Welcome to BY's Homepage

Passion, Professional , Integrity
삶이 어려운 것은 가난하기 때문이 아니라 욕망이 죽어가기 때문이다. -익숙한 것과의 결별중에서-


Byeong-Yun Chang(장병윤), Ph.D.
Assistant Professor
Office: 312 Dasan Hall
Phone/Fax: (031)219-2909/1616
Email: bychang@ajou.ac.kr
School of Business Administration
Ajou University
San5, Woncheon-dong, Yeongtong-gu
Suwon, Korea(South) 444-749






Page Map

  1. Education
  2. Research
  3. Positions Held
  4. Students
  5. Publications
  6. Courses
  7. Projects
  8. Important Links


Education


Research

  • Information & Telecommunication Management
  • Management Science/Operations Research
  • Simulation
  • Applied Statistics
  • Operations Management
  • Supply Chain Management


Positions Held

  • Editor in Chief, The Korea Society for Simulation, 2011 - present.

  • Assistant Professor, College of Business Administration, Ajou University, 2009 - present.

  • Senior Research Engieer, Network Research & Development Lab. in KT, 2006 - 2009.

  • Postdoctoral Fellow, School of Industrial & Systems Engineering, Georgia Institute of Technology, 2004 - 2006.


Students

Current Students

  • Chun-Kwi Min (Graduate)
  • Le Viet Thang (Graduate)
  • Chettra Kim (Graduate)
  • Baraka Aligaesha (Graduate)
  • Gun-Su Jeon (Graduate)
  • In-Cheol Ryu (Undergraduate)
  • Young-Hun Shin (Undergraduate)

Past Students

  • Assel Kassymbekova, (MBA Degree), Working in Kazakhstan Government
  • Won-Kyu Bang, (MBA Degree), Working in RIST
  • Yabibal Afework (MBA Degree), Working in Ethiopia University
  • Pham Hoang Hai (MBA Degree), Working in Vietnam Government
  • Mato James Magobe (MBA Degree), Working in Tanzania University
  • Hyo-Won Kim(Student), Ajou University


Publications after Joining Ajou

Books

  1. "수요와 공급의 매칭(전략적 생산/운영관리)" 번역본 <-- Matching Supply with Demand (An Introduction to Operations Management) by Cachon and Terwiesch", to be published in 지필미디어, 2012.

Journal

  1. Byeong-Yun Chang, Y. Afework, S.-J. Ko, J.-H. Lee, "A Study on Determinants of Cloud Computing Adoption in Republic of Korea", Accepted in Journal of Informatin Technology, 2012.
  2. Byeong-Yun Chang, X. Li, Y. B. Kim, "Performance Comparison of Two Diffusion Models in a Saturated Mobile Phone Market", Submitted to Technology Forecasting and Social Change, 2012.
  3. Byeong-Yun Chang, M. J. Magobe, S.-G. Lee, "E-Commerce Applications for Firm Performance in the Tanzanian Tourism Industry, Submitted to Service Business,2012.
  4. Byeong-Yun Chang, B.J. Park, "Periodic Review Production Models with Variable Yield and Inventory Level Dependent Demand", International Journal of Control and Automation, 2012.
  5. W. Bang, Byeong-Yun Chang, "Quality Factor Analysis of Metalworking Process with AHP", submitted to International Journal of Production Research, 2012.
  6. Byeong-Yun Chang, A. Kassymbekova, "The Relationship between FDI and Economic Growth: Kazakhstan Case", Journal of the Korea Society for Simulation, 2012.
  7. S. H. Yoon, Byeong-Yun Chang, D. W. Seo, Y. H. Jeong, "A Mathematical Programming Approach for Multilayer Routing", under Review in Information, 2012.
  8. J. H. Lee, Byeong-Yun Chang, J. Y. Choi, D. W. Seo, S. D. Kim, "A Resampling Method for Fine Resolution Frequency Estimation", submitted to IEEE Transactions on Signal Processing, 2012.
  9. D. W. Seo, S. M. Lee, Byeong-Yun Chang, "An Approximation Method for Blocking Probabilities in M/D/1/K1 --> */D/1/K2 Queues under Heavy Traffic Load", submitted to Operations Research Letters, 2012.
  10. D. W. Seo, Byeong-Yun Chang, "New explicit formulas for the blocking probability and others in finite capacity M/D/1 queues", Working Paper, 2012.
  11. Byeong-Yun Chang, Christos Alexopoulos, David Goldsman, "Estimation Techniques for Nonlinear Functions of the Steady-State Mean in Computer Simulation", Working Paper, 2012.
  12. S. H. Seok, B. Chung, B. Park, Byeong-Yun Chang, "Optimal Staffing Level of Network Operations and Management Centers", Cyber Journals: Journal of Selected Areas in Telecommunications, 2011.
  13. B. J. Park, F. A. Alisherov, Byeong-Yun Chang, Efficient Mobile Anchor Point Messaging Assupmtion in IPv6 based Wireless Mobile Networks, Advanced Materials Research, 2011
  14. Byeong-Yun Chang, "Business Process Management of Telecommunication Companies: Fulfillment and Operations Support and Readiness Cases", International Journal of Future Generation Communication and Networking, 2011.
  15. Y. M. Yang, Byeong-Yun Chang, "A Probability Embedded Expert System to Detect and Resolve Network Faults Intelligently", Journal of IWIT, 2011.
  16. Byeong-Yun Chang, D.-W. Seo, B.J. Park, "A Study on VoIP Service Quality Management", Journal of IWIT, 2011.
  17. K. Lee, B. Park, Byeong-Yun Chang, "ERSF: Fast Handover based Enhanced Routing Scheme in FMIPv6 for Improving QoS in Wireless/Mobile Networks", The Journal of Koeran Institute of Information Technology, 2010.
  18. J. UK, Byeong-Yun Chang, "Selection of suppliers using the analytic network process", 품질경영학회지, 제37권 4호, Dec., 2009.
  19. Byeong-Yun Chang, B.J. Park, S.J. Hwang, "Design and Implementation of a Real Time Process Management System for Telecom Operations and Management", Journal of Intelligence and Information Systems, Vol. 15, No. 3, Sep., 2009.
  20. M.H. Song, B.J. Park*, G.H. Park, Y.T. Kim, D.C. Lee, Byeong-Yun Chang, "A Study on Fast Handover Scheme for Seamless Multimedia Transmission in Wireless Networks", Journal of IWIT, Vol. 9, No. 3, June, 2009.
  21. H.S. Yoo, R.S. Tolentino, B.J. Park, Byeong-Yun Chang, S.H. Kim, "ES-FHMIPv6: An Efficient Scheme for Fast Handover over HMIPv6 Networks", International Journal of Future Generation Communication and Networking, Vol. 3, No. 1, June, 2009.

