Yanfei Wu

Blogs

I enjoy exploring interesting datasets for insights. Here are some of my data analysis results with links to the data and code included.

S&P 500 Stocks Analysis

By Yanfei Wu

August 19, 2017

Analyze historical prices of stocks in S&P 500 index; Calculate and compare stock performance metrics.

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Fraud Detection: Learning from Imbalanced Data

By Yanfei Wu

June 20, 2017

Different techniques for handling class imbalance are implemented to build fraud detection models using credit card transaction data.

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Machine Learning for Employee Retention

By Yanfei Wu

April 28, 2017

This post describes a machine learning approach to implementing an effective employee retention program.

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Lines from South Park

By Yanfei Wu

March 24, 2017

This post presents some analyses on South Park lines.

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"Toxic Beauty": Chemicals in Cosmetics

By Yanfei Wu

March 15, 2017

This post shows some facts you should know about your beauty products. It focuses on data cleaning and visualization.

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Sentiment Analysis: First Presidential Debate 2016

By Yanfei Wu

September 30, 2016

The first debate for the 2016 presidential election just took place several days ago. In this post, I showed some results of the sentiment analysis I did using tweets.

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Hello World!

By Yanfei Wu

August 26, 2016

This is my first blog post! A little about myself and my transition to data science.

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