• B.Eng. in Chemical Engineering, Chulalongkorn University, Thailand
• M.S. in Industrial Engineering, Oregon State University, USA
• M.S. in Statistics, Oregon State University, USA
• Ph.D. in Industrial Engineering, Oregon State University, USA

Applied operations research, Data mining, Production planning and control, Systems simulation, and Engineering economics analysis, Logistics & supply chain management.

Applied Operations Research

The main focus is to effectively and efficiently solve application problems using existing, modified or newly developed optimization tools. Various applications of interest include, but are not limited to, 1) resource-constrained project scheduling problems in project management; 2) parallel replacement problems in engineering economic decision analysis; 3) vehicle routing, facility location, and supply chain optimization in logistic and supply chains, and 4) production planning and controls in manufacturing and agro-industrial plants.

Data Analysis for Process/Product Optimization and Improvement

Process and product can be optimized or improved by using the information contained in the process data. Data analysis tools of interest include statistical data analysis, design and analysis of experiments, statistical process control, statistical sampling, and data mining.

Systems Simulation Modeling and Analysis

The research involves modeling of actual and large complex systems using computer simulations and conducting analyses on the simulation models. The objectives are to study and predict the behavior of actual systems, to improve/optimize the performance of existing systems, or to design new systems.

• June 2006 – Present: Assistant Professor, School of Manufacturing Systems and Mechanical Engineering, Sirindhorn International Institute of Technology, Thailand
• September 2003 – April 2006: Assistant Professor, Department of Industrial and Manufacturing Systems Engineering, University of Michigan-Dearborn, USA
• August 1997 – June 2003: Graduate Research Assistant, Department of Industrial and Manufacturing Engineering, Oregon State University, USA
• September 1998 – December 2002: Graduate Teaching Assistant, Department of Industrial and Manufacturing Engineering, Department of Statistics, Oregon State University, USA

Teaching Courses

• Engineering Statistics
• Methods Analysis and Work Measurement
• Methods Analysis and Work Measurement Lab.
• Applied Statistical Methods

