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About Denis

I work as a freelance photographer and cover news in political, cultural and social life in Saint-Petersburg and North-West Region of Russia. Also i have an experience of working as a photographer and operator in Syria. If you need a photographer, please send me an e-mail, message here, or connect me in social networks, i open for any ideas and cooperation offers. Collaborated with: NRC.NL, Zuma Press, RBC Daily, Novaya Gazeta, Ok-inform.ru, Demotix Published in: Fontanka.ru, Novaya Gazeta, NRC.NL, London Evening Standard, Karpovka.com, PiterStory.com, Turan, GlobalVoices.com, ADC "Memorial" and others Please checkout my website for more info about my work: ****

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Work 20

Vintix: Action Model via In-Context Reinforcement Learning

arXiv 31 Jan 2025 English

The paper introduces Vintix, a fixed cross-domain action model designed to learn behaviors at inference time through in-context reinforcement learning. It argues that Algorithm Distillation can scale this paradigm beyond toy tasks and single-domain settings, and reports that it provides a competitive alternative to expert distillation for building versatile action models. The work presents initial evidence that in-context reinforcement learning could support generalist decision-making systems, with code released and publication at ICML 2025.

In-Context Reinforcement Learning Machine Learning Artificial Intelligence Robotics Generalist Agents Andrey Polubarov Nikita Lyubaykin Alexander Derevyagin Ilya Zisman Denis Tarasov Alexander Nikulin Vladislav Kurenkov
Reporting styleFactual

Predominantly factual research abstract describing the method, evaluation, and reported findings.

Offline RL for generative design of protein binders

bioRxiv 1 Dec 2023 English

The study proposes using offline reinforcement learning to improve generative drug design while avoiding costly interactions with a docking environment. Because protein-ligand docking is computationally expensive and online reinforcement learning typically requires hundreds of thousands of interactions, the authors investigate whether offline RL can optimize non-differentiable docking and chemical properties using existing data. The preliminary work focuses on conditionally generating compounds with improved docking performance and chemical characteristics.

Offline Reinforcement Learning Generative Drug Design Protein Binders Protein-Ligand Docking Structure-Based Drug Discovery Bioinformatics ETH Zurich Denis Tarasov Ulrich A. Mbou Sob Miguel Arbesú Nima Siboni Sebastien Boyer
Reporting styleFactual

Predominantly factual scientific abstract describing a proposed method and preliminary investigation, with limited evaluative language.

Modeling Tool for Estimating Carbon Dioxide Fluxes over a Non-Uniform Boreal Peatland

Atmosphere 25 Mar 2023 English

A 3D hydrodynamic model was developed to estimate carbon dioxide fluxes over the non-uniform Staroselsky Moch peatland in the Tver region of European Russia. The model, which uses a 'one-and-a-half' closure scheme, effectively describes the spatial distribution of wind velocities and CO2 fluxes, accounting for surface heterogeneity. The study found significant effects of vegetation heterogeneity on wind and CO2 flux patterns, with maximum airflow disturbances at forest edges. The model showed good agreement with eddy covariance flux measurements, indicating its potential for practical applications in environmental assessments and greenhouse gas flux up-scaling.

Climate Change Greenhouse Gas Emissions Environmental Modeling Tver region European Russia Lomonosov Moscow State University A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Science Iuliia Mukhartova Julia Kurbatova Denis Tarasov Ravil Gibadullin
Reporting styleFactual

Complete fact-based analysis with detailed methodology and results.

Eastern Ghouta, Syria

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Eastern Ghouta, Syria

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Police, called by traders in the market, arresting homeless man.

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Guy juggles stones in the "Museum of authorities" in front of the portrait of President Putin.

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Gypsy mother puts a child on a toy horse.

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Run through the streets of St. Petersburg.

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