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- W3200703442 abstract "Faced with massive data, one-off processing without distinction is not conducive to reducing data and model complexity, and many potentially valuable local details are ignored. The decision fusion of partition blocks, such as Dempster–Shafer (DS) evidence theory, opens the gate to differentiated analysis of data. However, DS evidence theory has problems that conflict factor K cannot accurately measure conflict and counter-intuitive results can be produced in response to high-conflict evidences. Therefore, a status-relevant blocks fusion approach for operational status monitoring is proposed in this research, with three main contributions: Firstly, a status-relevant modules and blocks selection strategy based on expert knowledge and wrapper model is proposed, which reduces data complexity and improves the ability to capture local effective information. Secondly, a personalized hybrid solution is designed to implement data compression, timing analysis, and models update to cope with the scale inconsistency, temporal correlation, and dynamic characteristics of equipment operating data. Finally, a conflict measurement and management strategy combining supervised and unsupervised (CMMS-SUS) is proposed to identify and revise high-conflict evidences from different blocks to eliminate the concerns of DS evidence theory. Then, Dempster’s combination rule is used to fuse the low-conflict evidences without correction or the high-conflict evidences after correction. Furthermore, a realistic shield tunnel case in China is used to demonstrate the feasibility and effectiveness of this approach." @default.
- W3200703442 created "2021-09-27" @default.
- W3200703442 creator A5023056568 @default.
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- W3200703442 date "2021-11-01" @default.
- W3200703442 modified "2023-10-17" @default.
- W3200703442 title "A status-relevant blocks fusion approach for operational status monitoring" @default.
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- W3200703442 doi "https://doi.org/10.1016/j.engappai.2021.104455" @default.
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