Abstract
Learning from imbalanced data is a great challenge when we use machine learning techniques to solve real-world problems. Imbalanced data can result in a classifier’s sub-optimal performance. Moreover, the distribution of the testing data may differ from that of the training data, thus the true mis-classification costs is hard to predict at the time of learning. In this paper, we present a comparative study on various sampling techniques in terms of their effectiveness in improving machine learning performance against class imbalanced data sets. In particular, we evaluate ten sampling techniques such as random sampling, cluster-based sampling, and SMOTE. Two widely used machine learning algorithms are applied to train the base classifiers. For the purpose of evaluation, a number of data sets from different domains are used and the results are analysed based on different metrics.
Supported by Guangdong Power Grid Research Project 030000QQ00180019.
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Sui, Y., Yu, M., Hong, H., Pan, X. (2019). Learning from Imbalanced Data: A Comparative Study. In: Meng, W., Furnell, S. (eds) Security and Privacy in Social Networks and Big Data. SocialSec 2019. Communications in Computer and Information Science, vol 1095. Springer, Singapore. https://doi.org/10.1007/978-981-15-0758-8_20
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DOI: https://doi.org/10.1007/978-981-15-0758-8_20
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