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L. Bogensperger

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#machine learning Preprint Oct 2026

Spanning Diffusion and Flow-based Posterior Sampling via Exact Gaussian Conditioning

Flow-matching and diffusion models are increasingly used as priors for linear inverse problems, however, most methods are bespoke to one class of trajectory prior. Plug-and-play methods have been proposed, however these implicitly decorrelate the guided trajectory, resulting in broad priors that can struggle when data...

Teo Deveney, Lea Bogensperger, Hok-Shing Wong · 0 citations
Preprint Aug 2026

Joint Flow Matching Enables Continuous Dose-Conditioned Cell Morphing

Generative modeling has shown increasing promise for predicting cellular perturbation effects under chemical compound treatments. Existing approaches either model perturbation as a distribution-to-distribution mapping without explicit concentration handling, or treat concentration as a discrete class label, precluding...

L. Bogensperger, Manuela Merlo, Martin Baumgartner et al. · 0 citations
Jul 2026

Sparse Concept Channels in Frozen 3D CT Vision Encoders

A clear, reproducible characterization of how frozen medical encoders represent findings is provided, demonstrating direct applicability across models and outperforms published CT-CHAT on clinical efficacy and NLG metrics.

F. Nooralahzadeh, L. Bogensperger, C. Bluethgen et al. · 0 citations

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