CV

General Information

Full Name Mingxue (Mercy) Xu
Email mercy.xu@facthink.com
Languages English, Chinese (Mandarin, native)

Education

  • 2022–2026
    PhD in Model Compression with Algebraic Approaches
    Imperial College London
  • 2018–2021
    MEng in Computer Science and Technology
    University of Science and Technology of China
    • September 2018 – July 2021; supervised by Prof. Xiang-Yang Li.
    • AI Privacy and Federated Learning
    • IoT Sensing
    • Thesis: Set-level Membership Inference in Deep Learning Systems.
  • 2014–2018
    BEng in Computer Science and Technology
    China University of Petroleum - Beijing
    • September 2014 – July 2018; ranked first in the department.

Experience

  • 2026–now
    Founder
    Facthink LTD
    • Since May 2026, building Graph-Hypoth, a multi-agent hypothesis generation system that develops research claims into candidate hypotheses and literature-grounded experiment plans.
    • Seven specialised agents work over a shared claim graph to review evidence, propose and critique hypotheses, and design experiments, with fixed aggregation rules and versioned records for audit.
  • 2022–2026
    PhD Researcher
    Imperial College London, Department of Electrical and Electronic Engineering
    • Used representation dimension to estimate language model performance after structural pruning.
    • Developed a unified taxonomy of matrix and tensor factorisation for generative language model compression.
    • Compressed GPT-series models with tensor decomposition and deployed them on resource-constrained devices, including Raspberry Pi.
    • Applied membership inference to dataset legitimacy assessment in MLaaS; this work was featured by the Montreal AI Ethics Institute.
  • 2021
    Technical Product Manager (Intern)
    Baidu PaddlePaddle
    • October – December 2021.
    • Co-authored a paper on the product design of PaddlePaddle, a deep learning platform for users with technical and non-technical backgrounds.
  • 2018–2021
    MEng Research, LINKE Lab
    University of Science and Technology of China
    • April 2018 – June 2021.
    • Implemented subject property inference in federated learning with CycleGAN.
    • Implemented lightweight LSTM models on smartwatches for identification and authentication from accelerometer and gyroscope gesture signals.

Open Source Projects

  • llm-profiler
    • A fine-grained, layer-level LLM profiler that counts arithmetic operations, parameters, temporary buffers, and activations.
  • ori
    • The code of the paper "Data Origin Inference in Machine Learning".

Honors and Awards

  • 2019–2021
    • First Prize Scholarship in University of Science and Technology of China (2019, 2020, 2021)
  • 2018
    • Outstanding Graduate Student of Beijing
  • 2016
    • Meritorious Winner in Mathematical Contest in Modeling, U.S. (top 10%)
  • 2015, 2016
    • National Scholarship of China (ranked first in the department)

Other Interests

  • Hobbies: I am a (crazy) swan lover 🦒 and a cat 🐈 person. I also like other waterfowl, the crow family and tiny songbirds.