Dr. Hansuk Sohn (손 한석), Associate Professor

Contact Information
Office: Room 292,
Ed and Harold Foreman Engineering Complex
Phone: (575) 646-2957
Fax: (575) 646-2976
E-mail: hsohn@nmsu.edu

 

Research Interests

Dr. Sohn’s research interests focus on the study of large scale computational science and engineering. This includes the implementation of decomposition techniques to optimize integer programming, stochastic programming, and dynamic programming. Some applications of interests are network design, logistics, and supply chain management. He teaches Operations Research I & II, Discrete Optimization.

EDUCATION | ACADEMIC APPOINTMENTS | AREAS OF RESEARCH INTERESTS | SELECTED PUBLICATIONS | COURSES TAUGHT | HONORS AND AWARDS

EDUCATION

  • Ph.D. Industrial Engineering, University of Iowa, USA, May 2004
  • M.S. Industrial Engineering, University of Iowa, USA, May 1995
  • B.S. Industrial Engineering, Sung-Kyun-Kwan University (SKKU), Korea, February 1992.

 

ACADEMIC APPOINTMENTS

Assistant/Associate Professor:

Dept. of Industrial Engineering, New Mexico State University                             Spring 2006- present

Post Doctorate:

Center for Computer-Aided Design, University of Iowa                                  Summer 2005 – Fall 2005

Post Doctorate:

Dept. ofIndustrial Engineering, University of Iowa                                    Summer 2004 – Spring 2005

Adjunct Lecturer:

Dept. of Industrial Engineering, University of Iowa,                                                          Spring 2001

Teaching Assistant:

Dept. of Industrial Engineering, University of Iowa,                                         Fall 1999 – Spring 2004

Research Assistant:

Dept. of Industrial Engineering, University of Iowa,                                                       Summer 2001

 

AREAS OF RESEARCH INTERESTS

  • Mathematical Programming (Linear, Integer, and Stochastic) and Dynamic Programming
  • Algorithm development (Optimization, Heuristic, and Hybrid algorithms)
  • Statistical Data Analysis and Data Mining
  • Typical Implementation Areas: (a) Logistics, Supply Chain Management, and Network Optimization; (b) Road Safety; (c) Fleet Routing and Scheduling; (d) Performance Measurement;
  • (e) Risk Management; (f) Production Planning; and (g) Educational Planning
  • Computer Programming Software: Xpress-MP, APL, LINGO, LINDO, SIMIO, Minitab, SAS, Simio and ArcGIS

PROJECTS

  • Optimizing the Performance of the Dona Ana County Ambulance Service, Dona Ana County, (PI), 2014. Click here for more information.
  • Performance Measurement for the Dona Ana County Ambulance Service, Dona Ana County, (PI), 2012.
  • Assessment of Impact of City of Las Cruces Safe Traffic Operations Program on Intersection Traffic Safety, City of Las Cruces, (PI), 2011.
  • BGREEN – Building a Regional Energy and Educational Network: A partnership to Integrate Efforts and Collaboration to Shape Tomorrow’s Hispanic Sustainable Energy Leaders, USDA/AFRI, (Co-PI), 2011.

