Research

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    • International Conferences
      LLM / NLP

      Batch-wise Adaptive Pruning: Periodic Neuron Activation-Aware Weight Pruning for Language Reasoning Models

      Yongmin Kim, Shota Takashiro, Takeshi Kojima, Yusuke Iwasawa, Yutaka Matsuo

      Proceedings of the 3rd Conference on Language Modeling (COLM 2026), October 2026

    • International Conferences
      LLM / NLP Medical AI

      JMedEthicBench: A Multi-Turn Adversarial Benchmark for Aligning Large Language Models with Japanese Medical Ethics

      [paper]

      Junyu Liu, Zirui Li, Qian Niu, Zequn Zhang, Yue Xun, Wenlong Hou, Shujun Wang, Yusuke Iwasawa, Yutaka Matsuo, Kan Hatakeyama-Sato

      Proceedings of the 3rd Conference on Language Modeling (COLM 2026), October 2026

    • International Conferences
      LLM / NLP

      AQA-TTRL: Self-Adaptation in Audio Question Answering with Test-Time Reinforcement Learning

      [paper]

      Haoyu Zhang, Jiaxian Guo, Dong Yang, Yusuke Iwasawa, Yutaka Matsuo

      Annual Conference of the International Speech Communication Association (Interspeech 2026), September 2026

    • Journals
      LLM / NLP Robotics

      LLM-Guided Adaptive Compensator: Bringing Adaptivity to Robotic Feedback Control with Large Language Models

      [paper]

      Zhongchao Zhou, Yuxi Lu, Yaonan Zhu, Yifei Zhao, Qian Niu, Bin He, Liang He, Wenwei Yu, Yusuke Iwasawa

      IEEE Transactions on Automation Science and Engineering (T-ASE), 2026

    • Journals
      AI Application LLM / NLP

      When Medical AI Fails Outside of English

      [paper]

      Irene Li, Hardy Kagimoto, Yusuke Iwasawa, Yutaka Matsuo, Ethan Goh

      BMJ Digital Health & AI, Vol. 2, No. 1, e000038, Editorial (Invited), 2026

    • International Conferences
      LLM / NLP

      EARL: The 2nd Workshop on Evaluating and Applying Recommender Systems with Large Language Models

      [paper]

      Irene Li, Ruihai Dong, Guillaume Salha-Galvan, Aonghus Lawlor, Dairui Liu, Lei Li

      Proceedings of the 19th ACM Conference on Recommender Systems (RecSys 2025), Extended Abstract, September 2025

    • International Conferences
      LLM / NLP

      Mechanism of Task-oriented Information Removal in In-context Learning

      [paper]

      Hakaze Cho, Haolin Yang, Gouki Minegishi, Naoya Inoue

      International Conference on Learning Representations 2026 (ICLR2026), April 2026

    • International Conferences
      LLM / NLP

      RL Squeezes, SFT Expands: A Comparative Study of Reasoning LLMs

      [paper]

      Kohsei Matsutani, Shota Takashiro, Gouki Minegishi, Takeshi Kojima, Yusuke Iwasawa, Yutaka Matsuo

      International Conference on Learning Representations 2026 (ICLR2026), April 2026

    • International Conferences
      LLM / NLP

      Semantic Token Clustering for Efficient Uncertainty Quantification in Large Language Models

      Qi Cao, Andrew Gambardella, Takeshi Kojima, Yutaka Matsuo, Yusuke Iwasawa

      The 19th Conference of the European Chapter of the Association for Computational Linguistics (EACL 2026), Main, March 2026

    • International Conferences
      LLM / NLP

      ∞-MoE: Generalizing Mixture of Experts to Infinite Expert

      [paper] [slide] [poster]

      Shota Takashiro, Takeshi Kojima, Shohei Taniguchi, Yusuke Iwasawa, Yutaka Matsuo

      The 19th Conference of the European Chapter of the Association for Computational Linguistics (EACL 2026), March 2026