Zongzhi Wang

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This paper introduces a model which combine support vector machine with genetic algorithm to predict the ecological water demand. With the sharply increasing conflict of supply and demand of water resources, the ecological water demand volume is becoming scarce. The prediction of ecological water demand is an important part to the water resource programming(More)
Water resources system is the coupling of complex living system which joint formed by nature, society, economic and technology. It has the characteristics of open, stochastic, dynamic and can show different combination relationship in space and function. As the behavior subject of development and utilization of water resources, the objective of human(More)
Gain loss due to out of stock, increasing inventory cost due to amass stock, limited self-capacity (self-inventory and lease inventory make the stock cost differences), uncertainty of lead time, make the optimal point problem complex. Use the nonparametric statistics method to randomly simulate the lead time distribution, propose the average expense model(More)
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