Chiwan Park

Machine Learning Engineer @ Kakao Corp.

I’m a machine learning engineer at ART (Advanced Recommendation Technology) team of Kakao Corporation where I’m building recommender systems and machine learning applications for various mobile and web services of Kakao. Before joining Kakao ART team, I did some research on large-scale graph processing using distributed systems under guidance of Prof. U Kang at Seoul National University. Here is my full Curriculum Vitae.

Outside of paid works, I enjoy developing various softwares. I have contributed to some open-source software projects such as Apache Flink, and commonmark-java. You can see my activities about open-source software in Github.


  • Jan. 24, 2020 - A paper, "FlexGraph: Flexible partitioning and storage for scalable graph mining" was published to PLoS ONE.

  • Aug. 30, 2019 - I gave a talk named "상품 카탈로그 자동 생성 ML 모델 소개" at if (kakao)dev 2019.

  • Apr. 30, 2018 - I joined ART team of Kakao Corp. as a software engineer.

  • Nov. 10, 2017 - A demo paper, "PegasusN: A Scalable and Versatile Graph Mining System" was accepted to AAAI 2018.

  • Mar. 2, 2016 - I joined Data Mining Laboratory at Seoul National University as a master’s student.


Master of Science in Computer Science and Engineering

Mar. 2016 - Feb. 2018 Seoul National University, Seoul, Korea

Bachelor of Science in Earth System Sciences
Bachelor of Engineering in Computer Science (double major)

Mar. 2010 - Feb. 2016 Yonsei University, Seoul, Korea


FlexGraph: Flexible partitioning and storage for scalable graph mining

Chiwan Park, Ha-Myung Park, and U Kang. PLoS ONE 15(1): e0227032 [paper] [github]

PegasusN: A Scalable and Versatile Graph Mining System

Ha-Myung Park, Chiwan Park, and U Kang. Thirty-Second AAAI Conference on Artificial Intelligence (AAAI) 2018, New Orleans, Lousiana, USA. (Demo Paper) [paper] [homepage (code)]

PMV: Pre-partitioned Generalized Matrix-Vector Multiplication for Scalable Graph Mining

Chiwan Park, Ha-Myung Park, Minji Yoon, and U Kang. arXiv:1709.09099 [cs.DC] Sep. 2017. [paper]

A Distributed Vertex Rearrangement Algorithm for Compressing and Mining Big Graphs

Namyong Park, Chiwan Park, and U Kang Journal of KIISE, Vol. 43, No. 10, pp. 1131-1143, 2016. [paper] [homepage (code, dataset)]