PUBLICATIONS

Refereed Journal Articles

  • Benjamin Marlin and Han-Suk Sohn (2014), A simulation model with verification and validation for time phased education planning in Afghanistan, Simulation: Transactions of the Society for Modeling and Simulation International, Vol. 90, Issue 7, 800-814 (Impact Factor: 0.692).
  • Benjamin Marlin and Han-Suk Sohn (2013), Time Phased Manpower Model for Education Planning in Afghanistan, Educational Planning, Vol. 21, No. 2, 40-57.
  • Benjamin Marlin and Han-suk Sohn (2013), “Manpower Modeling and Sensitivity Analysis for Afghan Education Policy,” International Journal of Industrial Engineering: Theory, Applications and Practice, Vol. 20, No. 3-4, 273-281 (Impact Factor: 0.123).
  • Ming-Che Lai, Han-suk Sohn, Dennis L. Bricker, and Tzu-Liang Tseng (2012), “A Hybrid Benders/genetic algorithm for vehicle routing and scheduling problem,” International Journal of Industrial Engineering: Theory, Applications and Practice, Vol. 19, No. 1, 33-46 (Impact Factor: 0.123). Click here for additional information.
  • Hong Kim, Han-Suk Sohn, and Dennis L. Bricker (2011), “Generation Expansion Planning using Benders’ Decomposition and Generalized Networks,” International Journal of Industrial Engineering, Vol. 18, No. 1, 25-39 (Impact Factor: 0.123). Click here for additional information.
  • Han-Suk Sohn, Dennis L. Bricker, and Tzu-Liang Tseng (2011), “Mean Value Cross Decomposition for Two-Stage Stochastic Linear Programming with Recourse,” The Open Operational Research Journal, Vol. 5, 34-42.
  • Zhonghai Zou, Tzu-Liang Tseng, Han-suk Sohn, Guofang Song, and Rafael Gutierrez (2011), “A rough set based approach to distributor selection in supply chain management,” Expert Systems with Applications, Vol. 38, 106-115 (Impact Factor: 2.908).
  • Ming-Che Lai, Han-suk Sohn, Tzu-Liang Tseng, and Chunkuan Chiang (2010), “A Hybrid Algorithm for Capacitated Plant Location Problems,” Expert Systems with Applications, Vol. 37, 8599-8605 (Impact Factor: 2.908). Click here for additional information.
  • Han-suk Sohn, John Lee, Dennis Bricker, and Joshua Hoffman (2008), “A Dynamic Programming Model for Scheduling of In-Vehicle Message Display,” IEEE Transactions on Intelligent Transportation Systems, Vol. 9, Issue 2, 226-234 (Impact Factor: 2.09).
  • Han-suk Sohn and Dennis L. Bricker (2008), Utilizing the Surrogate Dual Bound in Capacity Planning with Economies of Scale, Algorithmic Operations Research, Vol. 3, 67-78 (New Journal).
  • Han-suk Sohn and Dennis L. Bricker (2007), Cross Decomposition of the Degree-Constrained Minimum Spanning Tree problem, Journal of Systemics, Cybernetics and Informatics, Vol. 5, No. 1, 31-34.
  • Benjamin Marlin and Han-suk Sohn, A hybrid DOE/DEA approach to assess simulated futures in the Afghan educational system (In-Review, 2014) Click here for additional information.
  • Han-suk Sohn, “A Cross-Decomposition Scheme for Capacitated Minimum Spanning Tree,” (in review).
  • Han-suk Sohn, Dennis Bricker, Tzu-Liang Tseng, and Wei-Min Liarng, “Simultaneous Capacity Requirements Planning and Material Requirements Planning in Production,” (in review).
  • Hsieh, Yi-Chih, Sohn, Han-Suk, and Dennis Bricker (2004), “Generating (n,2) De Bruijn Sequences with Some Balance and Uniformity Properties,” Ars Combinatoria 72, 277-286 (Impact Factor: 0.315).
  • Sohn, Han-Suk, Dennis Bricker, J. Richard Simon, and Yi-Chih Hsieh (1997), “Optimal Sequences of Trials for Balancing Practice and Repetition Effects,” Behavior Research Methods Instruments and Computers 29(4), 574-581 (Impact Factor: 2.92).

Book Chapter

  • Ming-Che Lai, Han-suk Sohn (2012), “Using a Genetic Algorithm to Solve the Benders’ Master Problem for Capacitated Plant Location.” In: Bio-Inspired Computational Algorithms and Their Applications, Shangce Gao (Ed.), ISBN: 978-953-51-0214-4, InTech.

