A Robust Classifier under Missing-Not-at-Random Sample Selection Bias
A Robust Classifier under Missing-Not-at-Random Sample Selection Bias
复制标题
缺失非随机样本选择偏差下的鲁棒分类器
DOI:
10.1109/bigdata59044.2023.10386877
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Wu, Xintao
中科院分区:
文献类型:
--
作者:
Mai, Huy;Huang, Wen;Du, Wei;Wu, Xintao
The shift between the training and testing distributions is commonly due to sample selection bias, a type of bias caused by non-random sampling of examples to be included in the training set. Although there are many approaches proposed to learn a classifier under sample selection bias, few address the case where a subset of labels in the training set are missing-not-at-random (MNAR) as a result of the selection process. In statistics, Greene’s method formulates this type of sample selection with logistic regression as the prediction model. However, we find that simply integrating this method into a robust classification framework is not effective for this bias setting. In this paper, we propose BiasCorr, an algorithm that improves on Greene’s method by modifying the original training set in order for a classifier to learn under MNAR sample selection bias. We provide theoretical guarantee for the improvement of BiasCorr over Greene’s method by analyzing its bias. Experimental results on real-world datasets demonstrate that BiasCorr produces robust classifiers and can be extended to outperform state-of-the-art classifiers that have been proposed to train under sample selection bias.
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影响因子:
0.8
作者:
Lung-fei Lee
通讯作者:
Lung-fei Lee
DOI:
10.1109/bigdata55660.2022.10021107
发表时间:
2022
期刊:
2022 IEEE International Conference on Big Data (Big Data
影响因子:
--
作者:
Du, Wei;Wu, Xintao;Tong, Hanghang
通讯作者:
Tong, Hanghang
DOI:
--
发表时间:
2009
期刊:
影响因子:
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作者:
J. Terza
通讯作者:
J. Terza
DOI:
--
发表时间:
2022
期刊:
International Conference on Learning Representations
影响因子:
--
作者:
Xinting Hu;Yulei Niu;C. Miao;Xiansheng Hua;Hanwang Zhang
通讯作者:
Hanwang Zhang
DOI:
10.1145/3459637.3482104
发表时间:
2021
期刊:
30th ACM International Conference on Information & Knowledge Management
影响因子:
--
作者:
Du, Wei;Wu, Xintao
通讯作者:
Wu, Xintao