Aiming at the uncertain networks, the shortest path problem with stochastic parameters is studied and the expected value model with constraints is constructed.

针对不确定网络，研究具有随机参数的最短路径问题，采用随机数表示路径权值的不确定性，建立有约束的期望最短路模型。

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Then, whenever we have a new data point, with an unknown output value, we put it through the model and produce our expected output.

之后，只要我们有一个输出值未知的新的数据点，我们都可以将其放入这个模型并生成预期的输出。

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In this paper, the model established has obtained the expected result and has important instructive meaning to pomiculture in theory, meanwhile also has important practical value.

本论文所建立的模型已经达到了预期的效果，并可以在理论上指导果树栽培，在实际应用中具有重要的实用价值。

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This may be the best-known danger in derivatives dealing: everyone in the markets knows that if shares stop trading or the share prices become much more volatile than expected, an option's market value will differ from the model's valuation.

ECONOMIST: Blind faith