Title
Unsupervised Cross-View Feature Selection on incomplete data
Abstract
Unsupervised multi-view feature selection (UMV-FS) deals with the dimension reduction problem wherein instances are unlabeled and represented by heterogeneous features. Existing mainstream UMV-FS methods incorporate instance-wise view interactions based on graphs to guide feature selection, in which within-view selection decisions are independently learned to piece up a global feature subset. However, this strategy induces a globally sub-optimal feature selection decision in the sense that unexpected redundant features across views proliferate. Furthermore, existing studies are performed in view-complete frameworks, which hardly satisfies real-world applications. To address these issues, we propose a novel cross-view feature selection (CVFS) framework in an unsupervised manner, which can process large-scale/streaming data. This is the first attempt to approach incomplete multi-view feature selection by devising and fusing two-wise view interactions. Specifically, we incorporate the traditional instance-wise view interactions based on graphs to find discriminative features in each view and model a novel kind of feature-wise view interactions to enforce selection diversity and reduce feature redundancy. These techniques can yield a globally optimal feature subset across all views. Comprehensive experiments validate the effectiveness and efficiency of the proposed CVFS.
Year
DOI
Venue
2021
10.1016/j.knosys.2021.107595
Knowledge-Based Systems
Keywords
DocType
Volume
Multi-view feature selection,Unsupervised learning,Incomplete views,Feature redundancy,View diversity
Journal
234
ISSN
Citations 
PageRank 
0950-7051
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Yuanyuan Xu1316.79
Yu Yin200.34
Jun Wang300.34
Jinmao Wei4236.46
Jian Liu501.01
Lina Yao698193.63
Wenjie Zhang71616105.67