Robust convex biclustering with a tuning-free method

Yifan Chen, Chunyin Lei, Chuanquan Li, Haiqiang Ma and Ningyuan Hu

Journal of Applied Statistics, 2025, vol. 52, issue 2, 271-286

Abstract: Biclustering is widely used in different kinds of fields including gene information analysis, text mining, and recommendation system by effectively discovering the local correlation between samples and features. However, many biclustering algorithms will collapse when facing heavy-tailed data. In this paper, we propose a robust version of convex biclustering algorithm with Huber loss. Yet, the newly introduced robustification parameter brings an extra burden to selecting the optimal parameters. Therefore, we propose a tuning-free method for automatically selecting the optimal robustification parameter with high efficiency. The simulation study demonstrates the more fabulous performance of our proposed method than traditional biclustering methods when encountering heavy-tailed noise. A real-life biomedical application is also presented. The R package RcvxBiclustr is available at https://github.com/YifanChen3/RcvxBiclustr.

Date: 2025
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DOI: 10.1080/02664763.2024.2367143

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