This paper discussed the game theory model in MGDSS. The cost formula of gaining grey information has been showed.

本文探讨了市场营销群体决策支持系统中的博弈模型，构造了获取灰色信息条件下，所需成本的条件公式。

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Finally, we establish a cost formula about public traffic system, and bring forward a solution of shortest path of public traffic network.

建立了城市公共交通网络的阻抗函数，给出了公共交通网络最短路径的求解方法。

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Firstly, the cost function of water network was studied and the deficiency and solution of traditional cost formula of network was pointed.

首先对供水管网的费用函数进行了研究，指出了传统管网费用公式的不足及解决的方法。

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Concept: Inspired by the success of Southwest Airlines and JetBlue Airways in the States, this U.K. outfit, founded in April 2002, aimed to bring a similar low-cost formula to Europe.

FORBES: Quiz 6: Did This Entrepreneur's Idea Deliver?

Concept: Inspired by the success of Southwest Airlines (nyse: LUV - news - people ) and JetBlue Airways (nasdaq: JBLU - news - people ) in the States, this U.K. outfit, founded in April 2002, aimed to bring a similar low-cost formula to Europe.

FORBES: Quiz 6: Did This Entrepreneur's Idea Deliver?

Welsh Secretary David Jones said the tolls were set by a formula to repay the cost of building the bridges.

BBC: Severn Bridge tolls