Conference

  1. Byeong-Yun Chang, "A Review on Simulation Output Analysis", AsiaSim, 2011.
  2. A. Kassymbekova,Byeong-Yun Chang, "A Study on FDI and Economic Growth in Kazakhstan", World Business and Economics Research Conference, 2011.
  3. Byeong-Yun Chang, B. Kim, S. Yoon, D. W. Seo, "An Evaluation of Federated Cloud Computing Effect with Service Level", ICCP, 2011.
  4. C. H. Lee, Byeong-Yun Chang, "Optimal order quantity in single period inventory level dependent demand and random yield models", SCIS and ISIS, 2010.
  5. S. H. Seok, M.-K. Kwon, B. Chung, B. Park, Byeong-Yun Chang, "A Study on Finding Optimal Network Operators Level", ICSSE, 2010.
  6. Byeong-Yun Chang, Christos Alexopoulos, David Goldsman, "Estimation Techniques for Nonlinear Functions of the Steady-State Mean in Computer Simulation", INFORMS, 2009.

Publications before Joining Ajou

Thesis

  • Byeong-Yun Chang, "Estimation Techniques for Nonlinear Functions of the Steady-State Mean in Computer Simulation", Georgia Institute of Technology, 2004, co-advised by David Goldsman and Christos Alexopoulos.

Journal and Conference

  • Christos Alexopoulos, Byeong-Yun Chang, David Goldsman, Sungjoo Lee, William Marshall, "Overcoming negativity problems for cramer-von mises variance estimator", International Journal of Simulation and Process Modelling, Inderscience, 2008.
  • Byeong-Yun Chang, James W. Hong, B.-D. Chung, "Design and implementation of real time process management system to realize real time enterprise", Fall Conference, KMIS, 2008
  • Byeong-Yun Chang, James W. Hong, K.-H. Kim, B.-D. Chung, "Field operations management and unmanned operations management toward NOM 2.0", LNCS 5297, Springer, 2008
  • K.-H. Kim, Byeong-Yun Chang, M.-K. Kwon, S.-H. Seok, "A study on the reliable and flexible implementation of workforce management using business process management", LNCS 5297, Springer, 2008
  • Y.-J. Kwak, Byeong-Yun Chang, James W. Hong, B.-D. Chung, "A study on the service quality management process and its realization strategy for capturing customer value", LNCS 5297, Springer, 2008
  • Byeong-Yun Chang, James W. Hong, B.-D. Chung, "Network operations and management analysis", Summer Conference, KICS, 2008
  • Byeong-Yun Chang, James W. Hong, B.-D. Chung, "Analysis of network operations management processes", KNOM Review, 2008
  • Byeong-Yun Chang, James W. Hong, B.-D. Chung, "A study on SOA(Service Oriented Architecture)", JCCI, 2008
  • Byeong-Yun Chang, James W. Hong, B.-D. Chung, "A remote control architecture for changing network operations and management environment", KNOM Conference, 2008
  • Byeong-Yun Chang, S.-J. Ko, James W. Hong, B.-D. Chung, "A study on telecommunication power operations management", ICACT, IEEE, 2008
  • Byeong-Yun Chang, H.-S. Kim, S.-J. Ko, James W. Hong, "A study on royal company customer care", NCS, 2007
  • H.-S. Kim, Byeong-Yun Chang, K.-B. Min, B.-S. Chang, "A study on integrated customer care architecture", Fall Conference, KIIE, 2007
  • Byeong-Yun Chang, S.-J. Ko, James W. Hong, "Design and analysis of telecommunication power operations and management", Fall Conference, KIIE, 2007
  • Byeong-Yun Chang, H.-S. Kim, S.-J. Ko, James W. Hong, "A study on service problem management and resource trouble management on a telecommunication network", LNCS 4773, Springer, 2007
  • Byeong-Yun Chang, H.-S. Kim, S.-J. Ko, James W. Hong, "Next generation network trouble management", KNOM Review, 2007
  • S.-J. Ko, H.-J. Kim, S.-B. Moon, Byeong-Yun Chang, James W. Hong, "The remote control method of FTTH equipment for providing network service and obtaining the accurate network data", IC-BNMT, 2007
  • Byeong-Yun Chang, S.-J. Ko , James W. Hong, "Introduction of NGOSS and network operations and management using eTOM", Spring Conferenc, KORMS, 2007
  • Byeong-Yun Chang, H.-S. Kim, S.-J. Ko, James W. Hong, "A study on next generation network trouble management", KNOM Conference, 2007
  • S.-J. Ko, H.-J. Kim, S.-B. Moon, Byeong-Yun Chang, James W. Hong, "A study on the remote control method of FTTH equipment for providing network service and obtaining the accurate network data", KNOM Conference, 2007


