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Riccardo Barbano

3 accepted papers

2026

Solving Inverse Problems with Flow-based Models via Model Predictive Control

ICML 2026poster

Flow-based generative models provide strong unconditional priors for inverse problems, but guiding their dynamics for conditional generation remains challenging. Recent work casts training-free conditional generation in flow models as an optimal control problem; however, solving the resulting trajec…

Cited by 0SourceScholar
2024

DEFT: Efficient Fine-tuning of Diffusion Models by Learning the Generalised $h$-transform

NeurIPS 2024poster

Generative modelling paradigms based on denoising diffusion processes have emerged as a leading candidate for conditional sampling in inverse problems. In many real-world applications, we often have access to large, expensively trained unconditional diffusion models, which we aim to exploit for imp…

2023

Sampling-based inference for large linear models, with application to linearised Laplace

ICLR 2023poster

Large-scale linear models are ubiquitous throughout machine learning, with contemporary application as surrogate models for neural network uncertainty quantification; that is, the linearised Laplace method. Alas, the computational cost associated with Bayesian linear models constrains this method's…