Unraveling the Hessian: A Key to Smooth Convergence in Loss Function Landscapes
- URL: http://arxiv.org/abs/2409.11995v1
- Date: Wed, 18 Sep 2024 14:04:15 GMT
- Title: Unraveling the Hessian: A Key to Smooth Convergence in Loss Function Landscapes
- Authors: Nikita Kiselev, Andrey Grabovoy,
- Abstract summary: We theoretically analyze the convergence of the loss landscape in a fully connected neural network and derive upper bounds for the difference in loss function values when adding a new object to the sample.
Our empirical study confirms these results on various datasets, demonstrating the convergence of the loss function surface for image classification tasks.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The loss landscape of neural networks is a critical aspect of their training, and understanding its properties is essential for improving their performance. In this paper, we investigate how the loss surface changes when the sample size increases, a previously unexplored issue. We theoretically analyze the convergence of the loss landscape in a fully connected neural network and derive upper bounds for the difference in loss function values when adding a new object to the sample. Our empirical study confirms these results on various datasets, demonstrating the convergence of the loss function surface for image classification tasks. Our findings provide insights into the local geometry of neural loss landscapes and have implications for the development of sample size determination techniques.
Related papers
- Dynamical loss functions shape landscape topography and improve learning in artificial neural networks [0.9208007322096533]
We show how to transform cross-entropy and mean squared error into dynamical loss functions.
We show how they significantly improve validation accuracy for networks of varying sizes.
arXiv Detail & Related papers (2024-10-14T16:27:03Z) - A topological description of loss surfaces based on Betti Numbers [8.539445673580252]
We provide a topological measure to evaluate loss complexity in the case of multilayer neural networks.
We find that certain variations in the loss function or model architecture, such as adding an $ell$ regularization term or skip connections in a feedforward network, do not affect loss in specific cases.
arXiv Detail & Related papers (2024-01-08T11:20:04Z) - On the Dynamics Under the Unhinged Loss and Beyond [104.49565602940699]
We introduce the unhinged loss, a concise loss function, that offers more mathematical opportunities to analyze closed-form dynamics.
The unhinged loss allows for considering more practical techniques, such as time-vary learning rates and feature normalization.
arXiv Detail & Related papers (2023-12-13T02:11:07Z) - Critical Investigation of Failure Modes in Physics-informed Neural
Networks [0.9137554315375919]
We show that a physics-informed neural network with a composite formulation produces highly non- learned loss surfaces that are difficult to optimize.
We also assess the training both approaches on two elliptic problems with increasingly complex target solutions.
arXiv Detail & Related papers (2022-06-20T18:43:35Z) - FuNNscope: Visual microscope for interactively exploring the loss
landscape of fully connected neural networks [77.34726150561087]
We show how to explore high-dimensional landscape characteristics of neural networks.
We generalize observations on small neural networks to more complex systems.
An interactive dashboard opens up a number of possible application networks.
arXiv Detail & Related papers (2022-04-09T16:41:53Z) - Taxonomizing local versus global structure in neural network loss
landscapes [60.206524503782006]
We show that the best test accuracy is obtained when the loss landscape is globally well-connected.
We also show that globally poorly-connected landscapes can arise when models are small or when they are trained to lower quality data.
arXiv Detail & Related papers (2021-07-23T13:37:14Z) - Topological obstructions in neural networks learning [67.8848058842671]
We study global properties of the loss gradient function flow.
We use topological data analysis of the loss function and its Morse complex to relate local behavior along gradient trajectories with global properties of the loss surface.
arXiv Detail & Related papers (2020-12-31T18:53:25Z) - An Equivalence between Loss Functions and Non-Uniform Sampling in
Experience Replay [72.23433407017558]
We show that any loss function evaluated with non-uniformly sampled data can be transformed into another uniformly sampled loss function.
Surprisingly, we find in some environments PER can be replaced entirely by this new loss function without impact to empirical performance.
arXiv Detail & Related papers (2020-07-12T17:45:24Z) - Influence Functions in Deep Learning Are Fragile [52.31375893260445]
influence functions approximate the effect of samples in test-time predictions.
influence estimates are fairly accurate for shallow networks.
Hessian regularization is important to get highquality influence estimates.
arXiv Detail & Related papers (2020-06-25T18:25:59Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.