Jeff Laurel, MS, RRT

Data Science Portfolio

Hi I'm Jeff, and I'm a Respiratory Therapist turned Data Scientist. My portfolio focuses on interesting projects I've recently completed, with an emphasis on business impact and machine learning using Python, unless otherwise noted. Please visit my Github & LinkedIn pages or download my Resume by using the links below!

11 minute read

Data Preparation & Feature Selection for Predicting Length of Stay

This project uses Python to demonstrate the steps for preparing a dataset with multiple variables and data types, and then selecting...

13 minute read

AB Testing Hypothesis Testing Chi-Square

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...

14 minute read

Causal Impact Analysis Time-Series

Quantifying Sales Uplift With Causal Impact Analysis

In this project I use Causal Impact Analysis to analyze & understand the sales uplift of customers that joined the new “Delivery...

14 minute read

Association Rule Learning Unsupervised Learning

Understanding Alcohol Product Relationships Using Association Rule Learning

In this project we use Association Rule Learning to analyse the transactional relationships & dependencies between products in t...

12 minute read

Classification PCA

Compressing Feature Space For Classification Using PCA

This project uses Principal Component Analysis (PCA) to compress 100 unlabeled, sparse features into a more manageable number for cl...

14 minute read

Customer Segmentation Clustering

The "You Are What You Eat" Customer Segmentation

This project uses k-means clustering to segment up the customer base in order to increase business understanding, and to enhance the...

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