Explorations

 
 

June 20 2020

Những tuần gần đây, mình đọc một số bài viết về nạn phân biệt chủng tộc ở Mĩ, chủ yếu là từ trải nghiệm cá nhân của từng người. Cho đến rất gần đây, mình vẫn nhìn việc phân biệt chủng tộc này từ một góc rất hạn hẹp: góc độ cá nhân. Bạn Trang Quạ viết: “sự kì thị này ăn sâu vào tiềm thức của các cá thể trong cộng đồng”. Mình đồng ý. Nhưng vấn đề chủng tộc ở Mĩ lớn hơn từng cá thể rất …

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May 3 2020

It took me 30 minutes to figure this out. I hope it takes you less. Earlier today, I submitted a manuscript to GECCO Hot-Off-the-Press track. The submission process was pretty straightforward, until I hit Submit and encountered this error: […] All fonts must be embedded in the PDF. […] Googling this error led me to fiddle around with Acrobat Reader, try different TeX engines and …

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March 22 2020

A few days after nonessential business closing due to the COVID-19 pandemic, the streets and trails of Philadelphia are filled with runners. While it’s nice that a lot of people have reverted to this basic form of exercise, Welcome to the club! it pains us regular runners physically when we see you run in jeans and cotton t-shirts. If running for you is a outdoor family activity and the goal is …

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December 27 2019

Earlier this month, I had a blast leading a machine learning workshop at an R Ladies Philly meetup. After an introduction to machine learning, we used a beer review dataset to predict the alcohol concentration of beer using the caret R package. We even dabbled in text analysis. Everyone was awesome and asked many excellent questions throughout! I used RStudio Cloud to facilitate this workshop to …

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November 27 2019

In the last Quaker Strong challenge in the spring (March Madness edition), I was competing with several friends and enjoyed seeing how they were doing with the challenge. However, this time, with 46 registered participants, I figured it might be fun to write a few lines of code and make some fun visualization out of the logged progress. Code and details can be found here. To protect the …

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