Journal Publications

• Buddhakulsomsiri, J., Parthanadee, P., and Pannakkong, W. Prediction models of starch content in fresh cassava roots for a tapioca starch manufacturer in Thailand, Computers and Electronics in Agriculture, 2018, 154, 296-303.
• Duc, T. T. H., Loi, N. T., and Buddhakulsomsiri, J. Buyback contract in a risk-averse supply chain with a return policy and price dependent demand, International Journal of Logistics Systems and Management, 2018, 30 (3), 298-329.
• Chau, L. T. D., Buddhakulsomsiri, J., and Dumrongsiri, A. Mathematical model for multiple products allocation of a distribution network, Panyapiwat Journal, 2017, 9 (Supplementary), 247-257.
• Singha, K., Jirachai Buddhakulsomsiri, J., and Parthanadee, P. Mathematical model of (R,Q) inventory policy under limited storage space for continuous and periodic review policies with backlog and lost sales, Mathematical Problems in Engineering, 2017, 2017, Article No. 4391970, 9 p.
• Buddhakulsomsiri, J., Parthanadee P., and Praneetpholkrang P. Determining appropriate production and inbound logistics practices for a cassava supply chain in Thailand, Kasetsart Journal (Natural Science), 2015, 49 (6), 937-950.
• Kessuvan, A., Parthanadee, P., and Buddhakulsomsiri, J. The study of consumption behaviors and factors affecting decision to purchase fishery products of consumers in the North and Northeast of Thailand, International Food Research Journal, 2015, 22 (6), 2670-2678.
• Buddhakulsomsiri, J., Pannakkong, W., and Nanthavanij, S. Application of association rule algorithm to industrial safety data mining, International Journal of Industrial and Systems Engineering, 2015, 21 (4), 415-437.
• Parthanadee, P. and Buddhakulsomsiri, J. Production efficiency improvement in batch production system using value stream mapping and simulation: a case study of roasted and ground coffee industry, Production Planning and Control, 2014, 25 (5), 425-446.
• Chitpakdeerat, W., Wasusri, T., Chaiwat, P., Kritjaroen, T., and Buddhakulsomsiri, J. The study of service quality of logistics service providers in Indonesia, KMUTT Research and Development Journal, January-March 2014, 37 (1), 77-88. (In Thai)
• Kongraksawech, A., Chaiwat, P., Wasusri, T., Kritjaroen, T., and Buddhakulsomsiri. J. A comparison of performance for logistics service provider between Malaysia and Thailand, MUT Journal of Business Administration, 2013, 10 (1), 59-79. (In Thai)
• Intarawongchot, P., Chaiwat, P., Wasusri, T., Kritjaroen, T., and Buddhakulsomsiri, J. Service quality of Thailand and Lao PDR logistics service providers, KMUTT Research and Development Journal, October-December 2013, 36 (4), 465-475. (In Thai)
• Donsomjitr, P., Wasusri, T., Buddhakulsomsiri, J., Chaiwat, P., and Kritjaroen, T. A comparison of service quality assessment between Cambodian and Thai logistics service provider by using SERVQUAL model, Journal of Social Sciences Srinakharinwirot University, January-December 2013, 16 (9), 14 p. (In Thai)
• Parthanadee, P., Buddhakulsomsiri, J., Charnsethikul, P. A study of replacement rules for a parallel fleet replacement problem based on user preference utilization pattern and alternative fuel considerations, Computers & Industrial Engineering, 2012, 63, 46-57.
• Buddhakulsomsiri, J., and Parthanadee, P. Simulation modeling and analysis for production scheduling using real-time dispatching rules: a case study in canned fruit industry, Computers and Electronics in Agriculture, January 2010, 70 (1), 245-255.
• Buddhakulsomsiri, J. and Zakaria, A. Sequential pattern mining algorithm for automotive warranty data, Computers & Industrial Engineering, August 2009, 57 (1), 137-147.
• Kim, David S., Porter, J. David, and Buddhakulsomsiri, J. Task time estimation in a multi-product manually operated workstation, International Journal of Production Economics, July 2008, 114 (1), 239-251.
• Buddhakulsomsiri, J., and Parthanadee, P. Stratified random sampling for estimating billing accuracy in health care systems, Health Care Management Science, March 2008, 11 (1), 41-54.
• Buddhakulsomsiri, J., and Kim, D. S. Priority rule-based heuristic for multi-mode resource-constrained project scheduling problems with resource vacations and activity splitting, European Journal of Operational Research, April 2007, 178 (2), 374-390.
• Buddhakulsomsiri, J.,and Kim, D. S., 2006. Properties of multi-mode resource-constrained project scheduling problems with resource vacations and activity splitting, European Journal of Operational Research, November 2006, 175 (1), 279-295.
• Buddhakulsomsiri, J., Siradeghyan, Y., Zakarian, A., and Li, X. Association rule generation algorithm for mining automotive warranty data, The International Journal of Production Research, July 2006, 44 (14), 2749-2770.

