Label noise filtering techniques to improve monotonic classification

NEUROCOMPUTING

卷:353

Article

Cano, Jose-Ramon¹  Luengo, Julian²  Garcia, Salvador² 

[1] Univ Jaen, EPS Linares, Dept Comp Sci, Campus Cient Tecnol Linares,Cinturon Sur S-N, Jaen 23700, Spain

[2] Univ Granada, Dept Comp Sci & Artificial Intelligence, E-18071 Granada, Spain

关键词: Ordinal classification;    Monotonic classification;    Preprocessing;    Noise filtering;   

DOI  :  10.1016/j.neucom.2018.05.131

来源: Elsevier

【 摘 要 】

The monotonic ordinal classification has increased the interest of researchers and practitioners within machine learning community in the last years. In real applications, the problems with monotonicity constraints are very frequent. To construct predictive monotone models from those problems, many classifiers require as input a data set satisfying the monotonicity relationships among all samples. Changing the class labels of the data set (relabeling) is useful for this. Relabeling is assumed to be an important building block for the construction of monotone classifiers and it is proved that it can improve the predictive performance. In this paper, we will address the construction of monotone datasets considering as noise the cases that do not meet the monotonicity restrictions. For the first time in the specialized literature, we propose the use of noise filtering algorithms in a preprocessing stage with a double goal: to increase both the monotonicity index of the models and the accuracy of the predictions for different monotonic classifiers. The experiments are performed over 12 datasets coming from classification and regression problems and show that our scheme improves the prediction capabilities of the monotonic classifiers instead of being applied to original and relabeled datasets. In addition, we have included the analysis of noise filtering process in the particular case of wine quality classification to understand its effect in the predictive models generated. (C) 2019 Elsevier B.V. All rights reserved.

【 授权许可】

Free