Jeffrey (Sijun) Tan


University of Virginia

About Me

Why join the navy if you can be a pirate?

Hi, I am Jeffrey Tan, a third-year undergrad at the University of Virginia majoring in computer science and mathematics. I grew up in Guangzhou, China, a city known as the origin of the language Cantonese. Unfortunately, although borned and raised in Guangzhou, I do not know how to speak Cantonese. :)

I am a researcher in computer vision. I worked at UVa Vision Lab under Professor Vicente Ordenez. We are working on unsupervised learning of image representations through image patches.

Last summer I worked at Facebook‘s natural language processing team. I helped build the entity linking system that process billions of posts on Facebook each day. I have always dreamed of serving the entire world with technology and working at Facebook was a realization of that dream. I am grateful for the friends I have made and the insights I have gained during my great time there.

I am a brilliant bathroom singer and a not-so-bad guitar player. My journey of playing guitar is hugely inspired by Ed Sheeran, who can be perform like a whole band himself with just a guitar and a loop-pedal. I myself owns an Martin's Ed Sheeran Signature Guitar. Here is a video of me singing Thinking out loud by Ed Sheeran.


  • Our research project report Selling Information for Competitive Buyers for the class CS6501:Learning and Game Theory is out.
  • Our Django website Cabville: A rideshare platform for UVa students is up and deployed on heroku.


  • Privacy-Preserving Machine Learning
  • Computer Vision
  • Algorithmic Game Theory


  • B.S in Computer Science, 2017-2020

    University of Virginia

  • B.A in Mathematics, 2017-2020

    University of Virginia

Technical Projects

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