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Saurabh Amin

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#machine learning Preprint Oct 2026

Taylor Representations for Model-Free RL in Networked MDPs

In Networked Markov Decision Processes, transition dynamics are often unknown and the state--action space grows rapidly with the number of agents. In this setting, Taylor representations naturally approximate $Q$-functions, but a naive order-$n$ expansion over $N$ agents requires $\Theta(N^n)$ coefficients. We justify...

Salah Chikhi, Abdelhaq Chaoui, A. Ozdaglar et al. · 0 citations
#artificial intelligence Preprint Sep 2026

TACIT: Optimization Models that Learn from Their Mistakes

Real-world optimization problems are difficult to model accurately because many objectives and constraints reside in domain experts'tacit knowledge, making them hard to formalize. As a result, optimization models often contain miscalibrated objectives, missing constraints, or omitted decision variables, leading to solu...

Maxime Bouscary, Marco Molinaro, Si-Rui Li et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Denoising as Projection: Constrained Optimization with Gradient-Guided Diffusion

The proposed update incorporates the objective gradient inside the denoising step, yielding an inference-time method that uses only a pretrained denoiser and gradient evaluations and is analyzed as an inexact projected-gradient method for constrained optimization over learned feasible geometries.

R. Zhang, Jiawei Zhang, Gioele Zardini et al. · 0 citations

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