Hello! I am a first-year Ph.D. student in Computer Science Department at Carnegie Mellon University. I am fortunate to be advised by Prof. Carolyn Penstein Rosé and supported by Kwanjeong Educational Foundation. I previously worked as a researcher at Naver Labs and Professor U Kang‘s Data Mining Lab in SNU. I received B.S. in Computer Science at Korea Advanced Institute of Science and Technology (KAIST). My research interests cover:

  • Educational Data Mining, Discourse Analysis, Deep Learning, Scalable Machine Learning


E-mail : byungsoj (at) cs.cmu.edu
Web : http://bsjeon.xyz/
Blog : http://blog.bsjeon.xyz/

What’s New


  • Ph.D. student Aug 2017 - Present

    Computer Science Department, Carnegie Mellon University (CMU)

    Advised by Prof. Carolyn Penstein Rosé

  • Bachelor of Science Feb 2008 - Aug 2015

    Computer Science Department, Korea Advanced Institute of Science and Technology (KAIST)

    Summa Cum Laude - Overall GPA : 3.97/4.30, Major GPA : 4.07/4.30

  • High school Mar 2006 - Feb 2008

    Busan Science High School

    Graduated 1 year early from a high school that specialized in science

Relevant Coursework

  • Coursera: Machine Learning (Prof. Andrew Ng)
  • Coursera: Neural Networks (Prof. Geoffrey Hinton)
  • Coursera: Introduction to Data Science in Python (Prof. Christopher Brooks)
  • KAIST: Data Mining (Prof. U Kang)
  • KAIST: Introduction to Database (Prof. Kyu-Young Whang)
  • KAIST: Introduction to Linear Algebra
  • KAIST: Probability and Statistics

Work Experience

  • Research Intern Jan 2017 - Jun 2017

    Music Recommender System Team, Naver Labs

    - Develop end-to-end multimodal neural network model for music emotion recognition

  • Researcher Jan 2015 - Jun 2016

    Data Mining Lab (Prof. U Kang), Seoul National University (SNU)

    - Designed scalable algorithm for coupled matrix-tensor factorization, graph and tensor generation. 
    - Developed distributed Tera-scale Graph generation and Visualization tool (TeGViz). 
    - Developed large-scale tensor mining package (BIGtensor) providing tensor decompositions, generation, operations, etc on Hadoop, and distributed Tera-scale Tensor generation tool (TeT).

  • Undergraduate Researcher Jun 2014 - Dec 2014

    Database and Multimedia Lab (Prof. Kyu-Young Whang), KAIST

    - Designed workload generation model for performance evaluation of parallel DBMS for large-scale SNS.
    - Completed projects to implement operations of buff er, object, and B+ tree index manager in DBMS.

  • Software Engineer Dec 2012 - Oct 2013

    Funpresso, Inc

    - Designed compression algorithm for user's play data and the method to replay them without latency on mobile network environment.
    - Developed server (LAMP) and client (C++) of mobile services: online game ``Circus Runaway`` made of 120,000+ lines of C++ code, puzzle game ``MegaCircles DX`` made of 50,000+ lines of C++ code.

  • Research Intern Jun 2012 - Aug 2012

    Software Platform Research Center, LG Electronics

    Developed android application that recognizes human faces with OpenCV on multicore environment.

  • Member (Part-time) Feb 2012 - Dec 2012, Aug 2014 - Jun 2015

    Include, Mobile Application Club, KAIST

    Developed 1 to 50 game (C#), group alarm (JAVA), and forward-head posture detector (JavaScript).

  • Sergeant Feb 2010 - Dec 2011

    Information and Communications branch, Korean Marine Corps

    Administered network equipments: servers, routers, and crypto equipments while serving military duty.

  • Undergraduate Researcher Sep 2008 - Apr 2009

    Mechatronics, Systems and Control Lab (Prof. Soo-Hyun Kim), KAIST

    Designed bio-mimetic articulated mobile robot overcoming stairs by using a slinky moving mechanism.


  • 2017 - 2022
    Kwanjeong Scholarship for Ph.D. study
    Awarded from Kwanjeong Educational Foundation for promising PhD students. ($30,000 per year)
  • 2009 - 2014
    Scholarship for Academic Excellence
    Awarded from KAIST for top 4 students in computer science department.
  • Feb 2010
    KAIST Good Character Scholarship
    Awarded from KAIST for top 10 students who possess respectable character and shown a great deal of contribution to KAIST.
  • 2008 - 2015
    National Science and Technology Scholarship
    Awarded from Korea Student Aid Foundation (KOSAF) for excellent students in natural science and engineering in Korea.
  • Feb 2009
    Award for Outstanding Technical Paper in KAIST
    Awarded from KAIST for top 3 students in 2008 Fall Freshman Design course.
  • 2014 - 2015
    KAIST Tutoring Program Scholarship
    Awarded from KAIST for teaching students who help freshmen to learn Python.