A new subsequence similarity retrieval method based on inverted index in EAST

doi:10.1016/j.fusengdes.2022.113246

	A new subsequence similarity retrieval method based on inverted index in EAST
	Wang, Hao 1,2,3; Yuan, Qiping 2; Hu, Wenhui 2; Xiao, Bingjia 2; Ji, Zhenshan 2; Zhang, Ruirui 2; Zhang, Shuguang 1
刊名	FUSION ENGINEERING AND DESIGN
	2022-09-01
卷号	182
关键词	EAST Subsequence Similarity retrieval Inverted index Pattern recognition
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2022.113246
通讯作者	Yuan, Qiping(qpyuan@ipp.ac.cn)
英文摘要	The analysis technology of massive experimental data is one of the important concerns in the field of nuclear fusion research, and the waveform similarity retrieval is the basis of realizing data mining of discharge experiment. In this work, we proposed an efficient subsequence retrieval method for matching a selected waveform segment in the discharge signal waveform. This method accurately represents the waveform characteristics based on the slope of segment and the drop distance of segment head (DDSH). In order to improve the retrieval efficiency, an inverted index method based on the slope of segment was adopted to filter the discharge signal waveforms and then perform fine retrieving. The retrieval algorithm was implemented based on Python, and was verified with the plasma density and stored energy signals of historical experimental data from EAST mdsplus database. The test results show the retrieval efficiency is improved by 43.6% on average after using slope inverted index.
资助项目	National MCF Energy R&D Program of China[2018YFE0302100] ; National Natural Science Foundation of China[12075285] ; National Natural Science Foundation of China[U1867222] ; President Foundation of Hefei Institutes of Physical Science Chinese Academy of Sciences[YZJJ2020QN11]
WOS关键词	TIME ; SEARCH
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000858937100003
资助机构	National MCF Energy R&D Program of China ; National Natural Science Foundation of China ; President Foundation of Hefei Institutes of Physical Science Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129175]
专题	中国科学院合肥物质科学研究院
通讯作者	Yuan, Qiping
作者单位	1.Anhui Jianzhu Univ, Hefei 230022, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hao,Yuan, Qiping,Hu, Wenhui,et al. A new subsequence similarity retrieval method based on inverted index in EAST[J]. FUSION ENGINEERING AND DESIGN,2022,182.
APA	Wang, Hao.,Yuan, Qiping.,Hu, Wenhui.,Xiao, Bingjia.,Ji, Zhenshan.,...&Zhang, Shuguang.(2022).A new subsequence similarity retrieval method based on inverted index in EAST.FUSION ENGINEERING AND DESIGN,182.
MLA	Wang, Hao,et al."A new subsequence similarity retrieval method based on inverted index in EAST".FUSION ENGINEERING AND DESIGN 182(2022).