Overview frequency principle/spectral bias in deep learning
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Abstract (arXiv)
Understanding deep learning is increasingly emergent as it penetrates more and more into industry and science. In recent years, a research line from Fourier analysis sheds lights on this magical "black box" by showing a Frequency Principle (F-Principle or spectral bias) of the training behavior of deep neural networks (DNNs) -- DNNs often fit functions from low to high frequency during the training. The F-Principle is first demonstrated by onedimensional synthetic data followed by the verification in high-dimensional real datasets. A series of works subsequently enhance the validity of the F-Principle. This low-frequency implicit bias reveals the strength of neural network in learning low-frequency functions as well as its deficiency in learning high-frequency functions. Such understanding inspires the design of DNN-based algorithms in practical problems, explains experimental phenomena emerging in various scenarios, and further advances the study of deep learning from the frequency perspective. Although incomplete, we provide an overview of F-Principle and propose some open problems for future research.
Key facts. Cited by 68 papers in the map (data through 7 Oct 2026). Builds on 90 of its 135 references that are in the map. First posted on arXiv 19 Jan 2022.
Builds on
90 of 135 references.
References · 90
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50 most cited of 90 All 90 (JSON)
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Citing papers per year: 2022: 8; 2023: 7; 2024: 14; 2025: 23; 2026: 16.
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- 2025WebSailor: Navigating Super-human Reasoning for Web Agentcited by 218
- 2022The Devil is in the Frequency: Geminated Gestalt Autoencoder for Self-Supervised Visual Pre-Trainingcited by 33
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- 2022On the Activation Function Dependence of the Spectral Bias of Neural Networkscited by 25
- 2022Implicit regularization of dropoutcited by 24
- 2022Explaining the physics of transfer learning a data-driven subgrid-scale closure to a different turbulent flowcited by 20
- 2022Empirical Phase Diagram for Three-layer Neural Networks with Infinite Widthcited by 17
- 2023Loss Spike in Training Neural Networkscited by 15
- 2024Addressing Spectral Bias of Deep Neural Networks by Multi-Grade Deep Learningcited by 14
- 2023Partition Speeds Up Learning Implicit Neural Representations Based on Exponential-Increase Hypothesiscited by 13
- 2025Do We Always Need the Simplicity Bias? Looking for Optimal Inductive Biases in the Wildcited by 13
- 2025An overview of condensation phenomenon in deep learningcited by 13
- 2023Multi-Grade Deep Learningcited by 12
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- 2026Comparison of a Parametric Physics-Informed Neural Network and a Tensorial Reduced-Order Model for the Shallow-Water Dam-Break Problem29 Jul 2026
- 2026Frequency Shift Physics-Informed Extreme Learning Machine for Solving High-Frequency Partial Differential Equations2 Jul 2026
- 2026Detail Consistent Stage-Wise Distillation for Efficient 3D MRI Segmentation25 May 2026
- 2026Frequency Bias and OOD Generalization in Neural Operators under a Variable-Coefficient Wave Equation13 May 2026
- 2026PILIR: Physics-Informed Local Implicit Representation1 May 2026
- 2026An adaptive wavelet-based PINN for problems with localized high-magnitude source30 Apr 2026
- 2026Frequency-aware decomposition learning for sensorless wrench estimation in vibration-rich robotic contact14 Apr 2026
- 2026Mathematical analysis of one-layer neural network with fixed biases, a new activation function and other observations9 Apr 2026
- 2026Unveiling the Mechanism of Continuous Representation Full-Waveform Inversion: A Wave Based Neural Tangent Kernel Framework23 Mar 2026
- 2026Towards 3D Scene Understanding of Gas Plumes in LWIR Hyperspectral Images Using Neural Radiance Fields5 Mar 2026
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