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Takuo Matsubara

2 accepted papers

2024

Wasserstein Gradient Boosting: A Framework for Distribution-Valued Supervised Learning

NeurIPS 2024poster

Gradient boosting is a sequential ensemble method that fits a new weaker learner to pseudo residuals at each iteration. We propose Wasserstein gradient boosting, a novel extension of gradient boosting, which fits a new weak learner to alternative pseudo residuals that are Wasserstein gradients of lo…

2023

TCE: A Test-Based Approach to Measuring Calibration Error

UAI 2023poster

This paper proposes a new metric to measure the calibration error of probabilistic binary classifiers, called test-based calibration error (TCE). TCE incorporates a novel loss function based on a statistical test to examine the extent to which model predictions differ from probabilities estimated fr…