At the same time some problems, such as negative correlation, selection of correlation coefficient, are discussed also.
同时，也对指标间的负相关、相关系数的选择等问题进行了探讨。
Research the effect of the different kinds of vehicle in path selection, the analysis of vehicle differential benefit and toll coefficient.
重点研究收费标准对各车型路径选择的影响，收费公路级差效益分析和收费系数的分析。
The takeover time coefficient is given, so the influence of different selection operators and transformation of fitness function can be measured quantitatively.
同时，提出了取代时间系数的概念，可以定量地衡量不同的选择算子、适应度函数变换方式的作用。
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