Search Results for author: Robert Hu

Found 8 papers, 5 papers with code

Doubly Robust Kernel Statistics for Testing Distributional Treatment Effects

1 code implementation9 Dec 2022 Jake Fawkes, Robert Hu, Robin J. Evans, Dino Sejdinovic

These improved estimators are inspired by doubly robust estimators of the causal mean, using a similar form within the kernel space.

Causal Inference counterfactual +1

Explaining Preferences with Shapley Values

1 code implementation26 May 2022 Robert Hu, Siu Lun Chau, Jaime Ferrando Huertas, Dino Sejdinovic

While preference modelling is becoming one of the pillars of machine learning, the problem of preference explanation remains challenging and underexplored.

Generalized Variational Inference in Function Spaces: Gaussian Measures meet Bayesian Deep Learning

1 code implementation12 May 2022 Veit D. Wild, Robert Hu, Dino Sejdinovic

We develop a framework for generalized variational inference in infinite-dimensional function spaces and use it to construct a method termed Gaussian Wasserstein inference (GWI).

Gaussian Processes Uncertainty Quantification +1

Giga-scale Kernel Matrix Vector Multiplication on GPU

no code implementations2 Feb 2022 Robert Hu, Siu Lun Chau, Dino Sejdinovic, Joan Alexis Glaunès

Kernel matrix-vector multiplication (KMVM) is a foundational operation in machine learning and scientific computing.

RKHS-SHAP: Shapley Values for Kernel Methods

no code implementations18 Oct 2021 Siu Lun Chau, Robert Hu, Javier Gonzalez, Dino Sejdinovic

Feature attribution for kernel methods is often heuristic and not individualised for each prediction.

Survival Regression with Proper Scoring Rules and Monotonic Neural Networks

2 code implementations26 Mar 2021 David Rindt, Robert Hu, David Steinsaltz, Dino Sejdinovic

We consider frequently used scoring rules for right-censored survival regression models such as time-dependent concordance, survival-CRPS, integrated Brier score and integrated binomial log-likelihood, and prove that neither of them is a proper scoring rule.

regression

Large Scale Tensor Regression using Kernels and Variational Inference

no code implementations11 Feb 2020 Robert Hu, Geoff K. Nicholls, Dino Sejdinovic

We outline an inherent weakness of tensor factorization models when latent factors are expressed as a function of side information and propose a novel method to mitigate this weakness.

regression Variational Inference

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