Modeling Time-Cost Trade-off Problem with Fuzzy Activity Duration Times
The time-cost trade-off problem is a type of the project scheduling problem which studies how to modify project activities so as to achieve the tradeoff between the project cost and the completion time. In real projects, the trade-off between project cost and project completion time, and the uncertainty of the environment are both considerable aspects for decision-makers. In this paper, an expected value model for the fuzzy time-cost trade-off problem is proposed, in which credibility theory is applied to describe the uncertainty of activity duration times. A searching method as a hybrid intelligent algorithM integrating fuzzy simulation and genetic algorithm is produced to search the optimal schedules.
time-cost trade-off credibility theory fuzzy programming genetic algorithm
Weimin Ma Hua Ke
School of Economics and Management Tongji University Shanghai 200092, China
国际会议
北京
英文
344-347
2009-11-21（万方平台首次上网日期，不代表论文的发表时间）