With the mixing ratio calculated from the production scheduling, a mixed integer programming model of crude oil storage scheduling is presented based on the crude oil inventory and input planning, the relationship between crude oil storage in the port tank and in the refinery tank is fully considered 根据炼油生产调度得到的原油混炼比,结合原油库存和进厂计划,对原油储运调度问题建立了混合整数规划模型,分别就厂内罐区和码头罐区进行了详细的描述。
This paper also suggests an effective method of preventing premature of genetic algorithm is presented based on the analysis of causes of premature of genetic algorithms . some different local optima are found firstly and the best of these solutions is regarded as the last result . 0-1 integer linearity programming is an important integer programming model 另外ga在应用中还存在早熟收敛的问题,本文介绍了解决该问题的一种策略,对一个优化问题连续多次运行ga以求得多个不同的局部最优解,再从这多个局部最优解中挑选一个最优的作为算法的最后结果,该方法可大大提高了ga求得真正全局最优解的可能性。
Then, with respect to the objective of minimizing the total experimental cost, the optimal test plan ( including the sample size, inspection frequency, and the termination time needed by the classification rule for each of competing designs ) is derived by solving a nonlinear integer programming with a minimum probability of correct classification and a maximum probability of misclassification 首先,我们提出一种具直观优点的分?法则,然后以总试验成本的最小化为目标,并赋予一正确分?的最小机?要求和错误分?的最大容许机??个限制条件,以决定出在所提出的分?法则下,各竞标设计样式所需的样本?、?测频?和试验终止时间的最佳组合。
With the blending ratio calculated from production scheduling, a mixed integer programming model of oil storage and transfer scheduling is proposed based on the oil inventory and output planning, the problem of oil storage both in the port tank and in the refinery tank are solved, the results can be used for the oil management 根据炼油生产调度得到的油品调合比例,结合产品库存和出厂计划,对成品油的调合问题进行了描述。并分别以厂内罐区和码头罐区为对象,提出了成品油储运调度的混合整数规划模型,从而解决了成品油调合、存储和移动等一系列问题,为成品油罐区的管理提供了技术支持。
However, signals take effect by the switch of signal phases, which introduces integer control values into the traffic control problem, so the traffic control problem becomes a large-scale mixed integer programming problem, the computation of which requires an exponential-complexity optimiz ation algorithm 但是,信号灯通过相位切换对交叉口进行控制,同时也在交通控制模型中引入了整数决策变量,使交通控制模型成为一个大规模混合整数规划问题,需要指数复杂度的优化算法。
Jon edvardsson et al pointed out that the technique developed by neelam gllpta et al is neither complete nor terminationai for w on which all of the predicate functions with respect to the input variables are linear, and suggested using linear programming and linear ( mixed ) integer programming methods instead jonedvardsson等人指出,对于谓词函数均为输入变量的线性函数的程序路径,neelamgupta等人提出的求解方法是不完备的和非终止的,并建议采用线性规划、线性(混合)整数规划方法。
A path-wise test data generation framework is proposed in this thesis, whose fundamental algorithm is the improved method . this framework adopts a constraint solver using linear programming and linear ( mixed ) integer programming methods for w on which all of the predicate functions with respect to the input variables are linear . for w on which there is nonlinear function ( s ) with respect to the input variables 该框架以改进后的迭代松弛法为核心算法,对于谓词函数均为输入变量的线性函数的程序路径,采用基于线性规划、线性(混合)整数规划的约束求解器;对于谓词函数中含有输入变量的非线性函数的程序路径,采用线性规划、线性(混合)整数规划和最小二乘解法相结合的约束求解器。
The elip is suitable for the case that the uncontrollable subnet is cascade petri net and some cascade subnets are neither acyclic petri nets nor state graphs, and the main character is that the nonlinear integer program problem is converted into the problem that can be solved by using some standardized mathematical tools 当不可控子网是序状petri网,且无法用整数规划法综合控制器时,可使用扩展线性整数规划法,该方法的优点在于把非线性整数规划转化为可用标准数学工具求解的问题。
One is single node dba mixed integer programming ( sdmip ), the other is double node dba mixed integer programming ( ddmip ) . the result of dba model is used as a restraint in the reconfiguration model, which is one of the strong points of this paper . the purpose of this paper is to support the action of selecting address and allocate resource more efficiently 并把dea评价的结果作为一项约束代入到选址模型中,经过这样处理的模型具有特殊的优点,能够把顾客的服务满意度在模型中予以体现,同时还能够使资源在各配送中心之间重新分配,使资源的利用率得以提高。
One is single node dba mixed integer programming ( sdmip ), the other is double node dba mixed integer programming ( ddmip ) . the result of dba model is used as a restraint in the reconfiguration model, which is one of the strong points of this paper . the purpose of this paper is to support the action of selecting address and allocate resource more efficiently 并把dea评价的结果作为一项约束代入到选址模型中,经过这样处理的模型具有特殊的优点,能够把顾客的服务满意度在模型中予以体现,同时还能够使资源在各配送中心之间重新分配,使资源的利用率得以提高。