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20 results for “Diffusion processes”

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cs.LGcs.ITstat.MLTheoreticalRecentJul 24, 2026

From Score Approximation to Distribution Approximation in Score-Based Diffusion Models

Lan V. Truong

This paper establishes a connection between neural network approximation of score functions and approximation of probability distributions generated by reverse diffusion models.

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stat.MLcs.LGEmpiricalRecentJul 23, 2026

Transformer-based Diffusion models for Hydrological Time Series Probabilistic Imputation and Forecasting

Ferdinand Bhavsar, Lionel Benoit, Maxime Savatier, Edith Gabriel

This paper investigates the application of transformer-based diffusion models for simulating and reconstructing hydrological time series using data from six sites in North-East France.

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stat.MLcs.AIcs.LGTheoreticalRecentJul 8, 2026

DiPhon: Diffusion on Graphons for Scalable Graph Generation

Sergio Rozada, Yiming Qin, Manuel Madeira, Pascal Frossard +1 more

This paper introduces DiPhon, a diffusion framework for size-scalable graph generation, using a continuous diffusion process on the graphon space and a discretized graph-level process.

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stat.MLcs.LGRecentJun 2, 2026

A Quantitative Approximation Framework for Flow Distillation in Diffusion Models

Weiguo Gao, Ming Li, Lei Shi, Hanfei Zhou

The paper develops a quantitative framework to analyze and improve flow distillation in diffusion models, providing stability guarantees and suggesting non-uniform time scheduling to reduce approximat…

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cs.LGcs.AIRecentMay 31, 2026

Strong Stochastic Flow Maps

Sam McCallum, Zander W. Blasingame, Timothy Herschell, Niklas Rindtorff +2 more

The paper introduces Strong Stochastic Flow Maps (SSFMs), a novel framework that directly learns the strong solution map of additive-noise Stochastic Differential Equations (SDEs), enabling few-step s…

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cs.AIcs.LGRecentMay 29, 2026

From Noise to Control: Parameterized Diffusion Policies

Renhao Zhang, Haotian Fu, Mingxi Jia, George Konidaris +2 more

The Parameterized Diffusion Policy (PDP) framework transforms diffusion models from general stochastic generators into precise, steerable tools for learning and adapting complex robotic behaviors by e…

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cs.LGcs.AIEmpiricalRecentJun 18, 2026

How Transparent is DiffusionGemma?

Joshua Engels, Callum McDougall, Bilal Chughtai, Janos Kramar +10 more

This paper investigates the transparency of DiffusionGemma, a model with a larger fraction of computation in a continuous latent space, and shows that it can be made more transparent by mapping inform…

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stat.MLcs.LGmath.NATheoreticalRecentJul 9, 2026

Score Accuracy Along the Forward Diffusion Does Not Certify Numerical Stability in Diffusion Sampling

Yiwei Zhou

This paper shows that small forward-marginal error in score matching does not guarantee numerical stability, and constructs a smooth score field with small forward-marginal error but diverging moments…

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cs.LGcs.AIcs.CLTheoreticalRecentJul 6, 2026

What Does a Discrete Diffusion Model Learn?

Rodrigo Casado Noguerales, Bernhard Schölkopf, Thomas Hofmann, Aran Raoufi

This paper derives the Oracle Distance theorem for discrete diffusion models and proves that the negative ELBO is equal to the data entropy plus the path KL from the oracle reverse process to the lear…

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cs.CVcs.AIcs.LGRecentMay 27, 2026

Residualized Temporal Sparse Autoencoders for Interpreting Diffusion Models

Calvin Yeung, Prathyush Poduval, Ali Zakeri, Zhuowen Zou +1 more

The paper introduces residualized temporal Sparse Autoencoders (SAEs) to analyze the full spatiotemporal structure of activations generated during the iterative denoising process of diffusion models,…

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stat.MLcs.CRcs.LGRecentMay 22, 2026

On the Stability of Spherical Hellinger-Kantorovich Flows and Their Implications for Differential Privacy

Aratrika Mustafi, Soumya Mukherjee

This paper develops a perturbation theory for spherical Hellinger-Kantorovich (SHK) gradient flows, providing explicit, time-dependent bounds on divergence metrics to guarantee differential privacy fo…

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math.PRstat.APstat.MLTheoreticalRecentJul 22, 2026

High Minima of Gaussian Processes: Overshoots and Minimizer Locations

Enkelejd Hashorva, Svyatoslav Novikov

The paper shows that the scaled overshoot of a minimum value in a Gaussian process converges to an exponential random variable as the minimum value increases, and identifies the limiting measure as an…

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cs.NEmath.APmath.PRRecentJun 4, 2026

Quantifying Uncertainty In Wide Two-Layer Neural Networks: On The Law Of The Limiting Fluctuation Process

Arnaud Descours, Arnaud Guillin, Geoffrey Lacour, Manon Michel +2 more

This paper develops a novel, computationally efficient method to quantify the uncertainty in wide neural network predictions by characterizing the limiting random fluctuations using stochastic evoluti…

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math.PRcs.AIcs.NITheoreticalRecentJul 3, 2026

An AI-Assisted Solution to the Signed BAR Conjecture: Uniqueness in the Harrison--Reiman Class and a Completely-$\mathcal{S}$ Class Obstruction

Yiping Lu, Youheng Zhu

This paper resolves the finite-signed uniqueness problem for a multidimensional reflected diffusion using pathwise differentiability and feasible directional differentiability.

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cs.CLcs.AIcs.LGRecentJun 4, 2026

Self-Augmenting Retrieval for Diffusion Language Models

Paul Jünger, Justin Lovelace, Linxi Zhao, Dongyoung Go +1 more

The paper introduces SARDI, a novel, training-free framework that uses low-confidence 'lookahead' tokens generated during the denoising process of discrete diffusion language models to dynamically gui…

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math.NAmath.OCstat.MLTheoreticalRecentJul 18, 2026

A Deep Second-Order Stochastic Residual Method for Fully Nonlinear Parabolic PDEs

Zhenhua Zhao, Jihao Long

Introduce Deep Second-Order Stochastic Residual Method (D2SRM) for high-dimensional, Hessian-dependent fully nonlinear parabolic PDEs, establish well-posedness, and develop population-level convergenc…

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