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Aleksei Ustimenko

$Δ\text{-}{\rm OPE}$: Off-Policy Estimation with Pairs of Policies

May 16, 2024
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Multi-Objective Recommendation via Multivariate Policy Learning

May 03, 2024
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Learning Metrics that Maximise Power for Accelerated A/B-Tests

Feb 06, 2024
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Variance Reduction in Ratio Metrics for Efficient Online Experiments

Jan 08, 2024
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Learning-to-Rank with Nested Feedback

Jan 08, 2024
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On Gradient Boosted Decision Trees and Neural Rankers: A Case-Study on Short-Video Recommendations at ShareChat

Dec 04, 2023
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Ito Diffusion Approximation of Universal Ito Chains for Sampling, Optimization and Boosting

Oct 09, 2023
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On (Normalised) Discounted Cumulative Gain as an Offline Evaluation Metric for Top-$n$ Recommendation

Jul 27, 2023
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Deep Stochastic Mechanics

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May 31, 2023
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Gradient Boosting Performs Low-Rank Gaussian Process Inference

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Jun 11, 2022
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