Hi, my name is Mingxuan Song
I'm currently pursuing my PhD at Peking University.

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About me

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I am currently a PhD student at the School of Computer Science, Peking University. I received my bachelor's degree in computer science and technology from China University of Geosciences, Wuhan, in 2023. My research interests include reinforcement learning (RL), sharding blockchain, and large language models (LLMs). Feel free to contact me!

I enjoy playing billiards, badminton, table tennis, and also love running. My goal is to continuously grow both professionally and personally, while maintaining a healthy and fulfilling lifestyle.

📍 Location: Beijing, China

✉️ Email: songmingxuan@stu.pku.edu.cn

🎯 Hobbies: 🎱 Billiards | 🏸 Badminton | 🏓 Table Tennis | 🏃‍♂️ Running

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📚 Publications

  • WWW 2025 Oral CCF-A Mingxuan Song, Pengze Li, Bohan Zhou, Shenglin Yin, Zhen Xiao*, Jieyi Long. "AERO: Enhancing Sharding Blockchain via Deep Reinforcement Learning for Account Migration." Proceedings of the Web Conference, May 2025. [PDF]
  • CVPR 2024 CCF-A Shenglin Yin, Zhen Xiao*, Mingxuan Song, and Jieyi Long. "Adversarial Distillation Based on Slack Matching and Attribution Region Alignment." Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition, June 2024. [PDF]
  • WWW 2024 Oral CCF-A Pengze Li, Mingxuan Song, Mingzhe Xing, Zhen Xiao*, Qiuyu Ding, Shengjie Guan, and Jieyi Long. "SPRING: Improving the Throughput of Sharding Blockchain via Deep Reinforcement Learning Based State Placement." In Proceedings of the Web Conference, May 2024. [PDF]
  • Sensors 2022 JCR Q1 Mingxuan Song, Chengyu Hu*, Wenyin Gong, Xuesong Yan. "Domain Knowledge-Based Evolutionary Reinforcement Learning for Sensor Placement." Sensors 2022. [PDF]
  • IJCAI 2025 CCF-A Submitted Mingxuan Song, Pengze Li, Shenglin Yin, Bohan Zhou, Zhen Xiao*, Chengyu Hu, Jieyi Long, Jin Dong*, Mingchao Wan, Taifu Yuan. "RLRP: Enhancing Sharding Blockchain with Deep Reinforcement Learning based Reconfiguration Phase." Submitted to IJCAI 2025.
  • IJCAI 2025 CCF-A Submitted Mingxuan Song, Pengze Li, Shenglin Yin, Bohan Zhou, Zhen Xiao*, Jieyi Long. "HERALD: Hierarchical Reinforcement Learning for Advanced NFT Auction System in Web 3.0 Digital Economy." Submitted to IJCAI 2025.
  • 🌟 Projects

    Few-Shot RL Fine-Tuning for LLMs

    Affiliations:
    School of Computer Science, Peking University;
    Alimama, Alibaba Group.

    In recent years, Large Language Models (LLMs) have demonstrated remarkable performance across a variety of natural language processing tasks. However, fine-tuning these models typically requires large-scale datasets and extensive computational resources, which limits their applicability in scenarios where data is scarce and budgets are constrained. This work explores a novel approach to few-shot reinforcement learning (RL) fine-tuning for LLMs, aiming to adapt pre-trained models to specific tasks using minimal supervision.

    See Live Source Code

    RL for Efficient Sharding Blockchain

    Affiliations:
    School of Computer Science, Peking University;
    Theta Labs, Theta Inc.

    Sharding blockchain systems face critical challenges in achieving efficient cross-shard data distribution and maintaining balanced workload across shards. Traditional address allocation methods often suffer from high latency and uneven shard utilization, especially when dealing with dynamically changing transaction patterns and reconfiguration events.

    See Live Source Code

    RL for Advanced NFT Auction System

    Affiliations:
    School of Computer Science, Peking University;
    Theta Labs, Theta Inc.

    In the Web 3.0 era, NFTs have become a popular asset type, and the auction system is a crucial component of the NFT ecosystem. However, traditional auction systems often suffer from low throughput and high latency, especially when dealing with high-demand auctions. To address these challenges, we propose a hierarchical reinforcement learning approach to optimize dynamic bidding strategies, enabling more efficient and responsive NFT auctions.

    See Live Source Code

    Contact

    ✉️ Email: songmingxuan@stu.pku.edu.cn

    💬 WeChat: smx-scholar

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