Conference Papers

• Pannakkong, W., Saophan, P., Chaysiri, R., Tang, J., Buddhakulsomsiri, J., Parthanadee, P., Jeenanunta, C., and Vitharana, H. Forecasting solar power for self-consumption of households in Thailand using system dynamics model, the 23^rd Asia-Pacific Decision Science Institute International Conference (APDSI 2018), Bangkok, Thailand, July 2018.
• Buddhakulsomsiri, J., Huyen, P. P. N., Singha, K. Determination of optimal order-up-to-level quantity for inventory system under stochastic demand and lead time, the 23^rd Asia-Pacific Decision Science Institute International Conference (APDSI 2018), Bangkok, Thailand, July 2018.
• Buddhakulsomsiri, J., Parthanadee, P., and Tuan, D. T. A mathematical model for optimizing feed mixes raw material requirement in Thailand, the 23^rd Asia-Pacific Decision Science Institute International Conference (APDSI 2018), Bangkok, Thailand, July 2018.
• Fachrizal, M., Tang, J., Chaysiri, R., Jeenanunta, C., Buddhakulsomsiri, J., Pannakkong, W., and Parthana Parthanadee. Geo-demographic segmentation of residential solar photovoltaic users and non-users in Thailand, the 23^rd Asia-Pacific Decision Science Institute International Conference (APDSI 2018), Bangkok, Thailand, July 2018.
• Kongtarat, V., Jeenanunta, C., and Buddhakulsomsiri, J. Inventory balancing in optimal order-up-to-level systems under power long lead time, the 23^rd Asia-Pacific Decision Science Institute International Conference (APDSI 2018), Bangkok, Thailand, July 2018.
• Leelertkij, T., Parthanadee, P., and Buddhakulsomsiri, J. A mathematical model for the capacitated vehicle routing problem with transshipment, the 2017 International Conference on Innovation, Management and Industrial Engineering (IMIE 2017), Osaka, Japan, 8-10 August 2017, 3 (1), 152-158.
• Singha, K., Buddhakulsomsiri, J., and Parthanadee, P. Optimal cycle service level for continuous stocked items with limited storage capacity, the 3^rd International Conference on Agro-Industry (ICOA 2016), Bangkok, Thailand, November 2016.
• Vongsomtakul, T., Buddhakulsomsiri, J., and Parthanadee, P. An association between market intervention policies and the financial performance of cassava product manufacturers, the 3^rd International Conference on Agro-Industry (ICOA 2016), Bangkok, Thailand, November 2016.
• Pattawekongka, R. and Buddhakulsomsiri, J. Simulation modeling of chilled distribution center for order picking improvement, the International Conference on Business and Industrial Research (ICBIR 2016), Bangkok, Thailand, May 2016.
• Thonethong, S. and Buddhakulsomsiri, J. Simulated annealing algorithm for vehicle routing problem with transshipment, the International Conference on Business and Industrial Research (ICBIR 2016), Bangkok, Thailand, May 2016.
• Nguyen, D. T., Buddhakulsomsiri, J., and Singha, K. A method for determining inventory policy parameters for a single product under limited space, the International Conference on Business and Industrial Research (ICBIR 2016), Bangkok, Thailand, May 2016.
• Nguyen, L. T., Troung, T. H. D., and Buddhakulsomsiri, J. A Computational study of risk-averse parameter effects on a 2-stage supply chain coordination under refund-dependent demand, the 3^rd International Conference on Artificial Intelligence, Modelling and Simulation (AIMS 2015) [CD-ROM], Kota Kinabalu, Sabah, Malaysia, December 2015. 
• Singha, K., Parthanadee, P., and Buddhakulsomsiri, J. A comparison of inventory management between decentralized and centralized distribution networks with backorder, Lecture notes in Electrical Engineering: Industrial Engineering, Management Science and Applications 2015: the 2^nd International Conference on Industrial Engineering, Management Science and Applications (ICIMSA-2015), Tokyo, Japan, May, 2015, 349, 485-490.
• Romadlon, F., Buddhakulsomsiri, J., Parthanadee, P., and Pannakkong, W. Logistics cost estimation and analysis for exporting green bean from Indonesia to Singapore, Journal of Food Science and Agricultural Technology: the 2^nd International Conference on Agriculture and Agro-Industry (ICAAI2014), Chiang Rai, Thailand, November 2014, 1 (1), 47-53.
• Laksuwong, E., Pannakkong, W., Parthanadee, P., and Buddhakulsomsiri, J. A study of a single-period model for the parallel fleet replacement problem, 2014 6^th International Conference on Mechanical and Electrical Technology (ICMET 2014), Bangkok, Thailand, July 2014.
