Karen Lee

Data Science Portfolio

Hi I'm Karen, welcome to my Data Science portfolio. It is focused on interesting projects I've recently undertaken, all with a strong emphasis on business impact. Please visit my LinkedIn pages (or download my CV) by using the links below!

12 minute read

Compressing Feature Space For Classification Using PCA

In this project we use Principal Component Analysis (PCA) to compress 100 unlabelled, sparse features into a more manageable number ...

14 minute read

Customer Segmentation Machine Learning Clustering Python

Customer Segmentation Using k-means

In this project we use k-means clustering to segment up the customer base in order to increase business understanding, and to enhanc...

53 minute read

Customer Targeting Machine Learning Classification Python

Enhancing Targeting Accuracy Using ML

Our client, a grocery retailer, wants to utilise Machine Learning to reduce mailing costs, and improve ROI! Table of contents 0...

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...

13 minute read

AB Testing Hypothesis Testing Chi-Square Python

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...

Previous projects