Papers › Calibration of Deep Probabilistic Models with Decoupled Bayesian Neural Networks

Calibration of Deep Probabilistic Models with Decoupled Bayesian Neural Networks

23 Aug 2019arXiv:1908.08972archive 2025-07-28

Juan Maroñas, Roberto Paredes, Daniel Ramos

Deep Neural Networks (DNNs) have achieved state-of-the-art accuracy performance in many tasks. However, recent works have pointed out that the outputs provided by these models are not well-calibrated, seriously limiting their use in critical decision scenarios. In this work, we propose to use a decoupled Bayesian stage, implemented with a Bayesian Neural Network (BNN), to map the uncalibrated probabilities provided by a DNN to calibrated ones, consistently improving calibration. Our results evidence that incorporating uncertainty provides more reliable probabilistic models, a critical condition for achieving good calibration. We report a generous collection of experimental results using high-accuracy DNNs in standardized image classification benchmarks, showing the good performance, flexibility and robust behavior of our approach with respect to several state-of-the-art calibration methods. Code for reproducibility is provided.

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jmaronas/DecoupledBayesianCalibration.pytorch officialmentioned in paperpytorchGPL-3.0 report

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Image Classificationimage-classification

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