Lixin Xiu (修 立信)

PhD Student · The University of Tokyo

Web.JPG

Nice to meet you! I’m currently a PhD student at the Graduate School of Information Science and Technology, the University of Tokyo, supervised by Prof. Hideki Nakayama.

My research interests include post-training for multimodal large language models (mLLMs) and agents, multi-agent systems, and information theory.

I’m actively looking for full-time research positions. If you’d like to chat about anything, please feel free to contact me.

Education

  • The University of Tokyo, Tokyo, Japan
    PhD in Information Science and Technology · Oct 2024 – Sep 2027 (expected)
    Supervisor: Prof. Hideki Nakayama
  • The University of Tokyo, Tokyo, Japan
    Master of Information Science and Technology · Oct 2022 – Sep 2024
    Department of Mathematical Informatics
  • Xi’an Jiaotong University, Xi’an, China
    B.E. in Computer Science and Technology · Aug 2018 – Jul 2022

Selected Publications

  1. ICLR
    A Comprehensive Information-Decomposition Analysis of Large Vision-Language Models
    Lixin Xiu, Xufang Luo, and Hideki Nakayama
    In 14th International Conference on Learning Representations, 2026
  2. ICML Oral
    Bottleneck-Minimal Indexing for Generative Document Retrieval
    Xin Du*, Lixin Xiu*, and Kumiko Tanaka-Ishii
    * Equal contribution (co-first authors).
    In 41st International Conference on Machine Learning (Oral), 2024

Full Publications

2026

  1. EMNLP Main
    MangaFlow: An End-to-End Agentic Framework for Controllable Story to Manga Generation
    Muyao Wang, Zeke Xie, Yanhao Chen, Lixin Xiu, and Hideki Nakayama
    In 31st Conference on Empirical Methods in Natural Language Processing (Main), 2026
    Not yet publicly available.
  2. EMNLP Findings
    Sustaining Cross-Modal Dependency for Generalizable Vision-Language Model Tuning
    Chenhao Ding, Jizhou Han, SongLin Dong, Xinyuan Gao, Qiang Wang, Lixin Xiu, Wei Ke, Yihong Gong, and Hideki Nakayama
    In 31st Conference on Empirical Methods in Natural Language Processing (Findings), 2026
    Not yet publicly available.
  3. ICLR
    A Comprehensive Information-Decomposition Analysis of Large Vision-Language Models
    Lixin Xiu, Xufang Luo, and Hideki Nakayama
    In 14th International Conference on Learning Representations, 2026

2024

  1. ICML Oral
    Bottleneck-Minimal Indexing for Generative Document Retrieval
    Xin Du*, Lixin Xiu*, and Kumiko Tanaka-Ishii
    * Equal contribution (co-first authors).
    In 41st International Conference on Machine Learning (Oral), 2024

Experience

Lightspeed Studio, Tencent

Research Intern
Tokyo, Japan · Jul 2026 – Present

Shanda AI Research Tokyo

Research Intern
Tokyo, Japan · Dec 2025 – Mar 2026

Beyond AI, the University of Tokyo and SoftBank

Research Assistant
Tokyo, Japan · Nov 2024 – Present

School of Computing, National University of Singapore

Summer Workshop — Traffic Sign Recognition Contest
Singapore · May 2021 – Jul 2021

Honors & Service

  1. 2027~

    JSPS Research Fellowship (DC2)

    Japan Society for the Promotion of Science

    Selected for the fellowship at the University of Tokyo. Fellowship tenure: April 2027 – March 2029.

  2. 2024~

    UTokyo SPRING GX

    The University of Tokyo

    October 2024 – September 2027. JPY 180,000/month stipend and JPY 360,000/year research grant.

  3. 2022

    Outstanding Graduate

    Xi’an Jiaotong University

  4. 2020

    Third Prize

    12th Mathematics Competition of Chinese College Students

Academic service

Reviewer: ICLR 2026, NeurIPS 2026, ARR May 2026, ICLR 2027, ARR Oct 2026

Misc

Download my CV: English (PDF) / 中文 (PDF), or browse the online CV.