中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Time-Series Classification Based on Fusion Features of Sequence and Visualization

文献类型:期刊论文

作者Wang, BQ (Wang, Baoquan)[ 1,2,3 ]; Jiang, TH (Jiang, Tonghai)[ 1,3 ]; Zhou, X (Zhou, Xi)[ 1,3 ]; Ma, B (Ma, Bo)[ 1,2,3 ]; Zhao, F (Zhao, Fan)[ 1,3 ]; Wang, Y (Wang, Yi)[ 1,3 ]
刊名APPLIED SCIENCES-BASEL
出版日期2020
卷号10期号:12页码:1-25
关键词time series data classification fusion feature visualization area graph attention
ISSN号2076-3417
DOI10.3390/app10124124
英文摘要

For the task of time-series data classification (TSC), some methods directly classify raw time-series (TS) data. However, certain sequence features are not evident in the time domain and the human brain can extract visual features based on visualization to classify data. Therefore, some researchers have converted TS data to image data and used image processing methods for TSC. While human perceptionconsists of a combination of human senses from different aspects, existing methods only use sequence features or visualization features. Therefore, this paper proposes a framework for TSC based on fusion features (TSC-FF) of sequence features extracted from raw TS and visualization features extracted from Area Graphs converted from TS. Deep learning methods have been proven to be useful tools for automatically learning features from data; therefore, we use long short-term memory with an attention mechanism (LSTM-A) to learn sequence features and a convolutional neural network with an attention mechanism (CNN-A) for visualization features, in order to imitate the human brain. In addition, we use the simplest visualization method of Area Graph for visualization features extraction, avoiding loss of information and additional computational cost. This article aims to prove that using deep neural networks to learn features from different aspects and fusing them can replace complex, artificially constructed features, as well as remove the bias due to manually designed features, in order to avoid the limitations of domain knowledge. Experiments on several open data sets show that the framework achieves promising results, compared with other methods.

WOS记录号WOS:000553894700001
源URL[http://ir.xjipc.cas.cn/handle/365002/7404]  
专题新疆理化技术研究所_多语种信息技术研究室
通讯作者Jiang, TH (Jiang, Tonghai)[ 1,3 ]
作者单位1.Xinjiang Lab Minor Speech & Language Informat Pro, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714
Wang, BQ ,Jiang, TH ,Zhou, X ,et al. Time-Series Classification Based on Fusion Features of Sequence and Visualization[J]. APPLIED SCIENCES-BASEL,2020,10(12):1-25.
APA Wang, BQ ,Jiang, TH ,Zhou, X ,Ma, B ,Zhao, F ,&Wang, Y .(2020).Time-Series Classification Based on Fusion Features of Sequence and Visualization.APPLIED SCIENCES-BASEL,10(12),1-25.
MLA Wang, BQ ,et al."Time-Series Classification Based on Fusion Features of Sequence and Visualization".APPLIED SCIENCES-BASEL 10.12(2020):1-25.

入库方式: OAI收割

来源:新疆理化技术研究所

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