Courses

Spring, 2012

  • Business Statistics (International Business MBA)
  • Mathematics for Management
  • Business Statistics
  • Global Management Statistics (Topic: Application of Advanced Statistical Models to Global Management) (Graduate Course)

Fall, 2011

  • Operations Management (International Business MBA)
  • Business Statistics (International Business MBA)
  • Operations Management
  • Business Simualation (Graduate Course) (Korean)
  • MBA Statistics and Computer (MBA) (Korean)

Spring, 2011

  • Mathematics for Management
  • Business Statistics
  • Operations Management
  • Advanced Business Statistics (Graduate Course) (Korean)
  • MBA Statistics and Computer (Samsung Electro-Mechanics)

Fall, 2010

  • Quantitative Business Analysis
  • Quantitative Business Analysis (Korean)
  • Business Statistics
  • Business Statistics (International Graduate Course)

Spring, 2010

  • Quantitative Business Analysis
  • Business Statistics
  • MBA Statistics and Computer

Fall, 2009

  • BIZ 101 Quantitative Business Analysis 3
  • BIZ 101 Quantitative Business Analysis 4
  • BIZ 103 Business Statistics
  • MBA Statistics and Computer

Spring, 2009

  • BIZ 101 Quantitative Business Analysis
  • BIZ 103 Business Statistics

Projects

  1. Application of Probability and Statitistical Models to Production/Service Areas as Project Team Member, Ajou University, 2011.
  2. Simulator Development for Optimal Performance Design of Detction Radar as PI, DGIST, 2011.
  3. ICT Resources Virtualization Based on Packet and Optical Networks as Project Team Member, ETRI, 2011.
  4. Multilayer Integrated Routing in Packet and Optical Networks as Project Team Member, ETRI, 2010.
  5. Application of Probability and Statitistical Models to Production/Service Areas as Project Team Member, Ajou University, 2010.
  6. Business Statistics Special Lecture for Six Sigma Professionals, Halla Climate Control, 2010.
  7. Telecommunication Business Process Management Special Lecture, Samsung SDS, 2010.
  8. Telecommunication Frequency Distribution Architecture Improvement as Project Team Member, Korea Communication Agency, 2010.
  9. Optimal Staffing Level of Network Operations and Management Centers as PI, KT, 2009 - 2010.
  10. Process Design and KQI/KPI Management for Improving VoIP Quality Management as PI, Ajou University, 2009.
  11. Design and Implementation of Global Operations Support System to Realize Real Time Enterprise as PM, KT, 2008
  12. Design of Telecommunication Service Quality Management Architecture as Project Team Member, KT, 2008
  13. Ananlysis and Architecuture Design of Network Operations and Management as PI, KT, 2007
  14. A Remote Control Architecuture Design of Network Operations and Management as Project Team Member, KT, 2007
  15. Ananlysis and Architecuture Design of e-TOM based Network Operations and Management as Project Team Member, KT, 2006
  16. Enhancing Judgment and Exploiting Flexibility in Response to Dynamic Hurricane Forecasts as Project Team Member, NSF, 2005-2006
  17. Stochastic Modeling and Staff Optimization for a Call Center as Project Team Member, A Big Fastfood Restaurant, 2005
  18. Forecasting Methodology Development for Used Car Auction Pricing as Project Team Member, A Big Used Car Auction Company, 2005

Important Links


last update 08/27/2012