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arXiv 2407.01247cs.CV
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多级可靠引导用于非成对多视图聚类

Multi-level Reliable Guidance for Unpaired Multi-view Clustering

School of Mathematical Sciences, Nanjing Normal University(南京师范大学数学学院);School of Computer and Electronic Information, Nanjing Normal University(南京师范大学计算机与电子信息学院);School of Computing and Information Technology, University of Wollongong(沃林戈大学计算与信息科技学院)

Like Xin, Wanqi Yang, Lei Wang, Ming Yang

AI总结:

针对非成对多视图聚类中一致性挖掘难的问题,提出MRG-UMC方法,通过多级聚类、合成视图对齐和可靠视图引导,提升聚类置信度,平均NMI提升12.95%。

摘要:

在本论文中,我们解决了非成对多视图聚类(UMC)这一具有挑战性的问题,其目标是在多个视图上利用非成对样本实现有效的联合聚类。传统的非完整多视图聚类(IMC)方法通常依赖成对样本来捕获视图间的互补信息。然而,由于UMC中缺乏成对样本,此类策略变得不切实际。尽管一些研究者尝试通过保持跨视图一致的聚类结构来解决此问题,但在聚类结构置信度较低的情况下,有效挖掘这种一致性仍然具有挑战性。因此,我们提出了一种新方法,即多级可靠引导的UMC(MRG-UMC),该方法整合了多级聚类和可靠的视图引导,从三个角度学习一致且置信的聚类结构。具体而言,视图内多级聚类利用不同级别的高置信样本对来减少边界样本的影响,从而产生更置信的聚类结构。合成视图对齐利用合成视图来减轻跨视图差异并促进一致性。跨视图引导采用可靠的视图引导策略来增强聚类效果较差的视图的聚类置信度。这三个模块在多级别上联合优化,以实现一致且置信的聚类结构。此外,理论分析验证了MRG-UMC在增强聚类置信度方面的有效性。大量实验结果表明,MRG-UMC优于最先进的UMC方法,在多视图数据集上平均NMI提升了12.95%。源代码可在https://anonymous.4open.science/r/MRG-UMC-5E20获取。

英文摘要:

In this thesis, we address the challenging problem of unpaired multi-view clustering (UMC), which aims to achieve effective joint clustering using unpaired samples observed across multiple views. Traditional incomplete multi-view clustering (IMC) methods typically rely on paired samples to capture complementary information between views. However, such strategies become impractical in the UMC due to the absence of paired samples. Although some researchers have attempted to address this issue by preserving consistent cluster structures across views, effectively mining such consistency remains challenging when the cluster structures {with low confidence}. Therefore, we propose a novel method, Multi-level Reliable Guidance for UMC (MRG-UMC), which integrates multi-level clustering and reliable view guidance to learn consistent and confident cluster structures from three perspectives. Specifically, inner-view multi-level clustering exploits high-confidence sample pairs across different levels to reduce the impact of boundary samples, resulting in more confident cluster structures. Synthesized-view alignment leverages a synthesized-view to mitigate cross-view discrepancies and promote consistency. Cross-view guidance employs a reliable view guidance strategy to enhance the clustering confidence of poorly clustered views. These three modules are jointly optimized across multiple levels to achieve consistent and confident cluster structures. Furthermore, theoretical analyses verify the effectiveness of MRG-UMC in enhancing clustering confidence. Extensive experimental results show that MRG-UMC outperforms state-of-the-art UMC methods, achieving an average NMI improvement of 12.95\% on multi-view datasets. {The source code is available at: https://anonymous.4open.science/r/MRG-UMC-5E20.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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