1) transformation of weighted matrix
权函数变换
1.
Using christofides heuristics of △TSP and it′s extension to K TSP, We give an effective method to solve K TSP by a transformation of weighted matrix (c ′ ij =c ij -u i-v j, c ′ ij ≥0, c ′ ik +c ′ kj ≥c ′ ij , k≠i, j) and get a well estimation of bounds of objective function C(H a)≤λ(n)C(H *)-(λ(n)-1){(k-1)· c 11 + ni=1c ii }.
利用△TSP问题的Christofides算法及其在K TSP问题上的扩展 ,通过权函数变换c′ij=cij-ui-vj 使c′ij>0 ,c′ik+c′kj≥c′ij,给出了求解K TSP问题的有效途径 ,得到了目标函数的更好的界值估计 ,C(Ha)≤λ(n)C(H ) -(λ(n) -1 ) {(k-1 )c11+∑ni=1 cii}。
2) dynamic weighted function
变权函数
3) transformation function
变换函数
1.
This paper shows that errors in the failure probability also come from curvatures in transformation functions from nine non-Gaussian distributions ,a.
本文通过研究9种非正态分布类型的正态概率变换函数的曲率值,得出了不同非正态分布类型对一次可靠度方法计算精度的影响规律。
2.
By analyzing the Euclidean distance function and its extension, the conception of the similarity in time series describing the relationship of similarity with a uniform similarity function and transformation function was proposed.
在这种概念体系中 ,相似性只能是某种相似性函数和变换函数约束下的相似 ,客观的相似性结果依赖于相似性函数和变换函数的主观选取 。
3.
Methods The function transformation theory,grey system modeling theory and genetic algorithm were used to calculate the parameters of transformation functions.
方法应用函数变换理论和灰色系统建模理论,同时运用遗传算法计算变换函数中的参数。
4) function transformation
函数变换
1.
Starting from the basic principle of memory,we carry out the theoretical studies according to the sampling theory,summarize out the functions of function transformation of the memory,put forward the idea of using the DDS method to design the function generator.
从存储器的基本工作原理出发 ,依据采样定理 ,在理论上对存储器进行了研究 ,总结出存储器具有的函数变换的功能 ,提出了采用DDS方法设计函数发生器的思想 ,在此基础上给出了用EPROM构成的可编程多种模拟连续函数发生器的应用实例 。
2.
Based on the auxiliary equation method,a method of auxiliary equation of elliptic function combined with function transformation is proposed.
在辅助方程法的基础上给出第一种椭圆辅助方程和函数变换相结合的一种方法,并借助符号计算系统Mathematica构造了带强迫项变系数组合KdV方程的类Jacobi椭圆函数精确解以及退化后的类孤子解和三角函数解。
3.
Some travelling wave solutions to the Noyes-Fied equations and Burgers-KdV equation are obtained by using function transformations.
通过函数变换,得到了Noyes-Field方程组及Burgers-KdV方程的行波解,求解的基本思路是把非线性偏微分方程组化为代数方程组求解,所用方法具有广泛的实用性。
5) transfer function
变换函数
1.
Analytical expressions for the three-dimensional transfer functions for both the reflection and transmission cases are presented and the imaging that can occur if the detector is offset is discussed.
本文研究了扫描共轭显微镜的探测位置稍微偏离光轴时显微镜三维变换函数的变化 ,以及对显微镜成像效果的影响。
6) function transform
函数变换
1.
A method for calibrating nonlinearity of platinum resistance transducers based on function transform principal is presented.
提出了一种基于函数变换原理的铂电阻传感器非线性校正方法。
2.
After analyzing the main cause of generating nonuniformity and traditional correction ways, a real time new method which makes use of function transform of semiconductor memory to correct nonuniformity of IRFPA was presented.
分析了影响均匀性的主要因素和传统的校正方法 ,提出了利用半导体存储器的函数变换功能对红外焦平面阵列的非均匀性进行校正存储的实时校正新方法 。
3.
A modified double Jacobian elliptic function expansion method under a general function transform, which is more general than the Jacobian elliptic function expansion method under a travelling wave transform, is proposed to construct the exact solutions of nonlinear evolution equations.
将行波变换下修正的双Jacobi椭圆函数展开法推广到范围广泛的一般函数变换下进行。
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