袁爱红和游梦博博士研究小组在无监督特征研究方面取得进展

论文题目：Convex Non-Negative Matrix Factorization With Adaptive Graph for Unsupervised Feature Selection

作       者：Aihong Yuan, Mengbo You, Dongjian He and Xuelong Li

期刊名称：IEEE Transactions on Cybernetics（中科院1区top期刊，CCF B）

发表时间：2020年11月

论文摘要：

 Unsupervised feature selection (UFS) aims to remove the redundant information and select the most representative feature subset from the original data, so it occupies a core position for high-dimensional data preprocessing. Many proposed approaches use self-expression to explore the correlation between the data samples or use pseudo label matrix learning to learn the mapping between the data and labels. Furthermore, the existing methods have tried to add constraints to either of these two modules to reduce the redundancy, but no prior literature embeds them into a joint model to select the most representative features by the computed top ranking scores. To address the aforementioned issue, this article presents a novel UFS method via a convex non-negative matrix factorization with an adaptive graph constraint (CNAFS). Through convex matrix factorization with adaptive graph constraint, it can dig up the correlation between the data and keep the local manifold structure of the data. To our knowledge, it is the first work that integrates pseudo label matrix learning into the self-expression module and optimizes them simultaneously for the UFS solution. Besides, two different manifold regularizations are constructed for the pseudolabel matrix and the encoding matrix to keep the local geometrical structure. Eventually, extensive experiments on the benchmark datasets are conducted to prove the effectiveness of our method. The source code is available at: https://github.com/misteru/CNAFS.

论文链接：https://ieeexplore.ieee.org/document/9271922