My Industrial Internship

It seems as if the excitement and anticipation of getting started at Biogen Cambridge office was yesterday. I can still remember the intense ‘Jeopardy’ we played on the HR orientation day, everyone tried to reach the button with lightning speed,...

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A quick comparison between L1-LASSO and linear SVM

Recently I’ve been working on human lifestyle data to predict a certain disease. I have nearly ~4000 variables and would like to narrow down to a group of essential variables for the disease prediction. This process is called ‘feature selection’...

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Lessons learned from Ph.D qualifying exam

Sept. 29th, 2017 was the day that I passed my qualifying exam, while being judged by 7 committee members. I passed it with flying colors. But it wasn’t easy, actually it was not designed to be easy for anyone. For me, it was the uncertainty of the...

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Been There, Seen That. Face to face with opioid addicts.

I always consider myself as one of the lucky researchers. As a young scientist in the beginning of my career, the reason I believe I am lucky is not because of how much credit I got from doing research, nor does the research techniques I used have...

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My Battle in Subsetting Data with "NA"s

R is a language and environment for statistical computing and graphics. I use it daily for my research. To use a metaphor that resembles the relationship between R (or any other languages for the same purpose) and the data, it’s like mining precious...

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