论文标题

局部稀疏不完整的多视图集群

Localized Sparse Incomplete Multi-view Clustering

论文作者

Liu, Chengliang, Wu, Zhihao, Wen, Jie, Huang, Chao, Xu, Yong

论文摘要

旨在解决不完整的多视图数据中缺少部分视图的聚类问题的多视图聚类,近年来受到了越来越多的关注。尽管已经开发了许多方法,但大多数方法都无法灵活地处理不完整的多视图数据,而这些数据具有任意丢失的视图,或者不考虑视图之间信息失衡的负面因素。此外,某些方法并未完全探索所有不完整视图的局部结构。为了解决这些问题,本文提出了一种简单但有效的方法,称为局部稀疏不完整的多视图聚类(LSIMVC)。与现有方法不同,LSIMVC打算通过优化稀疏的正则和新颖的图形嵌入式多视图矩阵分解模型来从不完整的多视图数据中学习稀疏且结构化的潜在表示。具体而言,在基于基质分解的这种新型模型中,引入了基于L1的稀疏约束,以获得稀疏的低维单个表示和稀疏共识表示。此外,引入了一种新颖的本地图嵌入项以学习结构化共识表示。与现有作品不同,我们的本地图嵌入术语汇总了图形嵌入任务和共识表示任务中的简洁术语。此外,为了减少多视图学习的不平衡因素,将自适应加权学习方案引入LSIMVC。最后,给出了有效的优化策略来解决我们提出的模型的优化问题。在六个不完整的多视图数据库上执行的全面实验结果证明,我们的LSIMVC的性能优于最新的IMC方法。该代码可在https://github.com/justsmart/lsimvc中找到。

Incomplete multi-view clustering, which aims to solve the clustering problem on the incomplete multi-view data with partial view missing, has received more and more attention in recent years. Although numerous methods have been developed, most of the methods either cannot flexibly handle the incomplete multi-view data with arbitrary missing views or do not consider the negative factor of information imbalance among views. Moreover, some methods do not fully explore the local structure of all incomplete views. To tackle these problems, this paper proposes a simple but effective method, named localized sparse incomplete multi-view clustering (LSIMVC). Different from the existing methods, LSIMVC intends to learn a sparse and structured consensus latent representation from the incomplete multi-view data by optimizing a sparse regularized and novel graph embedded multi-view matrix factorization model. Specifically, in such a novel model based on the matrix factorization, a l1 norm based sparse constraint is introduced to obtain the sparse low-dimensional individual representations and the sparse consensus representation. Moreover, a novel local graph embedding term is introduced to learn the structured consensus representation. Different from the existing works, our local graph embedding term aggregates the graph embedding task and consensus representation learning task into a concise term. Furthermore, to reduce the imbalance factor of incomplete multi-view learning, an adaptive weighted learning scheme is introduced to LSIMVC. Finally, an efficient optimization strategy is given to solve the optimization problem of our proposed model. Comprehensive experimental results performed on six incomplete multi-view databases verify that the performance of our LSIMVC is superior to the state-of-the-art IMC approaches. The code is available in https://github.com/justsmart/LSIMVC.

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