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The evolution of a deep neural network trained by the gradient descent can be described by its neural tangent kernel (NTK) as introduced in [20], where it was proven that in the infinite width limit the NTK converges to an explicit limiting…

机器学习 · 计算机科学 2019-09-19 Jiaoyang Huang , Horng-Tzer Yau

We derive finite width and depth corrections for the Neural Tangent Kernel (NTK) of ResNets and DenseNets. Our analysis reveals that finite size residual architectures are initialized much closer to the "kernel regime" than their vanilla…

机器学习 · 计算机科学 2020-06-18 Etai Littwin , Tomer Galanti , Lior Wolf

Recent work by Jacot et al. (2018) has shown that training a neural network using gradient descent in parameter space is related to kernel gradient descent in function space with respect to the Neural Tangent Kernel (NTK). Lee et al. (2019)…

机器学习 · 统计学 2022-05-26 Soufiane Hayou , Arnaud Doucet , Judith Rousseau

Neural Tangent Kernel (NTK) theory is widely used to study the dynamics of infinitely-wide deep neural networks (DNNs) under gradient descent. But do the results for infinitely-wide networks give us hints about the behavior of real…

机器学习 · 计算机科学 2022-02-02 Mariia Seleznova , Gitta Kutyniok

The study of Neural Tangent Kernels (NTKs) has provided much needed insight into convergence and generalization properties of neural networks in the over-parametrized (wide) limit by approximating the network using a first-order Taylor…

机器学习 · 统计学 2023-02-02 Alistair Shilton , Sunil Gupta , Santu Rana , Svetha Venkatesh

The study of deep neural networks (DNNs) in the infinite-width limit, via the so-called neural tangent kernel (NTK) approach, has provided new insights into the dynamics of learning, generalization, and the impact of initialization. One key…

机器学习 · 计算机科学 2021-06-16 Sina Alemohammad , Zichao Wang , Randall Balestriero , Richard Baraniuk

Recent works have examined theoretical and empirical properties of wide neural networks trained in the Neural Tangent Kernel (NTK) regime. Given that biological neural networks are much wider than their artificial counterparts, we consider…

机器学习 · 计算机科学 2022-07-14 Akhilan Boopathy , Ila Fiete

Recent research shows that the following two models are equivalent: (a) infinitely wide neural networks (NNs) trained under l2 loss by gradient descent with infinitesimally small learning rate (b) kernel regression with respect to so-called…

机器学习 · 计算机科学 2019-10-29 Sanjeev Arora , Simon S. Du , Zhiyuan Li , Ruslan Salakhutdinov , Ruosong Wang , Dingli Yu

We investigate the mathematical foundations of neural networks in the infinite-width regime through the Neural Tangent Kernel (NTK). We propose the NTK-Eigenvalue-Controlled Residual Network (NTK-ECRN), an architecture integrating Fourier…

Deep residual network architectures have been shown to achieve superior accuracy over classical feed-forward networks, yet their success is still not fully understood. Focusing on massively over-parameterized, fully connected residual…

机器学习 · 计算机科学 2021-04-08 Yuval Belfer , Amnon Geifman , Meirav Galun , Ronen Basri

Neural Tangent Kernel (NTK) is widely used to analyze overparametrized neural networks due to the famous result by Jacot et al. (2018): in the infinite-width limit, the NTK is deterministic and constant during training. However, this result…

机器学习 · 计算机科学 2022-07-22 Mariia Seleznova , Gitta Kutyniok

A major factor in the success of deep neural networks is the use of sophisticated architectures rather than the classical multilayer perceptron (MLP). Residual networks (ResNets) stand out among these powerful modern architectures. Previous…

机器学习 · 计算机科学 2021-05-25 Tom Tirer , Joan Bruna , Raja Giryes

A recent breakthrough in deep learning theory shows that the training of over-parameterized deep neural networks can be characterized by a kernel function called \textit{neural tangent kernel} (NTK). However, it is known that this type of…

机器学习 · 计算机科学 2020-10-07 Zixiang Chen , Yuan Cao , Quanquan Gu , Tong Zhang

The Neural Tangent Kernel (NTK) characterizes the behavior of infinitely wide neural nets trained under least squares loss by gradient descent. However, despite its importance, the super-quadratic runtime of kernel methods limits the use of…

机器学习 · 计算机科学 2021-07-28 Amir Zandieh

We analyze the convergence of the averaged stochastic gradient descent for overparameterized two-layer neural networks for regression problems. It was recently found that a neural tangent kernel (NTK) plays an important role in showing the…

机器学习 · 统计学 2021-06-14 Atsushi Nitanda , Taiji Suzuki

The Neural Tangent Kernel (NTK), defined as $\Theta_\theta^f(x_1, x_2) = \left[\partial f(\theta, x_1)\big/\partial \theta\right] \left[\partial f(\theta, x_2)\big/\partial \theta\right]^T$ where $\left[\partial f(\theta,…

机器学习 · 计算机科学 2022-06-20 Roman Novak , Jascha Sohl-Dickstein , Samuel S. Schoenholz

Yang (2020a) recently showed that the Neural Tangent Kernel (NTK) at initialization has an infinite-width limit for a large class of architectures including modern staples such as ResNet and Transformers. However, their analysis does not…

机器学习 · 计算机科学 2021-05-11 Greg Yang , Etai Littwin

We analyze recurrent neural networks with diagonal hidden-to-hidden weight matrices, trained with gradient descent in the supervised learning setting, and prove that gradient descent can achieve optimality \emph{without} massive…

机器学习 · 计算机科学 2024-10-11 Semih Cayci , Atilla Eryilmaz

Neural tangent kernels (NTKs) are a powerful tool for analyzing deep, non-linear neural networks. In the infinite-width limit, NTKs can easily be computed for most common architectures, yielding full analytic control over the training…

机器学习 · 计算机科学 2026-02-16 Max Guillen , Philipp Misof , Jan E. Gerken

The Neural Tangent Kernel (NTK) is an important milestone in the ongoing effort to build a theory for deep learning. Its prediction that sufficiently wide neural networks behave as kernel methods, or equivalently as random feature models,…

机器学习 · 计算机科学 2020-06-25 Maxim Samarin , Volker Roth , David Belius
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