Leah (Xinyi) Li

Data Science Portfolio

Hi I'm Leah, and I'm an aspiring Data Scientist. My portfolio focuses on interesting projects I've recently undertaken, with a strong emphasis on business impact. Please visit my Github & LinkedIn pages (or download my Resume) by using the links below!

13 minute read

Assessing Campaign Performance Using Chi-Square Test For Independence

In this project we apply Chi-Square Test For Independence (a Hypothesis Test) to assess the performance of two types of mailers that...

36 minute read

Customer Loyalty Machine Learning Regression Python

Predicting Customer Loyalty Using ML

Our client, a grocery retailer, hired a market research consultancy to append market level customer loyalty information to the datab...

7 minute read

Optimization Logistic E-Commerce Retail Numpy Python

Improve Efficiency for Walmart's Smart Logistics Warehouse System Using Python

In this project, I’m going to take the challenge of only using one package, Numpy, in Python that can efficiently provide Walmart’s ...

8 minute read

Python Primes

Finding Prime Numbers with Python

In this post I’m going to run through a function in Python that can quickly find all the Prime numbers below a given value. For exa...