arXiv Machine Learning By Mert Sehri, Merve Ertargin, Ozal Yildirim, Ahmet Orhan, Patrick Dumond

Deep Learning Approach to Bearing and Induction Motor Fault Diagnosis via Data Fusion

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The paper presents a deep learning framework that uses Convolutional Neural Networks to analyze accelerometer and microphone data for diagnosing bearing and induction motor faults. It further employs a Long Short-Term Memory network to fuse these sensor streams, demonstrating the advantages of data fusion. The authors advocate for multi‑model diagnosis and encourage the collection of diverse multi‑sensor datasets, such as acoustic and accelerometer recordings, for constant‑speed data collection.

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arXiv Machine Learning
Sep 24

When Labels Are Scarce: An Oscillatory State Space Model for Vibration Diagnosis

The paper introduces DualRes, a compact oscillatory state‑space model designed for vibration‑based fault diagnosis when labeled data are scarce and computational resources are limited. DualRes integrates two spectral views of vibration and employs selective oscillatory memory to learn how long to retain temporal patterns, resulting in a lightweight encoder with only 39,528 parameters. Evaluations on six bearing datasets and a gearbox benchmark show that DualRes outperforms nine competing methods across most label budgets, achieving significant gains in macro‑F1, faster inference, and reduced storage requirements.

By Mainak Mallick, Seung-Kyum Choi