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Covariance-Informed Subspace an Adaptive Gradient-Free Input Dimension Reduction Method for Bayesian Inference

N Polette, OL Maître, P Sochala, A Gesret - arXiv preprint arXiv …, 2026 - arxiv.org
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… However, the gradient may be unavailable or expensive to compute accurately, for instance in the case of simulation-based inference. Inspired by approaches based on …

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