Convergence Analysis for Deep Sparse Coding via Convolutional Neural Networks

• URL: http://arxiv.org/abs/2408.05540v2
• Date: Fri, 29 Nov 2024 10:29:20 GMT
• Title: Convergence Analysis for Deep Sparse Coding via Convolutional Neural Networks
• Authors: Jianfei Li, Han Feng, Ding-Xuan Zhou,
• Abstract summary: We explore intersections between sparse coding and deep learning to enhance our understanding of feature extraction capabilities. We derive convergence rates for convolutional neural networks (CNNs) in their ability to extract sparse features. Inspired by the strong connection between sparse coding and CNNs, we explore training strategies to encourage neural networks to learn more sparse features.
• Score: 7.956678963695681
• License:
• Abstract: In this work, we explore intersections between sparse coding and deep learning to enhance our understanding of feature extraction capabilities in advanced neural network architectures. We begin by introducing a novel class of Deep Sparse Coding (DSC) models and establish thorough theoretical analysis of their uniqueness and stability properties. By applying iterative algorithms to these DSC models, we derive convergence rates for convolutional neural networks (CNNs) in their ability to extract sparse features. This provides a strong theoretical foundation for the use of CNNs in sparse feature learning tasks. We additionally extend the convergence analysis to more general neural network architectures, including those with diverse activation functions, as well as self-attention and transformer-based models. This broadens the applicability of our findings to a wide range of deep learning methods for deep sparse feature extraction. Inspired by the strong connection between sparse coding and CNNs, we also explore training strategies to encourage neural networks to learn more sparse features. Through numerical experiments, we demonstrate the effectiveness of these approaches, providing valuable insights for the design of efficient and interpretable deep learning models.

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