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Aleksei Ustimenko
Aleksei Ustimenko
Staff Applied Scientist at ShareChat. Ex-Yandex.Research
Verified email at sharechat.co
Title
Cited by
Cited by
Year
Uncertainty in Gradient Boosting via Ensembles
A Malinin, L Prokhorenkova, A Ustimenko
International Conference on Learning Representations, 2021, 2020
892020
SGLB: Stochastic Gradient Langevin Boosting
A Ustimenko, L Prokhorenkova
International Conference on Machine Learning, 2021, 2020
25*2020
StochasticRank: Global Optimization of Scale-Free Discrete Functions
A Ustimenko, L Prokhorenkova
International Conference on Machine Learning, 2020, 2020
172020
Learning to select for a predefined ranking
A Ustimenko, A Vorobev, G Gusev, P Serdyukov
International Conference on Machine Learning, 6477-6486, 2019
72019
On (Normalised) Discounted Cumulative Gain as an Offline Evaluation Metric for Top-𝑛 Recommendation
O Jeunen, I Potapov, A Ustimenko
arXiv preprint arXiv:2307.15053, 2023
52023
Which Tricks are Important for Learning to Rank?
I Lyzhin, A Ustimenko, A Gulin, L Prokhorenkova
International Conference on Machine Learning, 2023, 2022
52022
Method and server for training machine learning algorithm for ranking objects
AI Ustimenko
US Patent App. 17/223,680, 2021
42021
Learning-to-Rank with Nested Feedback
H Sagtani, O Jeunen, A Ustimenko
European Conference on Information Retrieval, 306-315, 2024
12024
Variance Reduction in Ratio Metrics for Efficient Online Experiments
S Baweja, N Pokharna, A Ustimenko, O Jeunen
European Conference on Information Retrieval, 292-297, 2024
12024
On Gradient Boosted Decision Trees and Neural Rankers: A Case-Study on Short-Video Recommendations at ShareChat
O Jeunen, H Sagtani, H Doi, R Karimov, N Pokharna, D Kalim, ...
Proceedings of the 15th Annual Meeting of the Forum for Information …, 2023
12023
Methods and systems for generating an uncertainty score for an output of a Gadient Boosting Decision Tree model
LA Prokhorenkova, AI Ustimenko, AA Malinin
US Patent App. 17/351,719, 2022
12022
Gradient Boosting Performs Gaussian Process Inference
A Ustimenko, A Beliakov, L Prokhorenkova
International Conference on Learning Representations, 2023, 2022
12022
Methods and systems for training a decision-tree based machine learning algorithm (mla)
AI Ustimenko
US Patent App. 17/207,403, 2022
12022
The triviality condition for kernels of quadratic mappings and its application in optimization methods
A Tret’yakov, E Tyrtyshnikov, A Ustimenko
Russian Journal of Numerical Analysis and Mathematical Modelling 32 (4), 267-274, 2017
12017
Learning Metrics that Maximise Power for Accelerated A/B-Tests
O Jeunen, A Ustimenko
arXiv preprint arXiv:2402.03915, 2024
2024
Ito Diffusion Approximation of Universal Ito Chains for Sampling, Optimization and Boosting
A Ustimenko, A Beznosikov
International Conference on Learning Representations, 2024, 2023
2023
Deep Stochastic Mechanics
E Orlova, A Ustimenko, R Jiang, PY Lu, R Willett
arXiv preprint arXiv:2305.19685, 2023
2023
Method of and system for ranking digital objects based on objective characteristic associated therewith
AI Ustimenko, AL Vorobyev, GG Gusev, PV Serdyukov
US Patent 11,308,099, 2022
2022
On Matrix Subspaces with Trivial Quadratic Kernels
A Tret’yakov, E Tyrtyshnikov, A Ustimenko
Structured Matrices in Numerical Linear Algebra 30 (Springer INdAM Series …, 2019
2019
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Articles 1–19