Feature Learning in Neural Networks

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ข้อมูลเชิงลึก - Feature Learning in Neural Networks

The Role of Gradient Descent in Feature Learning: Aligning Weights with Pre-Activation Tangent Features in Neural Networks

The Neural Feature Ansatz (NFA), which observes a correlation between the Gram matrix of weights (NFM) and the average gradient outer product (AGOP) in trained neural networks, emerges from the alignment of weight matrices with pre-activation tangent kernel features driven by gradient descent.

Feature Learning in Two-Layer Neural Networks: A Local Analysis of Gradient Descent with Regularization

This research paper demonstrates that gradient descent, when applied to two-layer neural networks with a carefully regularized objective, can learn useful features not only in the early stages of training but also in the later stages, leading to convergence to the ground-truth features.

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