DDEQs: Distributional Deep Equilibrium Models through Wasserstein Gradient Flows
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Abstract (arXiv)
Deep Equilibrium Models (DEQs) are a class of implicit neural networks that solve for a fixed point of a neural network in their forward pass. Traditionally, DEQs take sequences as inputs, but have since been applied to a variety of data. In this work, we present Distributional Deep Equilibrium Models (DDEQs), extending DEQs to discrete measure inputs, such as sets or point clouds. We provide a theoretically grounded framework for DDEQs. Leveraging Wasserstein gradient flows, we show how the forward pass of the DEQ can be adapted to find fixed points of discrete measures under permutation-invariance, and derive adequate network architectures for DDEQs. In experiments, we show that they can compete with state-of-the-art models in tasks such as point cloud classification and point cloud completion, while being significantly more parameter-efficient.
Key facts. Cited by 4 papers in the map (data through 14 Oct 2026). Builds on 61 of its 82 references that are in the map. First posted on arXiv 3 Mar 2025.
Builds on
61 of 82 references.
References · 61
- 2016Layer Normalizationcited by 5,669
- 2016PointNet: Deep Learning on Point Sets for 3D Classification and Segmentationcited by 5,248
- 2017PointNet++: Deep Hierarchical Feature Learning on Point Sets in a Metric Spacecited by 4,401
- 2018Neural Ordinary Differential Equationscited by 3,779
- 2018UMAP: Uniform Manifold Approximation and Projection for Dimension Reductioncited by 2,898
- 2013Sinkhorn Distances: Lightspeed Computation of Optimal Transportation Distancescited by 2,316
- 2020Point Transformercited by 1,470
- 2017Deep Setscited by 1,421
- 2014NICE: Non-linear Independent Components Estimationcited by 1,058
- 2019Deep Equilibrium Modelscited by 615
- 2018AtlasNet: A Papier-Mach'e Approach to Learning 3D Surface Generationcited by 539
- 2018On the Global Convergence of Gradient Descent for Over-parameterized Models using Optimal Transportcited by 426
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- 2018PCN: Point Completion Networkcited by 384
- 2019Rapid Convergence of the Unadjusted Langevin Algorithm: Isoperimetry Sufficescited by 227
- 2020Bilevel Optimization: Convergence Analysis and Enhanced Designcited by 222
- 2020Multiscale Deep Equilibrium Modelscited by 151
- 20223D Object Detection for Autonomous Driving: A Comprehensive Surveycited by 132
- 2019Maximum Mean Discrepancy Gradient Flowcited by 127
- 2019Implicit Deep Learningcited by 124
- 2018Sampling as optimization in the space of measures: The Langevin dynamics as a composite optimization problemcited by 123
- 2018Computational Optimal Transport: Complexity by Accelerated Gradient Descent Is Better Than by Sinkhorn's Algorithmcited by 112
- 2020Monotone operator equilibrium networkscited by 100
- 2020PMP-Net: Point Cloud Completion by Learning Multi-step Point Moving Pathscited by 97
- 2018Sliced-Wasserstein Flows: Nonparametric Generative Modeling via Optimal Transport and Diffusionscited by 77
- 2021On Training Implicit Modelscited by 75
- 2022Deep Equilibrium Optical Flow Estimationcited by 64
- 2022PMP-Net++: Point Cloud Completion by Transformer-Enhanced Multi-step Point Moving Pathscited by 57
- 2021Variational Wasserstein gradient flowcited by 53
- 2024Statistical optimal transportcited by 47
- 2024Point Cloud Matters: Rethinking the Impact of Different Observation Spaces on Robot Learningcited by 45
- 2022Comprehensive Review of Deep Learning-Based 3D Point Cloud Completion Processing and Analysiscited by 44
- 2023How Smooth Is Attention?cited by 44
- 2024The Elements of Differentiable Programmingcited by 43
- 2024Transformers are Universal In-context Learnerscited by 43
- 2021KALE Flow: A Relaxed KL Gradient Flow for Probabilities with Disjoint Supportcited by 37
- 2023Generative Sliced MMD Flows with Riesz Kernelscited by 37
- 2022Meta Optimal Transportcited by 28
- 2024Sliced-Wasserstein Distances and Flows on Cartan-Hadamard Manifoldscited by 28
- 2023Posterior Sampling Based on Gradient Flows of the MMD with Negative Distance Kernelcited by 25
- 2024Implicit Diffusion: Efficient Optimization through Stochastic Samplingcited by 24
- 2024Scalable Wasserstein Gradient Flow for Generative Modeling through Unbalanced Optimal Transportcited by 23
- 2023TorchDEQ: A Library for Deep Equilibrium Modelscited by 21
- 2022First-order Conditions for Optimization in the Wasserstein Spacecited by 19
- 2024(De)-regularized Maximum Mean Discrepancy Gradient Flowcited by 16
- 2023Nonparametric Generative Modeling with Conditional Sliced-Wasserstein Flowscited by 15
- 2024Wasserstein Gradient Flows for Moreau Envelopes of f-Divergences in Reproducing Kernel Hilbert Spacescited by 15
- 2022Rethinking Initialization of the Sinkhorn Algorithmcited by 14
- 2022Displacement smoothness of entropic optimal transportcited by 13
- 2024Mirror and Preconditioned Gradient Descent in Wasserstein Spacecited by 12
- 2024Theoretical Guarantees for Variational Inference with Fixed-Variance Mixture of Gaussianscited by 11
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Citing papers per year: 2025: 1; 2026: 3.
4 papers.
- 2026Measure-to-measure Regression with Transformerscited by 2
- 2025Busemann Functions in the Wasserstein Space: Existence, Closed-Forms, and Applications to Slicingcited by 1
- 2026Lipschitz Multiscale Deep Equilibrium Models: A Theoretically Guaranteed and Accelerated Approachcited by 1
- 2026Difference of Convex Programming in the Wasserstein Space with Applications to MMD Optimizationcited by 0
- 2026Difference of Convex Programming in the Wasserstein Space with Applications to MMD Optimization26 Jun 2026
- 2026Measure-to-measure Regression with Transformers27 May 2026
- 2026Lipschitz Multiscale Deep Equilibrium Models: A Theoretically Guaranteed and Accelerated Approach3 Feb 2026
- 2025Busemann Functions in the Wasserstein Space: Existence, Closed-Forms, and Applications to Slicing6 Oct 2025