Understanding the Monotonicity of the Sparsity Objective Function | HackerNoon
Briefly

The proposed methodology integrates time domain quadratic convolutional filters and frequency domain optimizations, leveraging QCNN's cyclic feature extraction to enhance fault diagnosis in machinery.
Our computational experiments clearly demonstrate that the ClassBD filters outperform conventional methods, especially under various noise conditions, significantly improving classification results and feature extraction.
Read at Hackernoon
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