· 2002.09.~2003.08.: Post-Doctoral Fellow at School of Industrial and Systems Engineering, Georgia Institute of Technology
· 2003.09. ~ 현재: 경희대학교 경영대학(국제경영대학) 교수
· 2007.03. ~ 현재: 한국시뮬레이션학회 이사 및 편집위원
· 2010.04.: 한국전자통신연구원 초빙연구원
· 2017 - 2018: Visiting Fellow at the School of Business and Management, Queen Mary University of London
· 2012.08.: Best Paper Award in AITS 2012
· 2013.01.~ 2015.01.: 한국시뮬레이션학회 학술지 편집위원장
· 2013.07.: 한국과학기술단체총연합회 제23회 과학기술우수논문상
· H. W. Lee, D.-W. Seo, "Design of a production system with a feedback buffer", Queueing Systems: Theory and Applications, 26, 187-202, 1997.
· H. Ayhan,D.-W. Seo, "Laplace Transform and Moments of Waiting Times in (max, +)-Linear Systems with Poisson Input", Queueing Systems: Theory and Applications, 37, 405-438, 2001.
· H. Ayhan,D.-W. Seo, "Tail Probability of Transient and Stationary Waiting Times in (max, +)-Linear Systems", IEEE Transactions on Automatic Control, 47(1), 151-157, 2002.
· D.-W. Seo, B-K. Song, "Application of (Max,+)-Algebra to the Optimal Buffer Size in Poisson Driven Deterministic Queues in Series with Blocking", LNAI 3642, 671-677, 2005.
· D.-W. Seo, S.-S. Ko, U. Jung, "Optimal Buffer Allocation in Tandem Queues with Communication Blocking", ETRI Journal, 31(1), 86-88, 2009.
· U. Jung, D.-W. Seo, "An ANP approach for R&D project evaluation based on interdependencies between research objectives and evaluation criteria", Decision Support Systems, Vol. 49, No. 3, 335-342, 2010.
· D.-W. Seo, H. Lee, "Stationary Waiting Times in m-node Tandem Queues with Production Blocking", IEEE Transactions on Automatic Control, Vol. 56, No. 4, 958-961, 2011.
· S.-S. Ko, J. Choi,D.-W. Seo, "Approximation of Lead-time Distribution in an Assemble-to-Order System under Base-Stock Policy", Computers and Operations Research, Vol. 38, No. 2, 582-590, 2011.
· D.-W. Seo, "Explicit formulae for characteristics of the finite capacity M/D/1 Queue", ETRI Journal, 36(4), 609-616, 2014.
· H. Lee,D.-W. Seo, “Explicit Expressions for Moments of Waiting Times in Poisson driven Deterministic Two-node Tandem Queues with Blocking”, OR Letters, 43, 203-208, 2015.
· D.-W. Seo, J. Lee, B.-Y. Chang, "An Approximation Method for Blocking Probabilities in M/D/1/K1 → •/D/1/K2 Queue", Asia-Pacific Journal of Operational Research, 32(3), 1550017 (12 pages), 2015.
· H. Lee, D.-W. Seo, “Performance Evaluation of WIP-Controlled Line Production System with Constant Processing Times”, Computers & Industrial Engineering, 94, 138-146, 2016.