About

About

Master Student at Nanjing University, Websoft Research Group

Hi, I’m Yiwei Liu (刘艺葳). I’m a graduate student from Nanjing University, studying for a M.Sc. degree in the Websoft Research Group. I am supervised by Gong Cheng (程龚). My research interests include natural language processing, reasoning, and information retrieval.

Contact

  • Office: 413, Building of Computer Science and Technology, Xianlin Campus of Nanjing University
  • Email: ywliu AT smail DOT nju DOT edu DOT cn

Education & Work Experience

  • Ant Group (Dec. 2024 - now), Shanghai
    • Algorithm Engineer Intern
    • Working on efficient evaluation for RAG systems
  • Qiyuan Lab (Jun. 2025 - Sep. 2025), Beijing
    • Algorithm Engineer Intern
    • Contributed to a large-scale multimodal model evaluation system, including benchmarking multiple open-source MLLMs and robustness evaluation (attacks/perturbations/defenses)
  • Tencent IEG, Timi (Aug. 2024 - Oct. 2024), Shenzhen
    • Interning as SWE
    • Building a Voice Interaction System for Games
  • Nanjing University, Websoft (Sep. 2022 - now), Nanjing
    • Studying for a M.Sc. Degree in Computer Science and Technology from 2025
    • Advisor: Gong Cheng
  • Nanjing University (Sep. 2021 - Jul. 2025), Nanjing
    • Studying for a B.Sc. Degree in Computer Science and Technology

Publications

LogiNumSynth: Synthesizing Joint Logical–Numerical Reasoning Problems for Language Models

Yiwei Liu, Yucheng Li, Xiao Li, Gong Cheng

Paper / Code

A fully controllable synthesizer for joint logical-numerical reasoning with process-level evaluation.

FormulaReasoning: A Dataset for Formula-Based Numerical Reasoning

Xiao Li, Bolin Zhu, Kaiwen Shi, Sichen Liu, Yin Zhu, Yiwei Liu, Gong Cheng

Paper / Code

A dataset for formula-based numerical reasoning.

Awards & Honors

  • National Scholarship for Graduate Students of China, 2024
  • People’s Scholarship First Prize, 2023
  • Yangtze River Alumni Scholarship, 2022
  • Outstanding Student of Freshman College, Nanjing University, 2022

Curriculum Vitae

You can find my CV here.