期刊
IEEE TRANSACTIONS ON EMERGING TOPICS IN COMPUTING
卷 10, 期 2, 页码 704-718出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TETC.2020.3034495
关键词
Machine learning; Feature extraction; Gene expression; Programming; Genetic programming; Sociology; Statistics; Genetic programming; gene expression programming; high dimension; classification; low sample size; ensemble learning
资金
- Fundamental Research Funds for the Central Universities [D2191200]
- Program for Guangdong Introducing Innovative and Enterpreneurial Teams [2017ZT07X183]
- Guangdong Natural Science Foundation Research Team [2018B030312003]
This article proposes an ensemble-based genetic programming classification framework, SE-GEP, which addresses the multiclass classification problem on high dimension and low sample size (HDLSS) data. SE-GEP achieves better classification accuracy compared to other genetic programming methods, and is competitive with other representative machine learning methods for multiclass classification in HDLSS data.
Multiclass classification is one of the most fundamental tasks in data mining. However, traditional data mining methods rely on the model assumption, they generally can suffer from the overfitting problem on high dimension and low sample size (HDLSS) data. Trying to address multiclass classification problems on HDLSS data from another perspective, we utilize Genetic Programming (GP), an intrinsic evolutionary classification algorithm that can implement feature construction automatically without model assumption. This article develops an ensemble-based genetic programming classification framework, the Sigmoid-based Ensemble Gene Expression Programming (SE-GEP). To relieve the problem of output conflict in GP-based multiclass classifiers, the proposed method employs a flexible probability representation with continuous relaxation to better integrate the output of all the binary classifiers, an effective data division strategy to further enhance the ensemble performance, and a novel sampling strategy to refine the existing GP-based binary classifier. The experiment results indicate that SE-GEP can attain better classification accuracy compared to other GP methods. Moreover, the comparison with other representative machine learning methods indicates that SE-GEP is a competitive method for multiclass classification in HDLSS data.
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