Supported by Samsung Scholarship (from 2008 to 2017)
EE 364a (Convex Optimization I) Course Assistance, 2013-14 Winter
CS 161 (Design and Analysis of Algorithms) Course Assistance, 2012-13 Spring
CS 97SI (Introduction to Competitive Programming Contests) Instructor, 2011-12 Winter
Stanford ACM-ICPC Coach and Problem Setter, 2010 - Present
Korea Olympiad in Informatics (KOI) Coach and Problem Setter, 2008, 2012
International Olympiad in Informatics (IOI) Student Coach for the Korea team, 2013
This year's Korea team won 2 golds and 2 silvers, placing 3rd (unofficial country rank).
USA Computing Olympiad (USACO) Coach and Problem Setter, 2008 - 2011
Some random USACO stuff can be found here.
2007: Silver (7th place)
David Kamm and Jaehyun Park, “Cortically Inspired Architectures for Action Recognition in Movie Clips”, Computational models of the neocortex final project, 2010. (pdf)
Michael Harris, David Kamm, Jaehyun Park, and Jeffrey Wang, “Unsupervised Learning of Invariances in Deep Networks”, Research project in artificial intelligence with Professor Andrew Ng, 2010. (slides)
Michael Harris, Jaehyun Park, and Jeffrey Wang, “Deep Networks on the GPU”, Machine learning final project, 2010. (pdf)
Jaehyun Park, “Clone Detection in a Software Using Graph Modeling”, Research project with Professor Byung-Ro Moon (Seoul National University), 2006. (pdf in Korean)
Research intern at Microsoft Research, 2013
Software engineer at imo.im, 2011
Software engineer at Facebook, 2009
In 2012, I won the Humanities & Sciences Undergraduate Prize in Music for my performance of Chopin's 4th Ballade.
My recordings are uploaded here. Below are some of the most recent ones.
Rachmaninoff: Piano Concerto No. 1 in F sharp minor, Movement 3 (video) (2nd piano: George Barth, December 2012)
Jaehyun's Senior Recital live recordings (May 2012)
Beethoven: Cello Sonata No. 3 in A major, Movement 1 (video) (cello: John Pardon, February 2012)
Rachmaninoff: Piano Concerto No. 3 in D minor, Movement 3 (video) (2nd piano: George Barth, March 2011)
Rachmaninoff: Piano Concerto No. 3 in D minor, Movement 2 (video) (2nd piano: George Barth, December 2010)
This video was part of a PandoDaily article “Top 5 Stanford CS Students You Should Know,” posted on March 30th, 2012. The article is gone now, and only the video is remaining.