collaborators

6 papers

cs.LG2026

Looped Diffusion Language Models

Sanghyun Lee, Chunsan Hong, Seungryong Kim +3

Masked diffusion models (MDMs) have emerged as a promising alternative to autoregressive models for language modeling, yet the effective design of transformer architectures for MDM…

cs.AI2026

THINKSAFE: Self-Generated Safety Alignment for Reasoning Models

Seanie Lee, Sangwoo Park, Yumin Choi +6

Large reasoning models (LRMs) achieve remarkable performance by leveraging reinforcement learning (RL) on reasoning tasks to generate long chain-of-thought (CoT) reasoning. However…

cs.CL2026

Raon-Speech Technical Report

Beomsoo Kim, Changho Choi, Dohyun Kim +23

We present Raon-Speech, a top-performing 9B-parameter speech language model (SpeechLM) for English and Korean speech understanding, answering, and generation, and Raon-SpeechChat,…

cs.LG2025

Lookahead Unmasking Elicits Accurate Decoding in Diffusion Language Models

Sanghyun Lee, Seungryong Kim, Jongho Park +1

Masked Diffusion Models (MDMs) as language models generate by iteratively unmasking tokens, yet their performance crucially depends on the inference time order of unmasking. Prevai…

cs.LG2025

Effective Test-Time Scaling of Discrete Diffusion through Iterative Refinement

Sanghyun Lee, Sunwoo Kim, Seungryong Kim +2

Test-time scaling through reward-guided generation remains largely unexplored for discrete diffusion models despite its potential as a promising alternative. In this work, we intro…

cs.AI2025

Can Large Language Models Develop Strategic Reasoning? Post-training Insights from Learning Chess

Dongyoon Hwang, Hojoon Lee, Jaegul Choo +2

While reinforcement learning (RL) for large language models (LLMs) has shown promise in mathematical reasoning, strategic reasoning for LLMs using RL remains largely unexplored. We…