Hello, my name is

Yiwei Cai

and I am a

Data Scientist

applying quantitative and problem-solving skills in a data-driven world

This is what I do


I am a Data Scientist with an operations research background and industry experience in solving real-world business problems.

I have solid knowledge in Machine Learning, Mathematical Optimization and Statistical Forecasting, and passionate about applying quantitative and problem-solving skills in a data-driven world.

Machine Learning

Giving your data a voice, a powerful voice

Data Science

Telling a meaningful story with your big data

Operations Research

Finding the optimal solution for your business

Lean Six Sigma

Improving your business performance continuously

My Projects

Skills mastery comes from practice. Here are some of my projects. Most of projects come from Udacity and Coursera.
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Fraud Detector

Machine Learning Enron Corporate Fraud Person of Interest Detector
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Hadoop Cluster

Udacity Discussion Forums Data Analysis through MapReduce
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Swiss Tournament

Python/PostgreSQL based Tournament Planner Database
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Spam Filter

Email Spam Classification using Support Vector Machine
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Digit Recognizer

Handwritten Digit Recognition using Aritificial Neural Networks
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Recommender

Collaborative Filtering based Movie Recommender System

My Skills

A data scientist need prodigious range of skills and knowledge to improve the decision-making process. You name it. I have it.
90

Python

70

R

80

Spark

85

SQL

85

Machine Learning

90

Data Mining

95

Operations Research

90

Statistics

ARE YOU READY TO START?

Check out my Linkedin page for more information.
Linkedin

Drop me a line

Please feel free to contact me if necessary. I am more than glad to network with talents all around the world.