Research

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    Research Area

    Year

    • International Conferences
      LLM / NLP

      Training Lightweight PII Text Detectors via Rubric-Guided Contrastive Data Synthesis

      [paper]

      Shota Ekuni, Jie Zeng, Yohei Kobashi, Takeshi Kojima, Yusuke Iwasawa, Yutaka Matsuo

      Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing (EMNLP 2026), Industry Track, October 2026

    • International Conferences
      LLM / NLP

      In-Context Neurofeedback: Can Large Language Models Control Their Internal Representations Through Privileged Access?

      [paper]

      Koshiro Aoki, Ryota Takatsuki, Gouki Minegishi, Yusuke Haruki, Daisuke Kawahara

      Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing (EMNLP 2026), Findings, October 2026

    • International Conferences
      LLM / NLP

      Zipping the Thought: When and How Compressed Reasoning Data Works in LLM Post-Training

      [paper]

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

      Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing (EMNLP 2026), Findings, October 2026

    • International Conferences
      LLM / NLP

      Omanic: Toward a Step-by-Step Evaluation of Multi-Hop Reasoning in Large Language Models

      [paper]

      Xiaojie Gu, Sherry T. Tong, Aosong Feng, Sophia Simeng Han, Jinghui Lu, Yingjian Chen, Yusuke Iwasawa, Yutaka Matsuo, Chanjun Park, Rex Ying, Irene Li

      Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing (EMNLP 2026), Findings, October 2026

    • International Conferences
      Generative Model Reinforcement Learning

      Multi-Axis Max@K Reinforcement Learning for Representative Diversity in Text-to-Image Generation

      Ku Onoda, Paavo Parmas, Hiroki Furuta, Soichiro Nishimori, Yuta Oshima, Shohei Taniguchi, Yutaka Matsuo

      The IEEE/CVF Winter Conference on Applications of Computer Vision 2027 (WACV 2027), January 2027

    • International Conferences
      AI Application

      Degree-Mass Message Passing for Betweenness Ranking in Directed and Undirected Networks

      Justin Dachille*, Aurora Rossi*, Sunil Kumar Maurya, Frederik Mallmann-Trenn, Xin Liu, Frédéric Giroire, Tsuyoshi Murata, Emanuele Natale (*equal contribution)

      Proceedings of the 35th ACM International Conference on Information and Knowledge Management (CIKM 2026), November 2026

    • International Conferences
      AI Application Machine Learning in General

      Temporal-Aware Graph Attention for Sequential Knowledge Tracing

      Sunil Kumar Maurya, Makoto Kawano, Yusuke Iwasawa, Yutaka Matsuo

      Proceedings of the 35th ACM International Conference on Information and Knowledge Management (CIKM 2026), November 2026

    • International Conferences

      SMC-ITA: Sequential Monte Carlo Inference-Time Alignment for Video-to-Audio Generation

      [paper]

      Haoyu Zhang, Yuta Oshima, Xingjian Du, Chunfeng Wang, Irene Li, Yusuke Iwasawa, Yutaka Matsuo

      Proceedings of the 18th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2026), November 2026

    • 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