Alexander Korotin
Alexander Korotin
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On the inverse problem of flow matching in the one-dimensional and Gaussian cases
The paper proves that the inverse flow matching problem has a unique solution in one dimension and for Gaussian distributions but the general multidimensional case remains unsolved.
Alexander Korotin
,
Gudmund Pammer
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RMS
On the equivalence of optimal transport problem and action matching with optimal vector fields
We show that action matching yields optimal transport when using optimal vector fields.
Nikita Kornilov
,
Alexander Korotin
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RMS
An optimal transport perspective on unpaired image super-resolution
We show that unpaired super-resolution with GANs inherently learns optimal transport maps, but these are biased and do not correctly transform distributions. Recent neural OT methods provide unbiased alternatives and reveal a direct connection to regularized GANs.
Milena Gazdieva
,
Petr Mokrov
,
Litu Rout
,
Alexander Korotin
,
Andrey Kravchenko
,
Alexander Filippov
,
Evgeny Burnaev
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JOTA
Analysis of video game players’ emotions and team performance: An esports tournament case study
We study the impact of emotions on an eSports team performance. By analysing the real data collect at an eSports tournament, we find that there is a strong correlation among the performance of the team, communication between the players, and emotional sentiment of communication.
Simon Abramov
,
Alexander Korotin
,
Andrey Somov
,
Evgeny Burnaev
,
Anton Stepanov
,
Dmitry Nikolaev
,
Maria A Titova
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IEEE
Adaptive Hedging under Delayed Feedback
We develop the General Hedging algorithm for online expert weight allocation under delayed feedback. The algorithm is based on the exponential reweighing of experts’ losses. It extends classical Hedge and Fixed Share algorithms.
Alexander Korotin
,
Vladimir Vyugin
,
Evgeny Burnaev
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ScienceDirect
Mixability of integral losses: A key to efficient online aggregation of functional and probabilistic forecasts
We extend the setting of the online prediction with expert advice to function-valued forecasts. As an application of our main result, we prove that various loss functions used for probabilistic forecasting are mixable (exp-concave).
Alexander Korotin
,
Vladimir Vyugin
,
Evgeny Burnaev
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ScienceDirect
Online algorithm for aggregating experts predictions with unbounded quadratic loss
We propose an algorithm for aggregating experts’ predictions which does not require a prior knowledge of the upper bound on the losses. The algorithm is based on the exponential reweighing of experts’ losses.
Alexander Korotin
,
Vladimir Vyugin
,
Evgeny Burnaev
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RMS
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