Kaiyuan Liu

Kaiyuan Liu

About

Detail

Actively Seeking DS/MLE/DE/DA/SDE full-time Jobs | MLE Intern @Tinder | MSDS @Columbia University 23' | BS in Data Science @Duke & DKU 22'
New York, United States

Contact Kaiyuan regarding: 
work
Full-time jobs

Timeline


work
Job
school
Education
flag
Award

Résumé


Jobs verified_user 0% verified
  • GE
    Data Science Researcher [Capstone]
    GE
    Sep 2023 - Current (3 years)
    Working on the project of Information Privacy controls for Corporate Use of Public LLMs
  • Tinder
    Machine Learning Engineer Intern
    Tinder
    Jun 2023 - Aug 2023 (3 months)
  • Duke Kunshan University
    Research Assistant
    Duke Kunshan University
    Aug 2021 - Apr 2022 (9 months)
    • Processed data and conducted feature engineering (e.g., MACD, ROC, etc.) based on stock/cryptocurrency prices by Python • Trained PPO model to generate a stock-cryptocurrency portfolio automatically allocating holding weights on a daily basis • Back-tested PPO model and derived a dynamic stock-cryptocurrency portfolio with 186.4% annual return increase
  • Kuaishou Technology
    Data Science Intern
    Kuaishou Technology
    Jun 2021 - Aug 2021 (3 months)
    • Performed funnel analysis on video machine-review and human-review data, conducting deep investigations on abnormal data fluctuations to identify underlying reasons. • Performed ad hoc analysis on business questions from Operations & Strategy department by retrieving data with Hive SQL, driving adaptions of decreasing backlog videos by 15% and banning 700+ unscrupulous accounts. • Performed What-If scenario analysis on finding a cut-off point for human-review free videos based on scores generated by ML models, achieving a balance between stabilizing video quality and reducing manpower input by 20%. • Developed and maintained 6 visualization dashboards on Power BI to closely track trends of low-quality and repetitive videos.
  • Duke Kunshan University
    Computer Science Peer Tutor
    Duke Kunshan University
    Jan 2021 - Dec 2021 (1 year)
    • Elaborated basic concepts in object-oriented programming and data structures for tutees with 90%+ endorsement • Guided students to master Java language and finish CS assignments by explaining underlying logic and providing feasible hints
  • PwC
    Data Analytics Intern
    PwC
    Jun 2020 - Aug 2020 (3 months)
    • Processed 2M+ corporation annual financial data by cleaning, aggregation, transformation, etc., and conducted feature engineering to generate 30+ indicators (e.g., Asset Quality Index, etc.) using Python. • Visualized financial indicators related to corporation credit ratings by Tableau and filtered companies with low credit rating performance or significant fluctuations in recent periods. • Built random forest and GBDT models to predict company credit ratings with Python scikit-learn libraries to support investment decisions of Risk Control department, achieving 90%+ accuracy.
Education verified_user 0% verified
  • Columbia University
    Master of Science - MS, Data Science
    Columbia University
    Aug 2022 - Nov 2023 (1 year 4 months)
    Coursework: Algorithms for Data Science, Applied Machine Learning, Exploratory Data Analysis & Visualization, Probability & Statistics, Statistical Inference & Modeling, Database Systems, Natural Language Processing, Time-Series Forecasting, etc.
  • Duke Kunshan University
    Bachelor of Science (Dual Degree Program, Data Science
    Duke Kunshan University
    Aug 2018 - May 2022 (3 years 10 months)
    Dean's List with Distinction/Dean's List for each semester; Graduation with Summa Cum Laude (highest honor).
  • Duke University
    Bachelor of Science (Dual Degree Program, Data Science
    Duke University
    Aug 2018 - May 2022 (3 years 10 months)
    Skills: Python
Awards verified_user 0% verified
  • Duke Kunshan University
    Latin Honor - Summa Cum Laude
    Duke Kunshan University
    May 2022
    Graduation with Highest Honor for Academic Excellence.
  • J
    2021 China National Endeavour Scholarship
    Jiangsu Ministry of Education
    Oct 2021
    One of the ten scholarship holders at Duke Kunshan University in 2021.