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General Information

Full Name Mengfan Xu
Languages English, Chinese

Education

  • 2024
    Ph.D.
    Northwestern University, United States
    • Majored in Industrial Engineering and Management Sciences
    • Dissertation title "Multi-agent and Multi-objective Multi-armed Bandit"
    • Advised by Professor Diego Klabjan
  • 2018
    B.S.
    University of Science and Technology of China, China
    • Majored in Statistics
    • Summer research at Yale University in 2017

Experience

  • Summer 2023
    Machine Learning Engineer Intern
    Linkedin
    • Develop large language models (LLMs) for keywords extraction based on user queries in search AI team
    • Prompt engineering and data mining
    • Develop a workflow and pipeline to ultimately improve users' search experience
  • 2021
    Algorithm Engineer
    Didi Chuxing, Beijing, China
    • Developed two-staged algorithms that achieve over 25% improvement on baselines for pricing of multiple ride options at Didi;
    • Developed the very first algorithm with causal forest for model-based route-based pricing of Didi Discount Express and iterated multiple versions with superior performance
    • Built data pipelines with Spark for processing billions of data and advancing feature engineering to support large-scale model training and distributional computations
    • Built a model pipeline for online recommender systems with causal neural networks
    • Did research on treatment effect estimation including proving the convergence of GCF for non-parametric DRF, giving multiple talks and finishing a paper accepted for oral presentation at KDD 2022

Honors and Awards

  • 2018 - 2019
    • Walter P. Murphy Graduate Fellowship
  • 2018
    • Runner up, Guo Moruo Scholarship (the highest honor at USTC)
  • 2017
    • National Scholarship (top 1%)
  • 2016
    • National Scholarship (top 1%)
  • 2016
    • Mobile Commerce Competition
    • Frist Prize
  • 2015
    • Scholarship of Minglong Huang (top 10%)
  • 2013
    • National High School Mathematics Olympiad
    • Second Prize

Skills

  • Programming Languages
    • Python
    • R
    • SQL
    • Scala
    • SAS
    • Latex
    • C
  • System and framework
    • Linux
    • Spark
    • Hadoop
    • Kubernetes,
    • Pytorch
    • GCC