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Journal of University of Chinese Academy of Sciences ›› 2022, Vol. 39 ›› Issue (3): 289-301.DOI: 10.7523/j.ucas.2020.0056

• Research Articles •     Next Articles

Robust ordinal mislabel logistic regression based on γ-divergence

GUO Meijun1,2, REN Mingyang1,2, LI Shiming3, ZHANG Sanguo1,2   

  1. 1 School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    2 Key Laboratory of Big Data Mining and Knowledge Management, Chinese Academy of Sciences, Beijing 100049, China;
    3 Beijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology & Visual Science Key Laboratory, Beijing Institute of Ophthalmology, Capital Medical University, Beijing 100730, China
  • Received:2020-01-03 Revised:2020-04-13 Online:2022-05-15
  • Supported by:
    Supported by University of Chinese Academy of Sciences (Y95401TXX2),Beijing Natural Science Foundation (Z190004),and Key Program of Joint Funds of the National Natural Science Foundation of China (U19B2040)

Abstract: Ordinal multi-classification methods have been studied widely. Traditional ordinal multi-classification methods assume that the sample label is not mislabeled. Due to the complexity of the real data and the limited artificial experience, it is unrealistic to obtain completely accurate labels, in which conventional methods perform poorly. In this article, we propose an ordinal mislabel logistic regression method based on γ-divergence, which possessing strong robustness when dealing with ordinal mislabeled response data. That is to say, when mislabeled, the weight of the sample in parameter estimation equation diminish compared to the case that the sample is properly labeled. Our method not only possesses the robustness but also can ignore the mislabel probabilities in the model. We construct the model by minimizing γ-divergence estimation and solve the model by gradient descent algorithm. Both simulation studies and real data analysis demonstrate that the method, namely robust ordinal mislabel logistic regression, is efficient to analyze ordinal mislabeled response data.

Key words: γ-divergence, logistic regression, mislabeled response, ordinal classification, robustness

CLC Number: