发明名称 |
Method to provide sensitivity information for lost-sale (R, s,S) inventory systems |
摘要 |
Sensitivity information about average lost sales and inventory levels of a lost-sale (s,S) inventory system with respect to the two decision variables s and S is used for "what-if" analysis and optimization of the decision variables. Computer software implements an algorithm that provides sensitivity of average inventory levels as well as average lost sales with respect to changes in s and q(q=S-s) for a lost-sale inventory simulation for any specified demand distribution. The sensitivity information provided is exact when compared to a finite-difference simulation for the case of both discrete and continuous, stationary and non-stationary demands. A finite difference estimate of the sensitivity is obtained by running two simulations where the parameter in question (s or S) differ by a chosen small number, and then calculating the resulting difference in the performance measure of interest, in this case average inventory and lost sales.
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申请公布号 |
US6006202(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19970922286 |
申请日期 |
1997.09.03 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
RAMASWAMY, SANJAY ELATHUR;LEUNG, YING TAT;CHENG, DINAH W. |
分类号 |
G06Q10/00;(IPC1-7):G06F17/60 |
主分类号 |
G06Q10/00 |
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