Search Results for author: Francesco Archetti

Found 11 papers, 1 papers with code

BORA: Bayesian Optimization for Resource Allocation

no code implementations12 Oct 2022 Antonio Candelieri, Andrea Ponti, Francesco Archetti

In this paper we propose (i) an extension of the optimal resource allocation to a more general class of problems, specifically with resources availability changing over time, and (ii) Bayesian Optimization as a more efficient alternative to SBF.

Bayesian Optimization Marketing

Fair and Green Hyperparameter Optimization via Multi-objective and Multiple Information Source Bayesian Optimization

no code implementations18 May 2022 Antonio Candelieri, Andrea Ponti, Francesco Archetti

There is a consensus that focusing only on accuracy in searching for optimal machine learning models amplifies biases contained in the data, leading to unfair predictions and decision supports.

Bayesian Optimization BIG-bench Machine Learning +2

Risk Aware Optimization of Water Sensor Placement

no code implementations8 Mar 2021 Antonio Candelieri, Andrea Ponti, Francesco Archetti

A bi-objective formalization is proposed: minimizing the average MDT and its standard deviation, that is the risk to detect some contamination event too late than the average MDT.

MISO-wiLDCosts: Multi Information Source Optimization with Location Dependent Costs

no code implementations9 Feb 2021 Antonio Candelieri, Francesco Archetti

This paper addresses black-box optimization over multiple information sources whose both fidelity and query cost change over the search space, that is they are location dependent.

Uncertainty quantification and exploration-exploitation trade-off in humans

no code implementations5 Feb 2021 Antonio Candelieri, Andrea Ponti, Francesco Archetti

The main objective of this paper is to outline a theoretical framework to analyse how humans' decision-making strategies under uncertainty manage the trade-off between information gathering (exploration) and reward seeking (exploitation).

Active Learning Bayesian Optimization +2

Green Machine Learning via Augmented Gaussian Processes and Multi-Information Source Optimization

no code implementations25 Jun 2020 Antonio Candelieri, Riccardo Perego, Francesco Archetti

Computational results are reported related to the optimization of the hyperparameters of a Support Vector Machine (SVM) classifier using two sources: a large dataset - the most expensive one - and a smaller portion of it.

Bayesian Optimization BIG-bench Machine Learning +1

Composition of kernel and acquisition functions for High Dimensional Bayesian Optimization

no code implementations9 Mar 2020 Antonio Candelieri, Ilaria Giordani, Riccardo Perego, Francesco Archetti

This ap-proach makes more efficient the learning/updating of the probabilistic surrogate model and allows an efficient optimization of the acquisition function.

Bayesian Optimization Vocal Bursts Intensity Prediction

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