运筹学教授推荐。运筹学入门教材。
The term operations research was coined during World War II when British military leaders asked scientists and engineers to analyze several military problems such as the deployment of radar and the management of convoy, bombing, antisubmarine, and mining operations
■ objective function(s) ■ decision variables ■ constraints
目标函数：效益=(服务商利润+用户收益之和)/用户出价之和
决策变量：资源基础价格（关于时刻t和资源类型的价格函数），用户对资源（包含时间和类型描述）的竞价
约束：资源总量有限，时间有限
多目标问题：ERA系统是多目标问题吗？或者，我如何定义ERA系统的问题？
feasible region（可行域）：如何找到ERA系统的可行域？
static model/ dynamic model: 很显然ERA系统是动态模型。
linear model / non-linear model: 很显然ERA系统是非线性模型。
Deterministic and Stochastic Models：ERA系统应该是非确定性模型。但是为方便起见，可以近似为确定性模型。
- Step 1: Formulate the Problem
- Step 2: Observe the System
- Step 3: Formulate a Mathematical Model of the Problem
- Step 4: Verify the Model and Use the Model for Prediction
- Step 5: Select a Suitable Alternative
- Step 6: Present the Results and Conclusion of the Study to the Organization