Conference Proceedings

  • German Reyes and Hansuk Sohn, “Challenges on Bio-fuels Distribution Network in the US,” Proceedings of the 2nd Southwest Energy Science and Engineering Symposium, El Paso, TX, March 24, 2012.
  • German Reyes and Hansuk Sohn, “Sustainable Fleet Management Plan on NMSU Campus,” Proceedings of the 83rd Annual National Technical Association Conference, Washington, DC, September 14-16, 2011.
  • Tzu-Liang Tseng, Chun-Che Huang, Johnny C. Ho, Yongjin Kwon, Hansuk Sohn, and Richard Chiou, “Quality Assurance in the Dip Spin Coating Manufacturing Process Using Data Mining,” Proceedings of the Industrial Engineering Research 2009 Conference, Miami, FL, May 30 – June 3, 2009.
  • Tzu-Liang Tseng, Kalyan Aleti, Chun-Che Huang, Johnny C. Ho, Yongjin Kwon, Richard Chiou, and Hansuk Sohn, “E-Quality Control: A Support Vector Machines Approach,” Proceedings of the Industrial Engineering Research 2009 Conference, Miami, FL, May 30 – June 3, 2009.
  • Han-Suk Sohn, Dennis L. Bricker, and Ming-Che Lai, “A Novel Approach for Two-Stage Stochastic Linear Programming with Recourse,” Proceedings of the International Symposium on Management, Engineering and Informatics 2006 Conference, Orlando, FL, July 16-19, 2006.
  • Han-Suk Sohn and Dennis L. Bricker, “Cross Decomposition of the Degree-Constrained Minimum Spanning Tree problem,” Proceedings of the International Symposium on Management, Engineering and Informatics 2006 Conference, Orlando, FL, July 16-19, 2006.
  • Ming-Che Lai and Han-Suk Sohn, “A Hybrid Genetic-Benders’ Algorithm with Applications to capacitated Plant Location Problems,” Proceedings of the International Symposium on Management, Engineering and Informatics 2006 Conference, Orlando, FL, July 16-19, 2006.
  • Han-Suk Sohn, Tzu-Liang (Bill) Tseng, Chun-Che Huang, Dennis L. Bricker, Fuhua Jiang and Johnny C. Ho, “Novel Approach to Design of a Centralized Data Communication Networks Using Research 2006 Conference, Orlando, FL, May 20-24, 2006.

COURSES TAUGHT

 At New Mexico State University

  • IE413 Engineering Operations Research I
  • IE423 Engineering Operations Research II
  • IE451 Engineering Economy (DE)
  • IE490 Sustainability and Economics (DE)
  • IE533 Linear Programming (DE)
  • IE535 Discrete Optimization (DE)
  • IE539 Fundamentals of Transportation and Routing in Logistics
  • IE490/590 Selected Topics: Location and Routing in Logistics (DE)
  • IE590 Selected Topics: Transportation and Routing in Logistics (DE)

Note: For each graduate level course, students learn about optimization solver packages such as

LINDO, LINGO, Xpress-MP, and APL

 

dash_optimization Xpress-MP Suite

Leading Optimization Software

Linear Programming

Mixed Integer Programming

 

We use software from Panopticon for information visualization.

New Mexico State University uses Simio simulation software
under a grant from Simio LLC (www.simio.com).

 

At the University of Iowa

  • 56:072 Engineering Economy
  • 56:161 Quality Control
  • 56:171 Operations Research
  • 56:172 Introduction to Industrial Robotics
  • 57:022 Principles of Design II


HONORS AND AWARDS

  • Ed and Harold Foreman Faculty Excellence Award, College of Engineering, New Mexico State University, January 2013
  • Best Session Paper Award: Cross Decomposition of the Degree-Constrained Minimum Spanning Tree Problem (The 2nd International Symposium on Management, Engineering and Informatics (MEI 2006), Orlando, Florida, July 16-19, 2006)
  • Distinguished member, NMSU Teaching Academy, 2007 – 2008
  • Sustaining member, NMSU Teaching Academy, 2006 – 2007
  • ITAL 2007 Recipient, NMSU ICT Training Services, 2007
  • Marquis Who’s Who in America, 2008, 2009
  • AcademicKeys Who’s Who in Higher Education Engineering, 2006
  • Nominated for Outstanding Teaching Award, University of Iowa, April 2004
  • Outstanding Teaching Assistant Awards (3), Institute of Industrial Engineers, University of Iowa Student Chapter, December 2003, June 2003, & December 2002
  • Award for Excellent Teaching (Quality Control), Center for Teaching, University of Iowa, June 2003
  • Alpha Phi Mu Honor Society for Industrial Engineers, University of Iowa, November 2000