arXiv Machine Learning By Ziyun Chen, Jerry Li, Kevin Tian, Yusong Zhu

Sample-Optimal Estimation of the Fr\'echet Inception Distance

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The paper investigates the sample complexity of estimating the Fréchet Inception Distance (FID) between high‑dimensional Gaussian distributions when one distribution is known. It establishes tight bias and variance bounds for the empirical plug‑in estimator, shows how higher‑order extrapolation reduces bias, and introduces a new Relative Taylor Debiasing (RTD) algorithm that achieves optimal sample complexity. Experiments on synthetic data and ImageNet confirm the theoretical predictions and demonstrate RTD’s superior accuracy with limited samples.

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arXiv Machine Learning
4d ago

Computational and Statistical Hardness of Calibration Distance

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