activity
20222026
most citedVariance Reduction for Policy-Gradient Methods via Empirical Variance Minimization

2 citations · 3 across the 6 of their papers we have counts for

collaborators

8 papers

cs.CL2026

Training Advisors for LLM Agents from Task Outcomes

Sergei Polezhaev, Barys Liskavets, Ori Press +1

Large language model agents tackle multi-step tasks by interleaving reasoning and tool calls with observations from the environment. Prior work has shown that natural-language feed…

cs.LG2026

Blockwise Advantage Estimation for Multi-Objective RL with Verifiable Rewards

Kirill Pavlenko, Alexander Golubev, Simon Karasik +1

Group Relative Policy Optimization (GRPO) assigns a single scalar advantage to all tokens in a completion. For structured generations with explicit segments and objectives, this co…

cs.LG2026

LK Losses: Direct Acceptance Rate Optimization for Speculative Decoding

Alexander Samarin, Sergei Krutikov, Anton Shevtsov +3

Speculative decoding accelerates autoregressive large language model (LLM) inference by using a lightweight draft model to propose candidate tokens that are then verified in parall…

cs.SE2026

SWE-rebench V2: Language-Agnostic SWE Task Collection at Scale

Ibragim Badertdinov, Maksim Nekrashevich, Anton Shevtsov +1

Software engineering agents (SWE) are improving rapidly, with recent gains largely driven by reinforcement learning (RL). However, RL training is constrained by the scarcity of lar…

cs.LG2025★ 1 cited

Training Long-Context, Multi-Turn Software Engineering Agents with Reinforcement Learning

Alexander Golubev, Maria Trofimova, Sergei Polezhaev +9

Research on applications of reinforcement learning (RL) to large language models has mostly been focused on single-turn problems, such as mathematical reasoning or single-shot code…

cs.SE2025

Guided Search Strategies in Non-Serializable Environments with Applications to Software Engineering Agents

Karina Zainullina, Alexander Golubev, Maria Trofimova +9

Large language models (LLMs) have recently achieved remarkable results in complex multi-step tasks, such as mathematical reasoning and agentic software engineering. However, they o…

cs.SE2025

SWE-rebench: An Automated Pipeline for Task Collection and Decontaminated Evaluation of Software Engineering Agents

Ibragim Badertdinov, Alexander Golubev, Maksim Nekrashevich +6

LLM-based agents have shown promising capabilities in a growing range of software engineering (SWE) tasks. However, advancing this field faces two critical challenges. First, high-…

cs.LG2022★ 2 cited

Variance Reduction for Policy-Gradient Methods via Empirical Variance Minimization

Maxim Kaledin, Alexander Golubev, Denis Belomestny

Policy-gradient methods in Reinforcement Learning(RL) are very universal and widely applied in practice but their performance suffers from the high variance of the gradient estimat…