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Simulation-based inference using surjective sequential neural likelihood estimation
Feb. 26, 2024, 5:44 a.m. | Simon Dirmeier, Carlo Albert, Fernando Perez-Cruz
cs.LG updates on arXiv.org arxiv.org
Abstract: We present Surjective Sequential Neural Likelihood (SSNL) estimation, a novel method for simulation-based inference in models where the evaluation of the likelihood function is not tractable and only a simulator that can generate synthetic data is available. SSNL fits a dimensionality-reducing surjective normalizing flow model and uses it as a surrogate likelihood function which allows for conventional Bayesian inference using either Markov chain Monte Carlo methods or variational inference. By embedding the data in a …
abstract arxiv cs.lg data dimensionality evaluation flow function generate inference likelihood novel simulation stat.me stat.ml synthetic synthetic data tractable type
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