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20242026
most citedCooperative Decentralized Backdoor Attacks on Vertical Federated Learning

1 citations · 1 across the 7 of their papers we have counts for

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cs.LG2026

Fisher-Informed Recalibration for Feedback-Based On-Policy Self-Distillation of LLMs

Seohyun Lee, Dong-Jun Han, Seyyedali Hosseinalipour +1

Feedback-based on-policy self-distillation has emerged as a promising approach for enabling foundation models, more specifically Large Language Models (LLMs), to learn from their o…

cs.CV2026

Reason in the Words You Speak: Idiolectal Paraphrasing Off-Policy Traces for Reasoning Distillation in VideoLLMs

Ji Soo Lee, Jinyoung Park, Seohyun Lee +4

Recent large language models achieve strong performance on complex reasoning tasks, where reinforcement learning with Group Relative Policy Optimization (GRPO) has emerged as a lea…

cs.CV2026

VideoSearch-R1: Iterative Video Retrieval and Reasoning via Soft Query Refinement

Seohyun Lee, Seoung Choi, Dohwan Ko +2

As video corpora continue to expand in both scale and task complexity, there is increasing demand for approaches that retrieve relevant videos from large-scale corpora (inter-video…

cs.CR2026

Detecting and Mitigating Backdoor Attacks in OTA-FL Systems: A Two-Stage Robust Aggregation Scheme

Xiaoyan Ma, Seohyun Lee, Taejoon Kim +1

Over-the-air federated learning (OTA-FL) improves communication efficiency by exploiting the superposition property of wireless channels, but this same property also creates a crit…

cs.LG2026

Self-Play Enhancement via Advantage-Weighted Refinement in Online Federated LLM Fine-Tuning

Seohyun Lee, Wenzhi Fang, Dong-Jun Han +2

Recent works have advanced feedback-based learning systems, whereby a foundation model is able to intake incoming feedback (e.g., from a user) to self-improve, creating a self-loop…

cs.CV2026

MoE-GRPO: Optimizing Mixture-of-Experts via Reinforcement Learning in Vision-Language Models

Dohwan Ko, Jinyoung Park, Seoung Choi +3

Mixture-of-Experts (MoE) has emerged as an effective approach to reduce the computational overhead of Transformer architectures by sparsely activating a subset of parameters for ea…