Provable Gradient Variance Guarantees for Black-Box Variational Inference
Provable Gradient Variance Guarantees for Black-Box Variational Inference
复制标题
黑盒变分推理的可证明梯度方差保证
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
Justin Domke
中科院分区:
文献类型:
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作者:
Justin Domke
Recent variational inference methods use stochastic gradient estimators whose variance is not well understood. Theoretical guarantees for these estimators are important to understand when these methods will or will not work. This paper gives bounds for the common "reparameterization" estimators when the target is smooth and the variational family is a location-scale distribution. These bounds are unimprovable and thus provide the best possible guarantees under the stated assumptions.