Hashing-Based Undersampling Ensemble for Imbalanced Pattern Classification Problems
By Wing W. Y. Ng, Jianjun Zhang, Xing Tian, Tongwen Rong, Sam Kwong. 2020
54 citations recorded by the source corpus.
Undersampling is a popular method to solve imbalanced classification problems. However, sometimes it may remove too many majority samples which may lead to loss of informative samples. In this article, the hashing-based undersampling ensemble (HUE) is proposed to deal with this problem by constructing diversified training subspaces for undersampling. Samples in the majority class are divided into many subspaces by a hashing method. Each subspace corresponds to a training subset which consists of most of the samples from this subspace and a few samples from surrounding subspaces. These training subsets are used to train an ensemble of classification and regression tree classifiers with all minority class samples. The proposed method is tested on 25 UCI datasets against state-of-the-art methods. Experimental results show that the HUE outperforms other methods and yields good results on highly imbalanced datasets.
Subfields: Artificial Intelligence, Electrical and Electronic Engineering, Optimization & Training
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Citations in the corpus
- Regionwise Generative Adversarial Image Inpainting for Large Missing Areas (2019, background): “Notable successes include image classification [27]–[29], image generation [30]–[32], representation learning [33], [34], image retrieval [35], [36], object detection [37]–[39], video applications [40], and image translation [41].”