collaborators

6 papers

cs.CL2026

Less Is More: Reducing Token Counts Without Compromising Performance

Gyeongje Cho, Yeonkyoung So, Sangmin Lee +1

Tokenization directly affects the inference efficiency of large language models, since fragmented tokenization increases sequence length and generation cost. Although longer, multi…

cs.CV2026

What Makes Video World Model Latents Action-Relevant: Prediction over Reconstruction

Jewon Yeom, Hanseul Kim, Jeongjae Park +3

Video world models are increasingly used to provide predictive visual representations, yet it remains unclear which pretraining signals induce action-relevant structure in their la…

cs.CL2026

Thunder-NUBench: A Benchmark for LLMs' Sentence-Level Negation Understanding

Yeonkyoung So, Gyuseong Lee, Sungmok Jung +4

Negation is a fundamental linguistic phenomenon that poses ongoing challenges for Large Language Models (LLMs), particularly in tasks requiring deep semantic understanding. Current…

cs.CL2026

Choices Speak Louder than Questions

Gyeongje Cho, Yeonkyoung So, Jaejin Lee

Recent findings raise concerns about whether the evaluation of Multiple-Choice Question Answering (MCQA) accurately reflects the comprehension abilities of large language models. T…

cs.CL2025

Assessing Socio-Cultural Alignment and Technical Safety of Sovereign LLMs

Kyubyung Chae, Gihoon Kim, Gyuseong Lee +3

Recent trends in LLMs development clearly show growing interest in the use and application of sovereign LLMs. The global debate over sovereign LLMs highlights the need for governme…

cs.CL2025

Thunder-DeID: Accurate and Efficient De-identification Framework for Korean Court Judgments

Sungeun Hahm, Heejin Kim, Gyuseong Lee +2

To ensure a balance between open access to justice and personal data protection, the South Korean judiciary mandates the de-identification of court judgments before they can be pub…