Research Experience

Electronics and Telecommunications Research Institute

Senior Researcher, 2014 to Present

  • Project (ongoing): Multi-cloud service common framework
    • Role: design and development of multi-cloud platform, open-source based project management, standardization activity
  • Project: Heterogeneous multi-cloud service brokerage platform
    • Role: design and development of a cloud service brokerage platform, analysis of open-source projects, operation of openstack cloud testbeds, standardization activity
  • Project: Big data-based IT system operation and analysis framework
    • Role: design of a system for a big-data analytics-driven resource management in virtual EPC (NFV-based LTE core network)

TestMidas, Inc.

Senior Researcher, 2013 to 2014

  • Project: An open source-based testing tool for Cloud OS validation
    • Role: design and development of openstack validation tool, openstack-based cloud API testing.

Gwangju Institute of Science and Technology (GIST)

Ph.D. Student, 2009 to 2012

  • Project: Relaxed-criteria concurrent SLA negotiations for bolstering dynamic provisioning of personalized Cloud resources
    • Role: researches for bargaining-based cloud SLA establishment and cloud resource management

Gwangju Institute of Science and Technology (GIST)

Master Student, 2006 to 2008

  • Project: Development of e-organ system based on cyber computing
    • Role: development of a high resolution interactive brain visualization system (3D brain, MRI, and EIT images)
  • Project: Research on realistic digital broadcasting technology
    • Role: development of a realistic broadcasting system
  • Project: Development of Immersive 3D networked virtual environment technology
    • Role: development of a delay compensation mechanism to mitigate network delay problems in 3D network virtual environment with haptic devices


Professional Activity

Open Source Project Contribution

Reviewer for Reputed Journals

  • ACM Computing Surveys (ACM)
  • IEEE Transactions on Cloud Computing (IEEE)
  • IEEE Transactions on Service Computing (IEEE)
  • Journal of Supercomputing (Springer)
  • Information Systems Frontier (Springer)
  • International Journal of Cloud Computing (Inderscience)
  • ETRI Journal (Wiley)

International Standardization

  • ITU-T SG13 : main contributor of Y.csb-reqts (recommendation for cloud service brokerage requirements)
    • Activities to obtain editorship of Y.csb-reqts document (Geneva, June 2016)
    • 19 proposals (contributions) have been accepted for Y.csb-reqts
  • ITU-T SG13 : main contributor of Y.mc-reqts (recommendation for multi-cloud requirements)
    • Activities to obtain editorship of Y.mc-reqts document (Geneva, June 2019)
    • 3 proposals (contributions) have been accepted for Y.mc-reqts
  • Committee of Korea ITU Committee

Conference Committee

  • Paper Session Chair: The 2012 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA’12), Cloud Computing Session
  • Conference Committee: Mexico Satellite Session of IEEE BigData (Mexico City, May 8, 2014)

Invited Talk

  • Invited Talk regarding Introduction to Container-based Computing Platform (feat. Kubernetes), 2020
  • Invited Talk regarding Getting Involved in Kubernetes SIG Docs and Korean Localization, Kubernetes Forum Seoul (LinuxFoundataion), 2019
  • Invited Talk regarding Cloud Computing with IoT, Handong-Univ., 2017
  • Invited Talk regarding Cloud Service Brokerage Systems, in the Education and Training for CSP experts sponsored by Consortium of Cloud Computing Research , 2016
  • Invited Talk regarding HPC over Cloud, in Korea Supercomputing Conference 2015, 2015
  • Invited Talk regarding HPC Cloud, in SCENT HPC Summer School at GIST, 2015
  • Invited Technical Committee for Cloud computing and Big data, National Computing & Information Agency (Government data center of Korea), 2012
    • invited expert and lecturer of the SMART Cloud group in NCIA which is a national institute to operate information systems of Korea government. Made several lectures during a year regarding Cloud computing and big data to 30 public officials including senior civil servants.
  • Invited Expert for Cloud computing and parallel computing systems, Mokwon University in Korea, 2012-2013
    • assisted a research team in Mokwon University to help the team construct a distributed computing system to process massive data from a large antenna.


Honor and Award

  • Award from Startup Idea Contest 2020 of ETRI
  • Best Paper Presentation Award from Korea Information Science Society 2014
    • Best paper presentation in Korea Computer Congress 2014
  • Best Paper Presentation Award from Korea Information Science Society 2012
    • Best paper presentation in Korea Computer Congress 2012
  • Amazon Web Services (AWS) in Education Research Grant 2012
    • A research proposal has been accepted from Amazon Web Services, Inc
  • National Scholarship for PhD from Korea government 2009–2013
    • Full financial support from Korea government as a PhD student in GIST
  • National Scholarship for MS from Korea government 2006–2008
    • Full financial support from Korea government as a MS student in GIST
  • Brain Korea 21 (BK21) Scholarship (3 times) 2003–2005
    • Scholarship from BK21 organized by Ministry of Education and Human Resources Development of South Korea.
  • Pukyong National University Scholarship for Top Student (2 times) 2005–2006
    • A financial support that fully covers a BS semester, given to a student who achieved the highest GPA in a semester.