cv
General Information
Full Name | Mengfan Xu |
Languages | English, Chinese |
Education
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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
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2018 B.S.
University of Science and Technology of China, China - Majored in Statistics
- Summer research at Yale University in 2017
Experience
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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
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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
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2018 - 2019 - Walter P. Murphy Graduate Fellowship
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2018 - Runner up, Guo Moruo Scholarship (the highest honor at USTC)
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2017 - National Scholarship (top 1%)
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2016 - National Scholarship (top 1%)
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2016 - Mobile Commerce Competition
- Frist Prize
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2015 - Scholarship of Minglong Huang (top 10%)
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2013 - National High School Mathematics Olympiad
- Second Prize
Skills
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Programming Languages
- Python
- R
- SQL
- Scala
- SAS
- Latex
- C
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System and framework
- Linux
- Spark
- Hadoop
- Kubernetes,
- Pytorch
- GCC