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Tree Bandits for Generative Bayes
April 17, 2024, 4:41 a.m. | Sean O'Hagan, Jungeum Kim, Veronika Rockova
cs.LG updates on arXiv.org arxiv.org
Abstract: In generative models with obscured likelihood, Approximate Bayesian Computation (ABC) is often the tool of last resort for inference. However, ABC demands many prior parameter trials to keep only a small fraction that passes an acceptance test. To accelerate ABC rejection sampling, this paper develops a self-aware framework that learns from past trials and errors. We apply recursive partitioning classifiers on the ABC lookup table to sequentially refine high-likelihood regions into boxes. Each box is …
abstract arxiv bayes bayesian computation cs.lg framework generative generative models however inference likelihood paper prior sampling small stat.co stat.me test tool tree type
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