I am currently a Research Assistant in the Department of Computing at The Hong Kong Polytechnic University, supervised by Prof. Hongxia Yang. Previously, I worked as a software engineer at Tencent for over two years. I received my Master’s Degree in Computer Technology from the School of Computer Science and Engineering at South China University of Technology in 2022, where I conducted research in the MLC Lab under the supervision of Prof. Wing W. Y. Ng. I obtained my Bachelor’s Degree in Industrial Engineering from the same university in 2019.

My current research interests primarily focus on Large Language Models (LLMs), with a particular emphasis on post-training.

Publications

• InfiAlign: A Scalable and Sample-Efficient Framework for Aligning LLMs to Enhance Reasoning Capabilities
  Under Review
  Shuo Cai, Su Lu, Qi Zhou, Kejing Yang, Zhijie Sang, Congkai Xie, Hongxia Yang
• InfiR: Crafting Effective Small Language Models and Multimodal Small Language Models in Reasoning
  Under Review
  Congkai Xie, Shuo Cai, Wenjun Wang, Pengxiang Li, Zhijie Sang, Kejing Yang, Yiming Zhang, Zhen Li, Guanghao Zhu, Zeyu Liu, Yang Yu, Yuhang Liu, Su Lu, Baoyi He, Qi Zhou, Xiaotian Han, Jianbo Yuan, Shengyu Zhang, Fei Wu, Hongxia Yang
• SBHA: Sensitive binary hashing autoencoder for image retrieval
  IEEE Transactions on Cybernetics
  Ting Wang, Su Lu, Jianjun Zhang, Xuyu Liu, Xing Tian, Wing WY Ng, Wei-neng Chen

Honors and Awards

• 2021.09, Academic Scholarship, SCUT (Top 10%)
• 2020.09, Academic Scholarship, SCUT (Top 10%)
• 2019.09, First-Class Academic Scholarship, SCUT (Top 10%)
• 2017.09, Second-Class Academic Scholarship, SCUT (Top 10%)

Work Experience

• 2025.01 - Present, Research Assistant, Hong Kong Polytechnic University
• 2022.07 - 2024.11, Software Engineer (Backend Development), Tencent

Education

• 2019.09 - 2022.07, Master in Computer Technology, South China University of Technology
• 2015.09 - 2019.07, Bachelor in Industrial Engineering, South China University of Technology