rank function

Based on Pareto rank and penalty function, the multi-objective genetic algorithm is used to solve the flexible-interval preventive maintenance optimization problem.

运用基于Pareto秩和罚函数的多目标遗传算法有效解决了弹性周期预防性维修计划的优化问题。

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When multiple outliers occur in linear regression model or the distribution of residuals is not normal, we can use residuals rank as weight function to get some resist estimator.

线性回归模型的误差项不服从正态分布或存在多个离群点时，可以将残差秩次的某些函数作为权重引入估计模型来减少离群点的不良影响。

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According to Huygens Principle, the computation of the second rank field of a flat plane can be solved by calling the first rank field function twice, so ray trace is the key.

根据惠更斯原理，平板二阶场的求场可以转化为一阶场的迭加，因此射线追踪就是平板二阶场计算的关键。

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The experiment results, showed that the magnitude of threshold is a key factor to the form of urban rank and function. The functions of advanced city contain all the functions of lower level city.

结果表明，对城市最终功能分工与等级体系的形成，门槛值的高低是一个关键因素；

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Water resource restricts strictly the existence and development of Zhangye oasis cities and towns. It has significant influence on the scale rank, function characteristic, spatial distribution, and eco-environment of oasis cities and towns.

水资源是绿洲城镇存在和发展的重要约束因子，它影响到绿洲城镇的产业结构、空间格局、规模等级及生态环境。

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In this paper, admissibility of linear prediction in finite populations with arbitrary rank under matrix loss function ( d-Qy)( d-Qy)' and quadratic loss function ( d-Qy)'A ( d-Qy).

本文分别在矩阵损失函数（d-Qy）（d-Qy）′和二次损失函数（d-Qy）′A（d-Qy）（A≥0已知）下研究了任意秩有限总体中线性预测的可容许性。

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While the administrative power is believed as the qualification or superiority of administrative organization or administrative personnel, who organize and manage the routine work within the scope of official duty according to the regular rank level and function post in certain organization system.

行政权力是行政组织或行政人员在一定的组织管理系统中按照固定的级别层次和职能划分，对职责范围内的事务性工作进行组织和管理的资格或优越性能。

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NSE of scale-free networks is presented analytically by introducing a degree-rank function.

通过引入度秩函数,解析地给出了无标度网络的网络结构熵.

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