Xixi Chen Email & Phone Number

Los Angeles, California, United States

-Developed and implemented underwriting models to filter out high-risk customers using machine learning algorithms, such as XGBoost, EBM, GLM and ensemble models.-Maintained and updated the underwriting models regularly through testing new external data and state-of-the-art machine learning models; improved model lifts by 18% on average.-Provided charts.

Los Angeles, California, United States

Boston (Remote)

-Assisted on managing AWS instance for web scrapping.-Used Python to conduct data analysis on Cook County’s property assessment and salesdatasets and assisted on ad hoc data related tasks.-Performed property valuation analysis and applied machine learning techniques including KNN, Random Forest, Ridge, and Lasso to predict Cook County’s property values.

Chengdu, Sichuan, China

-Conducted data cleaning and imputed missing values using R on the most recent data from Agricultural Bank of China for individual housing loan in Sichuan Province including twenty-one cities-Produced feature engineering on more than ten features by using feature representation and indicator variables to isolate key information -Applied multivariable.

Master Of Arts - Ma, Statistics

Bachelor Of Science - Bs, Financial Actuarial Math And Statistics

High School Diploma