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 and analytical insights for broader team on key metrics of competitive position, loss ratio performance, retention rate, conversion rate and policy life expectancy, which ensured the success of rate level changes, sales lifts, and marketing campaigns.

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 logistic regression on thirty-three features to build models for regions with different potential risk level in order to find out significant factors for predicting default probability

Master Of Arts - Ma, Statistics

Bachelor Of Science - Bs, Financial Actuarial Math And Statistics

High School Diploma