Search Results for author: Jacek Golebiowski

Found 4 papers, 3 papers with code

Learning Action Embeddings for Off-Policy Evaluation

1 code implementation6 May 2023 Matej Cief, Jacek Golebiowski, Philipp Schmidt, Ziawasch Abedjan, Artur Bekasov

Off-policy evaluation (OPE) methods allow us to compute the expected reward of a policy by using the logged data collected by a different policy.

Off-policy evaluation

Optimizing Hyperparameters with Conformal Quantile Regression

1 code implementation5 May 2023 David Salinas, Jacek Golebiowski, Aaron Klein, Matthias Seeger, Cedric Archambeau

Many state-of-the-art hyperparameter optimization (HPO) algorithms rely on model-based optimizers that learn surrogate models of the target function to guide the search.

Gaussian Processes Hyperparameter Optimization +1

Meta-Calibration Regularized Neural Networks

no code implementations27 Mar 2023 Cheng Wang, Jacek Golebiowski

Our experiments show that (a) learning sample-wise gamma at continuous space can effectively perform calibration; (b) SECE smoothly optimise gamma-net towards better robustness to binning schemes; (c) the combination of gamma-net and SECE achieve the best calibration performance across various calibration metrics and retain very competitive predictive performance as compared to multiple recently proposed methods on three datasets.

Meta-Learning

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