Dual-level Affinity Induced Embedding-free Multi-view Clustering with Joint-alignment
Keywords: Mulit-view Clustering, Large-scale Clustering, Anchor Clustering
Abstract: Despite remarkable progress, there still exist several limitations in current multi-view clustering (MVC) techniques. Specially, they generally focus only on the affinity relationship between anchors and samples, while overlooking that between anchors. Moreover, due to the lack of data labels, the cluster order is inconsistent across views and accordingly anchors encounter misalignment issue, which will confuse the graph structure and disorganize cluster representation. Even worse, it typically brings variance during forming embedding, degenerating the stability of clustering results. In response to these concerns, in the paper we propose a MVC approach named DLA-EF-JA. Concretely, we explicitly exploit the geometric properties between anchors via self-expression learning skill, and utilize topology learning strategy to feed captured anchor-anchor features into anchor-sample graph so as to explore the manifold structure hidden within samples more adequately. To reduce the misalignment risk, we introduce a permutation mechanism for each view to jointly rearrange anchors according to respective view characteristics. Besides not involving selecting the baseline view, it also can coordinate with anchors in the unified framework and thereby facilitate the learning of anchors. Further, rather than forming embedding and then performing spectral partitioning, based on the criterion that samples and clusters should be hard assignment, we manage to construct the cluster labels directly from original samples using the binary strategy, not only preserving the data diversity but avoiding variance. Experiments on multiple publicly available datasets confirm the effectiveness of our DLA-EF-JA.
Primary Area: unsupervised, self-supervised, semi-supervised, and supervised representation learning
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Submission Number: 195
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