Search Results for author: Gaëtan Frusque

Found 5 papers, 1 papers with code

Semi-Supervised Health Index Monitoring with Feature Generation and Fusion

no code implementations5 Dec 2023 Gaëtan Frusque, Ismail Nejjar, Majid Nabavi, Olga Fink

The Health Index (HI) is crucial for evaluating system health, aiding tasks like anomaly detection and predicting remaining useful life for systems demanding high safety and reliability.

Semi-supervised Anomaly Detection Supervised Anomaly Detection

NNG-Mix: Improving Semi-supervised Anomaly Detection with Pseudo-anomaly Generation

1 code implementation20 Nov 2023 Hao Dong, Gaëtan Frusque, Yue Zhao, Eleni Chatzi, Olga Fink

While AD is typically treated as an unsupervised learning task due to the high cost of label annotation, it is more practical to assume access to a small set of labeled anomaly samples from domain experts, as is the case for semi-supervised anomaly detection.

Data Augmentation Fault Detection +4

Smart filter aided domain adversarial neural network for fault diagnosis in noisy industrial scenarios

no code implementations4 Jul 2023 Baorui Dai, Gaëtan Frusque, Tianfu Li, Qi Li, Olga Fink

We validate the effectiveness of the proposed SFDANN method based on two fault diagnosis cases: one involving fault diagnosis of bearings in noisy environments and another involving fault diagnosis of slab tracks in a train-track-bridge coupling vibration system, where the transfer task involves transferring from numerical simulations to field measurements.

Unsupervised Domain Adaptation

Acceleration-guided Acoustic Signal Denoising Framework Based on Learnable Wavelet Transform Applied to Slab Track Condition Monitoring

no code implementations11 May 2022 Baorui Dai, Gaëtan Frusque, Qi Li, Olga Fink

Therefore, only acoustic sensors (non-intrusive) need to be installed during the application phase, which is convenient and crucial for the condition monitoring of safety-critical infrastructure.

Denoising

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