arXiv Machine Learning By Andrew A. Stirn, Abhejit Rajagopal, David A. Knowles, Grace Huynh

VampPrior Unleashed

Read the original on arXiv Machine Learning →

The paper introduces improvements to the VampPrior, a prior used in deep latent variable models. By decoupling prior and posterior covariances and replacing fixed uniform mixture weights with a Dirichlet process, the authors achieve higher model evidence and better non‑parametric clustering. Applying the enhanced prior to the single‑cell Variational Inference framework improves integration and clustering across multiple atlases while maintaining a continuous latent space.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at arXiv Machine Learning.

arXiv Machine Learning
Jun 19

Variational Consensus Monte Carlo for Bayesian Mixture

arXiv:2606. 19643v1 Announce Type: cross Abstract: Motivated by the privacy, sensitivity and sharing limitations of health data, we present a comprehensive pipeline for inference of Bayesian mixture models within a federated learning setting, i.

By Julie Fendler, Francesca L. Crowe, Tom Marshall, Sylvia Richardson, Paul D. W. Kirk
arXiv Machine Learning
Oct 12

Scalable Sparse Autoregressive Variational Inference for Non-Gaussian Spatial Fields

The paper introduces a scalable variational inference framework for latent field models with non‑Gaussian likelihoods. It mirrors the sparse nearest‑neighbor autoregressive structure of the Gaussian process prior in the variational family, employs normalizing‑flow conditionals for expressiveness, and amortizes all variational parameters through a single shared neural conditioner. The method achieves polylogarithmic per‑iteration complexity via doubly stochastic optimization with reduced ancestor sets.

By Paul F. V. Wiemann, Matthias Katzfuss
arXiv Statistics ML
Sep 2

Deep Skew-t Mixture Models

arXiv:2609.00773v1 Announce Type: cross Abstract: High-dimensional clustering is challenging when component distributions are both heavy-tailed and directionally asymmetric. We propose a deep skew-$t...

By Jinran Wu, You-Gan Wang, Geoffrey J. McLachlan