Search Results for author: Benjamin Letham

Found 10 papers, 6 papers with code

Response Time Improves Choice Prediction and Function Estimation for Gaussian Process Models of Perception and Preferences

no code implementations9 Jun 2023 Michael Shvartsman, Benjamin Letham, Stephen Keeley

Models for human choice prediction in preference learning and psychophysics often consider only binary response data, requiring many samples to accurately learn preferences or perceptual detection thresholds.

Look-Ahead Acquisition Functions for Bernoulli Level Set Estimation

1 code implementation18 Mar 2022 Benjamin Letham, Phillip Guan, Chase Tymms, Eytan Bakshy, Michael Shvartsman

We demonstrate a clear benefit to using this new class of acquisition functions on benchmark problems, and on a challenging real-world task of estimating a high-dimensional contrast sensitivity function.

Sparse Bayesian Optimization

1 code implementation3 Mar 2022 Sulin Liu, Qing Feng, David Eriksson, Benjamin Letham, Eytan Bakshy

Bayesian optimization (BO) is a powerful approach to sample-efficient optimization of black-box objective functions.

Bayesian Optimization Recommendation Systems

Re-Examining Linear Embeddings for High-Dimensional Bayesian Optimization

1 code implementation NeurIPS 2020 Benjamin Letham, Roberto Calandra, Akshara Rai, Eytan Bakshy

We show empirically that properly addressing these issues significantly improves the efficacy of linear embeddings for BO on a range of problems, including learning a gait policy for robot locomotion.

Bayesian Optimization Misconceptions +1

BoTorch: A Framework for Efficient Monte-Carlo Bayesian Optimization

2 code implementations NeurIPS 2020 Maximilian Balandat, Brian Karrer, Daniel R. Jiang, Samuel Daulton, Benjamin Letham, Andrew Gordon Wilson, Eytan Bakshy

Bayesian optimization provides sample-efficient global optimization for a broad range of applications, including automatic machine learning, engineering, physics, and experimental design.

Experimental Design

Bayesian Optimization for Policy Search via Online-Offline Experimentation

no code implementations1 Apr 2019 Benjamin Letham, Eytan Bakshy

To alleviate these constraints, we augment online experiments with an offline simulator and apply multi-task Bayesian optimization to tune live machine learning systems.

Bayesian Optimization BIG-bench Machine Learning

Practical Transfer Learning for Bayesian Optimization

2 code implementations6 Feb 2018 Matthias Feurer, Benjamin Letham, Frank Hutter, Eytan Bakshy

When hyperparameter optimization of a machine learning algorithm is repeated for multiple datasets it is possible to transfer knowledge to an optimization run on a new dataset.

Bayesian Optimization Gaussian Processes +3

Constrained Bayesian Optimization with Noisy Experiments

no code implementations21 Jun 2017 Benjamin Letham, Brian Karrer, Guilherme Ottoni, Eytan Bakshy

Randomized experiments are the gold standard for evaluating the effects of changes to real-world systems.

Bayesian Optimization

Interpretable classifiers using rules and Bayesian analysis: Building a better stroke prediction model

2 code implementations5 Nov 2015 Benjamin Letham, Cynthia Rudin, Tyler H. McCormick, David Madigan

We introduce a generative model called Bayesian Rule Lists that yields a posterior distribution over possible decision lists.

Cannot find the paper you are looking for? You can Submit a new open access paper.