Title
Stochastic Sensitivity Measure-Based Noise Filtering and Oversampling Method for Imbalanced Classification Problems
Abstract
Class imbalance problems occur in many real-world applications. Oversampling methods are effective to handle class imbalance issues by replicating or generating new minority samples to rebalance the class distribution. However, current methods directly using all minority samples will also use noisy samples to generate new samples which may lead to more severe class overlapping and introduce more noisy samples. In this work, we propose a stochastic sensitivity measure-based noise filtering and oversampling method, i.e. the SSMNFOS, to improve the robustness of oversampling method with respect to noisy samples. Samples yielding high stochastic sensitivities are identified as noises by a neural network ensemble and will not participate in the oversampling method for rebalancing the class distribution. Comprehensive experimental studies are carried out on ten datasets with five different noise levels to analyze the effectiveness of the proposed method. Experimental results show that the SSMNFOS outperforms state-of-the-art methods with 95% statistical significance.
Year
DOI
Venue
2018
10.1109/SMC.2018.00078
2018 IEEE International Conference on Systems, Man, and Cybernetics (SMC)
Keywords
Field
DocType
stochastic sensitivity measure,imbalanced learning,noise filtering,oversampling
Pattern recognition,Oversampling,Computer science,Filter (signal processing),Robustness (computer science),Imbalance problems,Artificial intelligence,Artificial neural network,Machine learning
Conference
ISSN
ISBN
Citations 
1062-922X
978-1-5386-6651-7
1
PageRank 
References 
Authors
0.35
11
2
Name
Order
Citations
PageRank
Jianjun Zhang193.48
Wing W. Y. Ng252856.12