Abstract
Procurement planning with discrete time varying demand is an important problem in Enterprise Resource Planning (ERP). It can be described using the non-analytic mathematical programming model proposed in this paper. To solve the model we propose to use a fuzzy decision embedded genetic algorithm. The algorithm adopts an order strategy selection to simplify the original real optimization problem into binary ones. Then, a fuzzy decision quantification method is used to quantify experience from planning experts. Thus, decision rules can easily be embedded in the computation of genetic operations. This approach is applied to purchase planning problem in a practical machine tool works, where satisfactory results have been achieved.
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This work was supported by Hong Kong Polytechnic University (No. G.45.37.T363), and the National Natural Science Foundation of PRC (No. 70431003, 60521003).
Kai Leung Yung received his B.Sc. degree from Brighton University, UK, in 1975, the M.Sc degree from Imperial College of Sci. & Tech., University of London, UK, in 1976, and the Ph.D. degree from Plymouth University, UK, in 1985. He has worked for BOC Advanced Welding Co. Ltd., British Ever Ready Group, and the Cranfield Unit for Precision Engineering, in UK. He is currently the associate head and professor of the Department of Industrial and Systems Engineering, the Hong Kong Polytechnic University.
His research interests include precision motion control, systems aspects of computer integrated manufacturing and management, and logistic planning and optimization.
Wai Hung Ip received his M.Sc degree in industrial engineering from Cranfield University, U.K., and the MBA degree from Brunel University, U.K. He was awarded Ph.D. degree in manufacturing engineering from Loughborough University, UK, in 1993. He is currently an associate professor at the Department of Industrial and Systems Engineering, the Hong Kong Polytechnic University.
His research interests include AI-based optimization and decision making, information systems and decision support systems.
Ding-Wei Wang received his B.Sc. degree from Northeastern University, China, in 1982, the M.Sc degree from Huazhong University of Science and Technology, China, in 1984, and the Ph.D. degree from Northeastern University, China, in 1993. He had worked as a post-doctor with North Carolina State University, USA. He is currently a professor of the Institute of Systems Engineering, Northeastern University, China.
His research interests include ERP/MRP-II/JIT, modeling and optimization, production planning and scheduling, fuzzy optimization, and soft computing.
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Yung, K.L., Ip, W.H. & Wang, DW. Soft computing based procurement planning of time-variable demand in manufacturing systems. Int J Automat Comput 4, 80–87 (2007). https://doi.org/10.1007/s11633-007-0080-x
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DOI: https://doi.org/10.1007/s11633-007-0080-x