洪翠 连淑婷 +1 位作者 黄晟 郭谋发 《电力自动化设备》 EI CSCD 北大核心 2022年第6期8-15,29,共9页
为快速检测及可靠识别直流配电网故障,提出一种基于改进经验小波变换和改进多视角深度矩阵分解的直流配电网故障检测方案。通过最小二乘法非线性拟合故障电流局部的相频谱函数,基于此在一定的条件下修改经验小波函数的相频响应,使之尽... 为快速检测及可靠识别直流配电网故障,提出一种基于改进经验小波变换和改进多视角深度矩阵分解的直流配电网故障检测方案。通过最小二乘法非线性拟合故障电流局部的相频谱函数,基于此在一定的条件下修改经验小波函数的相频响应,使之尽可能与故障电流的局部相频特性相匹配;运用改进经验小波变换分解电流,计算细节分量c_(3)的模极大值,构造故障检测判据;设计一种权重自学习网络,依据数据对分类任务的重要性分配不同的权重,嵌套于多视角深度矩阵分解模型前端,运用改进多视角深度矩阵分解模型对电流分量c_(1)—c_(3)、极间电压u_(dc)这4个视角的数据进行故障特征提取,通过软分配层实现故障的分类。仿真测试结果表明,所提故障检测方案能够满足故障检测速动性、可靠性的要求,故障分类准确度高,为后续故障处理奠定了良好基础。 展开更多
关键词 直流配电网 故障检测与分类 改进经验小波变换 改进多视角深度矩阵分解
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