Internship Experience

Life Singularity

Basking Ridge, NJ

September 2023 – December 2023

Data Scientist

• Utilized SQL to extract laboratory data from the internal database, ensuring accurate and efficient data retrieval

• Implemented diverse machine learning models such as SVM, Logistic Regression, Gradient Boosting, and XGBoost for medical data classification and integrated these models with Tableau using Tabpy, enabling the development of interactive data visualizations

• Executed Positive-Unlabeled Learning for obesity prediction in the absence of negative data, achieving a remarkable recall of 0.98

• Built and optimized an LSTM model using Keras for BMI value and health status prediction, attaining a low RMSE of 2.28 and significantly outperforming benchmark models

Georgetown University

Washington, D.C.

May 2023 – August 2023

Data Science Teaching Assistant

• Revamped the Data Science Summer Bootcamp teaching website, which contains programming and visualization in Python and R

• Graded the assignments of 7 students and held weekly office hours to answer any question relevant to the summer bootcamp

Tongcheng Elong

Suzhou, China

July 2021 – September 2021

Data Analyst

• Applied SQL to query and manipulate extensive datasets, involving 1.5 billion data rows and 3.8 million independent users

• Conducted in-depth monthly evaluations of 2021 operations, dissecting business volume, conversion rates, and retention rates across various cities and user channels, and created insightful dashboards using Tableau to aid in decision-making

• Developed a comprehensive user portrait index system, taking into account user attributes, activity, retention, and consumption levels, and employed SQL to construct a unified user data table, resulting in a remarkable 30% boost in efficiency for related business processes

Competition Experience

2020 SAS China Data Analytics Championship

Evaluation of the Safety and Effectiveness of the Diabetes Drugs

Guangzhou, China

October 2020 – December 2020

• Utilized SAS software to apply non-parametric statistics methods, including the Wilcoxon rank sum test and Fisher exact test, for evaluating the safety and efficacy of experimental drugs compared to placebos

• Employed Logistic Regression and decision trees to identify influential factors (e.g., BMI, diastolic pressure) impacting drug effectiveness

• Formulated a third phase clinical trial for diabetes drugs based on data analysis from a second phase trial with 204 subjects

• Won the 2nd prize in China (ranked 21st)

National College Mathematical Modeling Competition

Fitting and Optimization of Furnace Temperature Curve Based on ODE Model

Shanghai, China

September 2020

• Constructed a differential equation model based on Newton Cooling Equation and Stefan Boltzmann Law, synthetically considering thermal convection and thermal radiation

• Used Euler Method to seek the solution of established differential equation and found out the change law of furnace temperature

• Won the 3nd prize in Shanghai

Mathematical Modeling Competition of Tongji University

Establishment of Medical Resource Allocation Model under Epidemic Situation

Shanghai, China

April 2020 – May 2020

• Set up the minimum cost flow model combined with greedy algorithm to find the optimal medical material transportation scheme considering both time and cost

• Built a 0-1 programming model and general integer programming model according to constraint conditions including distance, medical level and population

• Utilized Lingo software to obtain the most reasonable connection scheme between streets and hospitals in case of emergency epidemic situation

• Won the 2nd prize at Tongji University

Leadership Experience

Vice Minister

Student Union (Arts and Sports Department)

 
School of Mathematical SciencesTongji University

Shanghai, China

September 2019 – August 2020

• Arrange weekly meetings among 15 department members to assign and summarize the work

• Held large-scale cultural and recreational events in the college, including sports meeting and drama performing competition, with a total of more than 200 people from different grades participating

• Won the Social Activity Scholarship of Tongji University

Volunteer Experience

Engineering Practice Volunteer

Chengdu, China

January 2020

I led middle school students on a visit to Sichuan University’s machine tools facilities, where we explored traditional crafts and advanced technologies. Additionally, I guided the students through hands-on practice sessions.

Charity Event Volunteer

Chengdu, China

January 2019

In this charity event, I taught 20 children with autism how to draw, encouraging them to express the stories behind their artwork. Furthermore, I facilitated communication among the children, guiding them to share their experiences with one another.

css.php