提出新方法,精准识别数据噪声程度并提升多视图聚类鲁棒性。
Quality-Aware Robust Multi-View Clustering for Heterogeneous Observation Noise
- 通过重建差异量化每条数据的噪声强度,生成细粒度质量评分。
- 在特征与融合层面分别加权,抑制噪声传播并构建高质量共识。
- 特别适合噪声强度不一的真实数据场景,性能超越现有方法。
深度多视图聚类虽取得显著进展,但在真实场景中仍易受复杂噪声影响。现有方法多依赖二元假设(完全干净或完全损坏),忽视了噪声强度连续变化的异质性。为此,本文提出质量感知鲁棒多视图聚类框架QARMVC。该方法利用信息瓶颈机制提取视图内在语义以实现重建,并基于重建偏差衡量噪声对语义完整性的影响,进而精确量化细粒度污染强度并生成实例级质量评分。这些评分被嵌入分层学习策略:在特征层面,设计质量加权对比目标,自适应抑制噪声传播;在融合层面,通过质量加权聚合构建高质量全局共识,并利用互信息最大化对齐与校正局部视图。在五个基准数据集上的大量实验表明,QARMVC在异质噪声场景下持续优于当前最优基线。
原文摘要 · Abstract (English)
Deep multi-view clustering has achieved remarkable progress but remains vulnerable to complex noise in real-world applications. Existing noisy robust methods predominantly rely on a simplified binary assumption, treating data as either perfectly clean or completely corrupted. This overlooks the prevalent existence of heterogeneous observation noise, where contamination intensity varies continuously across data. To bridge this gap, we propose a novel framework termed Quality-Aware Robust Multi-View Clustering (QARMVC). Specifically, QARMVC employs an information bottleneck mechanism to extract intrinsic semantics for view reconstruction. Leveraging the insight that noise disrupts semantic integrity and impedes reconstruction, we utilize the resulting reconstruction discrepancy to precisely quantify fine-grained contamination intensity and derive instance-level quality scores. These scores are integrated into a hierarchical learning strategy: at the feature level, a quality-weighted contrastive objective is designed to adaptively suppress the propagation of noise; at the fusion level, a high-quality global consensus is constructed via quality-weighted aggregation, which is subsequently utilized to align and rectify local views via mutual information maximization. Extensive experiments on five benchmark datasets demonstrate that QARMVC consistently outperforms state-of-the-art baselines, particularly in scenarios with heterogeneous noise intensities.
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