The Hessian perspective into the Nature of Convolutional Neural Networks
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Abstract (arXiv)
While Convolutional Neural Networks (CNNs) have long been investigated and applied, as well as theorized, we aim to provide a slightly different perspective into their nature -- through the perspective of their Hessian maps. The reason is that the loss Hessian captures the pairwise interaction of parameters and therefore forms a natural ground to probe how the architectural aspects of CNN get manifested in its structure and properties. We develop a framework relying on Toeplitz representation of CNNs, and then utilize it to reveal the Hessian structure and, in particular, its rank. We prove tight upper bounds (with linear activations), which closely follow the empirical trend of the Hessian rank and hold in practice in more general settings. Overall, our work generalizes and establishes the key insight that, even in CNNs, the Hessian rank grows as the square root of the number of parameters.
Key facts. Cited by 10 papers in the map (data through 7 Oct 2026). Builds on 30 of its 62 references that are in the map. First posted on arXiv 16 May 2023.
Builds on
30 of 62 references.
References · 30
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18 more
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Built on by
Citing papers per year: 2023: 2; 2024: 5; 2025: 3.
10 papers.
- 2024Neglected Hessian component explains mysteries in Sharpness regularizationcited by 12
- 2024What Does It Mean to Be a Transformer? Insights from a Theoretical Hessian Analysiscited by 9
- 2024Theoretical characterisation of the Gauss-Newton conditioning in Neural Networkscited by 5
- 2023A PAC-Bayesian Perspective on the Interpolating Information Criterioncited by 4
- 2024Spectral Norm of Convolutional Layers with Circular and Zero Paddingscited by 4
- 2025Logits are All We Need to Adapt Closed Modelscited by 4
- 2025Better Hessians Matter: Studying the Impact of Curvature Approximations in Influence Functionscited by 2
- 2024Unraveling the Hessian: A Key to Smooth Convergence in Loss Function Landscapescited by 1
- 2025Accelerating Neural Network Training Along Sharp and Flat Directionscited by 1
- 2023Towards guarantees for parameter isolation in continual learningcited by 0
- 2025Better Hessians Matter: Studying the Impact of Curvature Approximations in Influence Functions27 Sep 2025
- 2025Accelerating Neural Network Training Along Sharp and Flat Directions17 May 2025
- 2025Logits are All We Need to Adapt Closed Models3 Feb 2025
- 2024Theoretical characterisation of the Gauss-Newton conditioning in Neural Networks4 Nov 2024
- 2024What Does It Mean to Be a Transformer? Insights from a Theoretical Hessian Analysis14 Oct 2024
- 2024Unraveling the Hessian: A Key to Smooth Convergence in Loss Function Landscapes18 Sep 2024
- 2024Spectral Norm of Convolutional Layers with Circular and Zero Paddings31 Jan 2024
- 2024Neglected Hessian component explains mysteries in Sharpness regularization19 Jan 2024
- 2023A PAC-Bayesian Perspective on the Interpolating Information Criterion13 Nov 2023
- 2023Towards guarantees for parameter isolation in continual learning2 Oct 2023