I am a postdoctoral Research Fellow in Computer Science and Engineering at the University of Michigan, Ann Arbor. My research interests are building systems and developing algorithms for large-scale data analytics. I am leading the VerdictDB project.

I received a Ph.D. in Computer Science and Engineering at the University of Michigan, Ann Arbor in 2017, advised by Michael Cafarella and Barzan Mozafari. I received a B.S. from Seoul National University. I am a recipient of 2018 ACM SIGMOD Jim Gray Dissertation Award runner-up.

My (out-of-date) curriculum vitae is available here.
I am best reached at my email: pyongjoo@umich.edu.


Awards & Honors

  1. ACM SIGMOD Jim Gray Dissertation Award runner-up, June 2018

  2. ACM SIGMOD Student Travel Award, May 2017

  3. Rackham Travel Grant, January 2017

  4. Kwanjeong Ph.D. Fellowship, 2013

  5. Jeongsong Graduate Study Fellowship, 2011

  6. National Science Scholarship (Korean government), 2004

Peer-reviewed publications (click here to see other publications/talks)

  1. VerdictDB: Universalizing Approximate Query Processing
    Yongjoo Park, Barzan Mozafari, Joseph Sorenson, Junhao Wang
    SIGMOD 2018
    (pdf), (technical report), (slides)

  2. Demonstration of VerdictDB, the Platform-Independent AQP System
    Wen He, Yongjoo Park, Idris Hanafi, Jacob Yatvitskiy, Barzan Mozafari
    SIGMOD 2018 (demo) (pdf)

  3. Database Learning: Toward a Database that Becomes Smarter Every Time
    Yongjoo Park, Amhad Shahab Tajik, Michael Cafarella, Barzan Mozafari
    SIGMOD 2017
    (pdf), (technical report), (slides)

  4. Active Database Learning
    Yongjoo Park
    CIDR 2017 (abstract)
    (pdf)

  5. Visualization-Aware Sampling for Very Large Databases
    Yongjoo Park, Michael Cafarella, Barzan Mozafari
    ICDE 2016
    (pdf), (technical report), (slides), (demo)

  6. Neighbor-Sensitive Hashing
    Yongjoo Park, Michael Cafarella, Barzan Mozafari
    PVLDB 2015
    (pdf), (supplementary document), (slides), (code)

  7. Brainwash: A Data System for Feature Engineering
    Michael Anderson, Dolan Antenucci, Victor Bittorf, Matthew Burgess, Michael Cafarella, Arun Kumar, Feng Niu, Yongjoo Park, Christopher RĂ©, Ce Zhang
    CIDR 2013
    (pdf)

Professional service

  1. Program Committee, aiDM workshop 2018

  2. Publicity Chair, ACAIA workshop 2017

  3. Reviewer, SIGMOD 2018

  4. Reviewer, VLDB Journal 2017

  5. External Reviewer,
    CIDR 2017,
    VLDB Journal 2016, VLDB 2016, SIGMOD 2016,
    VLDB 2015, ICDE 2015, CIDR 2015