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Jiapeng Wu - IEEE Xplore Author Profile

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Data-driven fault detection in prognostic and health management research poses significant challenges, particularly with few measurements to model complex machinery health conditions. Approaches requiring data in one or many faulty conditions are impractical for actual use cases where only healthy condition data exist. Most of the existing methods for this scenario rely on feature-based representa...Show More
Data scarcity in prognostic and health management research presents a significant challenge, often hindering the performance of supervised models due to the difficulty of acquiring diverse fault mode data during prolonged faultless operation. Conversely, nominal operating condition (NOC) data, including both healthy and varied faulty data, are more readily available due to predelivery inspection. ...Show More
Anomaly detection tasks benefit from self-supervised learning techniques, where models predict or reconstruct parts of augmented input data without relying on explicit human-provided labels. However, many existing self-supervised learning methods employ data augmentation techniques without sufficient justification for their effectiveness. In this study, we present a simple but novel data augmentat...Show More