Search Results for author: Raul Astudillo

Found 9 papers, 5 papers with code

Bayesian Optimization of Function Networks with Partial Evaluations

no code implementations3 Nov 2023 Poompol Buathong, Jiayue Wan, Samuel Daulton, Raul Astudillo, Maximilian Balandat, Peter I. Frazier

Recent work has considered Bayesian optimization of function networks (BOFN), where the objective function is computed via a network of functions, each taking as input the output of previous nodes in the network and additional parameters.

Bayesian Optimization

qEUBO: A Decision-Theoretic Acquisition Function for Preferential Bayesian Optimization

1 code implementation28 Mar 2023 Raul Astudillo, Zhiyuan Jerry Lin, Eytan Bakshy, Peter I. Frazier

Preferential Bayesian optimization (PBO) is a framework for optimizing a decision maker's latent utility function using preference feedback.

Bayesian Optimization

Preference Exploration for Efficient Bayesian Optimization with Multiple Outcomes

1 code implementation21 Mar 2022 Zhiyuan Jerry Lin, Raul Astudillo, Peter I. Frazier, Eytan Bakshy

We consider Bayesian optimization of expensive-to-evaluate experiments that generate vector-valued outcomes over which a decision-maker (DM) has preferences.

Bayesian Optimization

Thinking inside the box: A tutorial on grey-box Bayesian optimization

no code implementations2 Jan 2022 Raul Astudillo, Peter I. Frazier

However, internal information about objective function computation is often available.

Bayesian Optimization

Bayesian Optimization of Function Networks

1 code implementation NeurIPS 2021 Raul Astudillo, Peter I. Frazier

We consider Bayesian optimization of the output of a network of functions, where each function takes as input the output of its parent nodes, and where the network takes significant time to evaluate.

Bayesian Optimization Gaussian Processes

Multi-Step Budgeted Bayesian Optimization with Unknown Evaluation Costs

1 code implementation NeurIPS 2021 Raul Astudillo, Daniel R. Jiang, Maximilian Balandat, Eytan Bakshy, Peter I. Frazier

To overcome the shortcomings of existing approaches, we propose the budgeted multi-step expected improvement, a non-myopic acquisition function that generalizes classical expected improvement to the setting of heterogeneous and unknown evaluation costs.

Bayesian Optimization

Bayesian Optimization of Risk Measures

2 code implementations NeurIPS 2020 Sait Cakmak, Raul Astudillo, Peter Frazier, Enlu Zhou

We consider Bayesian optimization of objective functions of the form $\rho[ F(x, W) ]$, where $F$ is a black-box expensive-to-evaluate function and $\rho$ denotes either the VaR or CVaR risk measure, computed with respect to the randomness induced by the environmental random variable $W$.

Bayesian Optimization Decision Making +2

Multi-Attribute Bayesian Optimization With Interactive Preference Learning

no code implementations14 Nov 2019 Raul Astudillo, Peter I. Frazier

The outcome of our approach is a menu of designs and evaluated attributes from which the DM makes a final selection.

Attribute Bayesian Optimization

Bayesian Optimization of Composite Functions

no code implementations4 Jun 2019 Raul Astudillo, Peter I. Frazier

We consider optimization of composite objective functions, i. e., of the form $f(x)=g(h(x))$, where $h$ is a black-box derivative-free expensive-to-evaluate function with vector-valued outputs, and $g$ is a cheap-to-evaluate real-valued function.

Bayesian Optimization

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