• Pannakkong, W., Buddhakulsomsiri, J., and Parthanadee, P. Simulation modeling ananlysis to support decision making of cassava harvesting in Thailand, the IEEE International Conference on Industrial Engineering and Engineering Management (IEEM 2013) [CD-ROM], Bangkok, Thailand, December 2013.
• Tansakul, C. and Buddhakulsomsiri, J. A gap analysis in service quality of Thai logistics service providers, the 4^th International Conference on Engineering, Project, and Production Management (EPPM 2013) [CD-ROM], Bangkok, Thailand, October 2013.
• Praneepholkrang, P.; Buddhakulsomsiri, J.; Raweewan M.; Parthanadee, P.; and Chaveesuk R. Inbound logistics cost analysis of cassava product industry in Thailand, the 8^th International Congress on Logistics and SCM Systems (ICLS 2013), Tokyo, Japan, August 2013.
• Tansakul, C.; Buddhakulsomsiri, J.; Wasusri, T.; Chaiwat, P.; and Kritjaroen, T. A study on service quality of Thai logistics service providers, the 8^th International Congress on Logistics and SCM Systems (ICLS 2013), Tokyo, Japan, August 2013.
• Somekhit, S.; Buddhakulsomsiri, J.; and Parthanadee, P. Short Haul Transportation Cost Estimation for Agricultural Product: A Case Study of Tapioca Products, the 7^th International Conference on Intelligent Manufacturing Logistics Systems (IML2011) [CD-ROM], Chung-Li, Taiwan, February-March 2011.
• Sunthornsaratul, T.; Buddhakulsomsiri, J.; and Parthanadee, P. Capacitated vehicle routing problem with pickup and delivery of inter-branch demand, the 7^th International Conference on Intelligent Manufacturing Logistics Systems (IML2011) [CD-ROM], Chung-Li, Taiwan, February-March 2011.
• Sanjaiya, M.; Buddhakulsomsiri, J. and Parthanadee, P. A stochastic savings algorithm for vehicle routing problem with a centralized distribution center and delivery time window, the 2^nd International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2011) [CD-ROM], Singapore. February 2011.
• Sanjaiya, M., Buddhakulsomsiri, J. and Parthanadee, P. A decision support system for vehicle routing problem with a centralized distribution center and delivery time window, the 1^st International Conference on Logistics and Transport (ICLT 2009), Chiang Mai, Thailand, December 2009.
• Auntreejun, W., Parthanadee, P. and Buddhakulsomsiri, J. Effect of demand forecasting points on the performance of procurement planning for herbal products, the 4^th International Congress on Logistics and SCM Systems (ICLS 2008), Bangkok, Thailand, November 2008.
• Monthatipkul, C., Khompatraporn, C., Parthanadee, P. and Buddhakulsomsiri, J. A study of supply chain for Thai tapioca starch products. the 4^th International Congress on Logistics and SCM Systems (ICLS 2008), Bangkok, Thailand, November 2008.
• Tong-On, P., Parthanadee, P. and Buddhakulsomsiri, J. A new mathematical model for minimizing deadheading distance, the 4^th International Congress on Logistics and SCM Systems (ICLS 2008), Bangkok, Thailand, November 2008.
• Buddhakulsomsiri, J. Framework for implementing data mining techniques in industrial safety data, the Eighth Pan-Pacific Conference on Occupational Ergonomics (PPCOE 2007), Bangkok, Thailand, October 2007.
• Parthanadee, P. and Buddhakulsomsiri, J. A new mathematical model for parallel replacement problem with alternative fuels and user-demand pattern, the 37^th International Conference on Computers and Industrial Engineering (CIE37), Alexandria, Egypt, October 2007.
• Buddhakulsomsiri, J. Sequential pattern analysis for automotive warranty data mining, Industrial Engineering Research Conference (IERC), Orlando, FL, May 2006.
• Buddhakulsomsiri, J., Parthanadee, P. Parallel replacement problem for a fleet with dependent use, Industrial Engineering Research Conference (IERC), Orlando, FL, May 2006.
• Parthanadee,P, Buddhakulsomsiri, J., and Kachhal, S. Stratification and clustering methods for billing accuracy in healthcare systems, Industrial Engineering Research Conference (IERC), Orlando, FL, May 2006.
• Sistla, P., Kang, H. T., and Buddhakulsomsiri, J. The effect of tire models on durability performance of vehicle body structure: A statistical approach, SAE World Congress 2006, Detroit, MI, April 2006.
• Buddhakulsomsiri, J., Parthanadee, P, and Kachhal, S. A stratified sampling plan for billing accuracy in healthcare systems, the 18^th Annual Society for Health Systems Conference, San Diego, CA, February 2006.
• Orady, E., Buddhakulsomsiri, J., and Dandekar, C. Implementation of statistical techniques in teaching manufacturing processes laboratories, SME 1^st Annual Manufacturing Technology Summit, Detroit, MI, August 2004.