arXiv:2409.16769cs.LGcs.AI2024-09被引 1

提出动态学习率算法,提升神经网络训练稳定性

Super Level Sets and Exponential Decay: A Synergistic Approach to Stable Neural Network Training

  • 结合指数衰减与抗过拟合策略,动态调整学习率
  • 证明损失函数超水平集始终连通,保障训练一致性
  • 理论性强,适合研究优化机制或高精度模型的开发者

本文旨在通过构建一种动态学习率算法,提升神经网络优化过程的稳定性。核心贡献在于建立理论框架,证明在该算法影响下,优化景观具有由李雅普诺夫稳定性定义的独特稳定性特征。具体而言,我们证明了损失函数的超水平集在自适应学习率作用下始终保持连通性,确保训练动力学的一致性。此外,我们建立了超水平集的“等连通性”性质,使系统在不同训练条件和训练轮次间保持统一稳定性。本研究深化了对动态学习率机制的理论理解,为更高效、可靠的神经网络优化技术发展奠定基础。研究致力于形式化并验证神经网络训练中损失函数超水平集的等连通性,开辟自适应机器学习算法的新研究路径。我们利用先前理论成果,提出可有效应对复杂高维数据地形的训练机制,尤其适用于高精度与高可靠性要求的应用场景。

原文摘要 · Abstract (English)

The objective of this paper is to enhance the optimization process for neural networks by developing a dynamic learning rate algorithm that effectively integrates exponential decay and advanced anti-overfitting strategies. Our primary contribution is the establishment of a theoretical framework where we demonstrate that the optimization landscape, under the influence of our algorithm, exhibits unique stability characteristics defined by Lyapunov stability principles. Specifically, we prove that the superlevel sets of the loss function, as influenced by our adaptive learning rate, are always connected, ensuring consistent training dynamics. Furthermore, we establish the "equiconnectedness" property of these superlevel sets, which maintains uniform stability across varying training conditions and epochs. This paper contributes to the theoretical understanding of dynamic learning rate mechanisms in neural networks and also pave the way for the development of more efficient and reliable neural optimization techniques. This study intends to formalize and validate the equiconnectedness of loss function as superlevel sets in the context of neural network training, opening newer avenues for future research in adaptive machine learning algorithms. We leverage previous theoretical discoveries to propose training mechanisms that can effectively handle complex and high-dimensional data landscapes, particularly in applications requiring high precision and reliability.

神经网络优化学习率调度稳定性理论

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