本文提出了一种计算指数效用函数的最小叉熵方法。
Study on the Text Segmentation Method Based on Minimizing Entropy;
行为的敌友指数效用函数模型，在个体水平上说明了利他、利己、损人和搭便车行为发生的条件和程度，指出它们都是符合经济学规律的。
The utility function model of friendship index expounds the prerequisite and degree of altruistic, egoistic, harm and ride-free behavior that they conform to economic law.
该方法既克服了期望值-差法和夏普指数法的不足，又在一定程度上避免了效用函数构造的困难。
The new method has overcomed the shortcomings of the Expectation-Variance method and Sharpe's Index method, and avoids the inconvenience of constructing utility function to a certain extent as well.
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