I want to go over my experience at Flatiron School, with online data science boot camp. I hope that this blog posting would help those who’re considering taking this online program.

Below link was my initial thought about starting out my online boot camp. I basically wanted to change my…


Why is it not Friday yet? I want to go home so bad. I should quit this job tomorrow. Who am I? What am I doing here? I hate myself and everything that I do at work!

If you have a job, and working to earn paychecks, you must have…


Natural Language Processing methods

Natural languages are languages that human uses. It’s different computer languages. Computer languages are binary consist of 0s and 1s, and there are 171,476 different English words in current use. When someone types “Good Morn’n Rosa” in to computer, it sees only “01000111 01101111 01101111 …”…


Visualization techniques

“A picture is worth a thousand words” is an English quote from old days. It means that visual representation worth so much more than many descriptive sentences. Our job as a data scientist is to come up with predictive models and delivering the result to our stakeholders or…


I am going to discuss about different machine learning classification models today. I tried many different classification methods on my NLP project, and all had different results. These are the list of methods that I’m going over today.

a. Logistics Regression

b. Support Vector Machine

c. Multinomial Naïve Base model


My mod5 project was binary clarification project from Kaggle. I had to utilizing machine learning models on a challenging large-scale dataset to distinguish fraudulent card transaction from dataset from Vesta’s real-world e-commerce transactions. The goal is to predict the probability of online transaction is fraudulent, as marked by binary target…


“If you know the enemy and know yourself, you need not fear the result of a hundred battles.” is popular quote from Sun Tzu, the author of Art of War. Even though the quote doesn’t sound relevant to everyday life these days, it still can be used for almost everything…

Hyungjun Kang

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