Skipping the Zeros in Diffusion Models for Sparse Data Generation

Fuente: arXiv
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Auteurs principaux: Ostheimer, Phil Sidney, Nagda, Mayank, Balinskyy, Andriy, Rodrigues, Gabriel Vicente, Radig, Jean, Herrmann, Carl, Mandt, Stephan, Kloft, Marius, Fellenz, Sophie
Format: Preprint
Publié: 2026
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author Ostheimer, Phil Sidney
Nagda, Mayank
Balinskyy, Andriy
Rodrigues, Gabriel Vicente
Radig, Jean
Herrmann, Carl
Mandt, Stephan
Kloft, Marius
Fellenz, Sophie
author_facet Ostheimer, Phil Sidney
Nagda, Mayank
Balinskyy, Andriy
Rodrigues, Gabriel Vicente
Radig, Jean
Herrmann, Carl
Mandt, Stephan
Kloft, Marius
Fellenz, Sophie
contents Diffusion models (DMs) excel on dense continuous data, but are not designed for sparse continuous data. They do not model exact zeros that represent the deliberate absence of a signal. As a result, they erase sparsity patterns and perform unnecessary computation on mostly zero entries. With Sparsity-Exploiting Diffusion (SED), we model only non-zero values, preserving sparsity. SED delivers computational savings while maintaining or improving generation quality by skipping zeros during training and inference. Across physics and biology benchmarks, SED matches or surpasses conventional DMs and domain-specific baselines, while vision experiments provide intuitive insights into the limitations of dense DMs and the benefits of SED.
format Preprint
id arxiv_https___arxiv_org_abs_2605_01817
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Skipping the Zeros in Diffusion Models for Sparse Data Generation
Ostheimer, Phil Sidney
Nagda, Mayank
Balinskyy, Andriy
Rodrigues, Gabriel Vicente
Radig, Jean
Herrmann, Carl
Mandt, Stephan
Kloft, Marius
Fellenz, Sophie
Machine Learning
Diffusion models (DMs) excel on dense continuous data, but are not designed for sparse continuous data. They do not model exact zeros that represent the deliberate absence of a signal. As a result, they erase sparsity patterns and perform unnecessary computation on mostly zero entries. With Sparsity-Exploiting Diffusion (SED), we model only non-zero values, preserving sparsity. SED delivers computational savings while maintaining or improving generation quality by skipping zeros during training and inference. Across physics and biology benchmarks, SED matches or surpasses conventional DMs and domain-specific baselines, while vision experiments provide intuitive insights into the limitations of dense DMs and the benefits of SED.
title Skipping the Zeros in Diffusion Models for Sparse Data Generation
topic Machine Learning
url https://arxiv.org/abs/2605.01817