Education

• 1972 Seoul National University. Physics B.S.
• 1977 Stanford University. Physics M.S.
• 1978 Stanford University. Management Science M.S.
• 1981 Stanford University. Management Science Ph.D.

Research experience

• 1982.4 ∼ Present : Professor in Department of Industrial and System Engineering, Graduate of Information Security, KAIST, Korea
• 1986.8 ∼ 1987.7 : Associate Professor in Department of Management Information Arizona State University, United States
• 1996.6 ∼ 1999.6 : An Outside Director, Korea Internet Security Agency (KISA)
• 1998.4 ∼ 2001.4 : An Outside Director, KASCO, Co, Ltd
• 2003.1 ∼ 2003.12 : Chairman of Korea Institute of Information Security and Cryptography
• 2008.1 ∼ 2009.12 : Chairman of The Korean Operations Research and Management Science Society

Research goal

• Communication system design and operation management using OR methodologies.
• Develop various technical methodologies for information security

Research area

Selected publications

• "A Counterattack-Detection Scheme in Transmission Time-Based Wormhole Detection Methods", 2013, International Journal of Distributed Sensor Networks, , Volume 2013, Article ID 184931
• "A distributed sinkhole detection method using cluster analysis", 2010, Expert Systems with Applications, , Volume 37, Issue 12, pp. 8486-8491
• "Fairness-Aware Resource Allocation in a Cooperative OFDMA Uplink System", 2010, IEEE Transactions on Vehicular Technology, Vol. 59, No. 2, pp. 932-939
• "Feature Construction Scheme for Efficient Intrusion Detection System", 2010Journal of Information Science and Engineering, Volume 26, Issue 2, pp. 527-547
• “An Efficient Borrowing Channel Assignment scheme for Cellular Mobile Systems”, IEEE Transactions on Vehicular Technology, Volume 47, Issue 2, pp. 602-608, May 1998
• “Multiple Criteria Clustering Algorithm for Solving the Group Technology Problem with Multiple Process Routings”, Computers & Industrial Engineering, Volume 32, Issue 1, pp. 207-220, Jan 1997

Patent

• 광대역 네트워크에서의 분산 서비스 거부 공격 탐지 및 대응 방법, 2007
• 이동 애드혹 네트워크의 침입탐지 에이전트 선택 방법, 2006

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