## 2 Materials and Methods
### Methods
#### 2.2.1 Overview
The data presented in this paper are available from the MCC5-THU Gerbox Datasets at [[https://github.com/lluzy0708/MCC5-THU-Gearbox-Benchmark-Datasets](https://github.com/lluzy0708/MCC5-THU-Gearbox-Benchmark-Datasets)]([https://github.com/lluzy0708/MCC5-THU-Gearbox-Benchmark-Datasets](https://github.com/lluzy0708/MCC5-THU-Gearbox-Benchmark-Datasets)) (accessed on 2 May 2025) and the HUST Gerbox Dataset at [[https://github.com/CHAOZHAO-1/HUSTgearbox-dataset](https://github.com/CHAOZHAO-1/HUSTgearbox-dataset)]([https://github.com/CHAOZHAO-1/HUSTgearbox-dataset](https://github.com/CHAOZHAO-1/HUSTgearbox-dataset)) (accessed on 2 May 2025). The authors declare no conflicts of interest. ## Abbreviations

The following abbreviations are used in this manuscript: \begin{tabular}{l l} CNN & Convolutional neural network \\ RNN & Recurrent neural network \\ SE & Squeeze and excitation \\ FFT & Fast Fourier Transform \\ GAF & Gramian Angular Field \\ LSTM & Long Short-Term Memory \\ ViT & Vision Transformer \\ DWFE & Deep feature extractor \\
2D-RoPE & Two-dimensional rotary position encoding \\ PPA & Piecewise Aggregate Approximation \\ GASF & Gramian Angular Summation Field \\ GADF & Gramian Angular Difference Field \\ \end{tabular} 

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