A Dual-LSTM Framework Combining Change Point Detection and Remaining Useful Life Prediction. Shi, Z. & Chehade, A. Reliability Engineering & System Safety, October, 2020.
A Dual-LSTM Framework Combining Change Point Detection and Remaining Useful Life Prediction [link]Paper  doi  abstract   bibtex   
Remaining Useful Life (RUL) prediction is a key task of Condition-based Maintenance (CBM). The massive data collected from multiple sensors enables monitoring the complex systems in near real-time. However, such multiple sensors data environments pose a challenging task of combining the sensor data to infer the quality and RUL of the system. To address this task, we propose a Dual-LSTM framework that leverages Long-Short Term Memory (LSTM) for degradation analysis and RUL prediction. The Dual-LSTM relaxes the strong assumption of the fixed change point and detects the uncertain change point unit by unit at first. Then, the Dual-LSTM predicts the health index beyond the change point which can be leveraged to calculate the RUL. The proposed Dual-LSTM (i) achieves real-time high-precision RUL prediction by connecting the change point detection and RUL prediction with the health index construction, (ii) introduces a novel one-dimension health index function, (iii) leverages historical information to achieve detection and prediction tasks by characterizing both long and short-term dependencies of sensor signals through LSTM network. The effectiveness of the proposed Dual-LSTM framework is validated and compared to state-of-art benchmark methods on two publicly available turbofan engine degradation datasets.
@article{shi_dual-lstm_2020,
	title = {A {Dual}-{LSTM} {Framework} {Combining} {Change} {Point} {Detection} and {Remaining} {Useful} {Life} {Prediction}},
	issn = {0951-8320},
	url = {http://www.sciencedirect.com/science/article/pii/S0951832020307572},
	doi = {10.1016/j.ress.2020.107257},
	abstract = {Remaining Useful Life (RUL) prediction is a key task of Condition-based Maintenance (CBM). The massive data collected from multiple sensors enables monitoring the complex systems in near real-time. However, such multiple sensors data environments pose a challenging task of combining the sensor data to infer the quality and RUL of the system. To address this task, we propose a Dual-LSTM framework that leverages Long-Short Term Memory (LSTM) for degradation analysis and RUL prediction. The Dual-LSTM relaxes the strong assumption of the fixed change point and detects the uncertain change point unit by unit at first. Then, the Dual-LSTM predicts the health index beyond the change point which can be leveraged to calculate the RUL. The proposed Dual-LSTM (i) achieves real-time high-precision RUL prediction by connecting the change point detection and RUL prediction with the health index construction, (ii) introduces a novel one-dimension health index function, (iii) leverages historical information to achieve detection and prediction tasks by characterizing both long and short-term dependencies of sensor signals through LSTM network. The effectiveness of the proposed Dual-LSTM framework is validated and compared to state-of-art benchmark methods on two publicly available turbofan engine degradation datasets.},
	language = {en},
	urldate = {2020-10-05},
	journal = {Reliability Engineering \& System Safety},
	author = {Shi, Zunya and Chehade, Abdallah},
	month = oct,
	year = {2020},
	keywords = {Change point detection, Long short-term memory, Neural networks, Prognosis, Remaining useful life, Sensor fusion},
	pages = {107257},
}

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