Residential College | false |
Status | 已發表Published |
Accurate and efficient sequential ensemble learning for highly imbalanced multi-class data | |
Vong,Chi Man1; Du,Jie2 | |
2020-08-01 | |
Source Publication | NEURAL NETWORKS |
ISSN | 0893-6080 |
Volume | 128Pages:268-278 |
Abstract | Multi-class classification for highly imbalanced data is a challenging task in which multiple issues must be resolved simultaneously, including (i) accuracy on classifying highly imbalanced multi-class data; (ii) training efficiency for large data; and (iii) sensitivity to high imbalance ratio (IR). In this paper, a novel sequential ensemble learning (SEL) framework is designed to simultaneously resolve these issues. SEL framework provides a significant property over traditional AdaBoost, in which the majority samples can be divided into multiple small and disjoint subsets for training multiple weak learners without compromising accuracy (while AdaBoost cannot). To ensure the class balance and majority-disjoint property of subsets, a learning strategy called balanced and majority-disjoint subsets division (BMSD) is developed. Unfortunately it is difficult to derive a general learner combination method (LCM) for any kind of weak learner. In this work, LCM is specifically designed for extreme learning machine, called LCM-ELM. The proposed SEL framework with BMSD and LCM-ELM has been compared with state-of-the-art methods over 16 benchmark datasets. In the experiments, under highly imbalanced multi-class data (IR up to 14K; data size up to 493K), (i) the proposed works improve the performance in different measures including G-mean, macro-F, micro-F, MAUC; (ii) training time is significantly reduced. |
Keyword | Highly Imbalanced Data Multi-class Classification Sequential Ensemble Learning |
DOI | 10.1016/j.neunet.2020.05.010 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Computer Science ; Neurosciences & Neurology |
WOS Subject | Computer Science, Artificial Intelligence ; Neurosciences |
WOS ID | WOS:000567770800003 |
Publisher | PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND |
Scopus ID | 2-s2.0-85084952908 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | DEPARTMENT OF COMPUTER AND INFORMATION SCIENCE |
Corresponding Author | Du,Jie |
Affiliation | 1.Department of Computer and Information Science,University of Macau,Macau,SAR 999078,China 2.School of Biomedical Engineering,Health Science Center,Shenzhen University,Shenzhen,518060,China |
First Author Affilication | University of Macau |
Recommended Citation GB/T 7714 | Vong,Chi Man,Du,Jie. Accurate and efficient sequential ensemble learning for highly imbalanced multi-class data[J]. NEURAL NETWORKS, 2020, 128, 268-278. |
APA | Vong,Chi Man., & Du,Jie (2020). Accurate and efficient sequential ensemble learning for highly imbalanced multi-class data. NEURAL NETWORKS, 128, 268-278. |
MLA | Vong,Chi Man,et al."Accurate and efficient sequential ensemble learning for highly imbalanced multi-class data".NEURAL NETWORKS 128(2020):268-278. |
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