期刊
SWARM AND EVOLUTIONARY COMPUTATION
卷 54, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.swevo.2020.100663
关键词
Feature selection; Swarm intelligence; Particle swarm optimization; Ant colony optimization; Classification
资金
- Marsden Fund of New Zealand Government [VUW1509, VUW1615]
- Science for Technological Innovation Challenge (SfTI) fund [E3603/2903]
- University Research Fund at Victoria University of Wellington [216378/3764, 223805/3986]
One of the major problems in Big Data is a large number of features or dimensions, which causes the issue of the curse of dimensionality when applying machine learning, especially classification algorithms. Feature selection is an important technique which selects small and informative feature subsets to improve the learning performance. Feature selection is not an easy task due to its large and complex search space. Recently, swarm intelligence techniques have gained much attention from the feature selection community because of their simplicity and potential global search ability. However, there has been no comprehensive surveys on swarm intelligence for feature selection in classification which is the most widely investigated area in feature selection. Only a few short surveys is this area are still lack of in-depth discussions on the state-of-the-art methods, and the strengths and limitations of existing methods, particularly in terms of the representation and search mechanisms, which are two key components in adapting swarm intelligence to address feature selection problems. This paper presents a comprehensive survey on the state-of-the-art works applying swarm intelligence to achieve feature selection in classification, with a focus on the representation and search mechanisms. The expectation is to present an overview of different kinds of state-of-the-art approaches together with their advantages and disadvantages, encourage researchers to investigate more advanced methods, provide practitioners guidances for choosing the appropriate methods to be used in real-world scenarios, and discuss potential limitations and issues for future research.
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