Search Results for author: Danny Wood

Found 4 papers, 2 papers with code

Model-agnostic variable importance for predictive uncertainty: an entropy-based approach

no code implementations19 Oct 2023 Danny Wood, Theodore Papamarkou, Matt Benatan, Richard Allmendinger

In particular, by adapting permutation feature importance, partial dependence plots, and individual conditional expectation plots, we demonstrate that novel insights into model behaviour may be obtained and that these methods can be used to measure the impact of features on both the entropy of the predictive distribution and the log-likelihood of the ground truth labels under that distribution.

Feature Importance

A max-affine spline approximation of neural networks using the Legendre transform of a convex-concave representation

1 code implementation16 Jul 2023 Adam Perrett, Danny Wood, Gavin Brown

This work presents a novel algorithm for transforming a neural network into a spline representation.

A Unified Theory of Diversity in Ensemble Learning

1 code implementation10 Jan 2023 Danny Wood, Tingting Mu, Andrew Webb, Henry Reeve, Mikel Luján, Gavin Brown

We present a theory of ensemble diversity, explaining the nature of diversity for a wide range of supervised learning scenarios.

Ensemble Learning Open-Ended Question Answering

Bias-Variance Decompositions for Margin Losses

no code implementations26 Apr 2022 Danny Wood, Tingting Mu, Gavin Brown

We introduce a novel bias-variance decomposition for a range of strictly convex margin losses, including the logistic loss (minimized by the classic LogitBoost algorithm), as well as the squared margin loss and canonical boosting loss.

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