Multiple Precision Computing and Interval Analysis for Scientific Computation 多精度计算和区间分析方法在科学计算中的应用
In this paper, we study the problem of computing minimum total dominating sets and minimum paired dominating sets of generalized interval graphs. 研究了广义区间图的最小全控制集和最小配对控制集的计算问题。
For small errors or uncertain but bounded parameters, the interval perturbation method was presented for computing complex interval eigenvalues of the generalized interval eigenvalue problem, and the required regions containing natural frequencies of structures may be obtained. 对于小的误差或有界不确定参数,所提出的求解实区间矩阵的广义特征值问题的区间摄动法可以给出满足工程要求的结构固有频率所在的区域。
We give the computing method of mean CRI ( Collision Resolution Interval) length. The closed form expression for mean CRI length can be obtained. 我们给出了关于平均碰撞分解区间(CRI)长度的计算方法,并对平均最大吞吐量进行了分析。
Once Approximate Method for Computing Population Proportion Binomial Confidence Interval 总体率可信区间计算的一次近似法及其特征
Objective To put forward the once approximate method for computing binomial confidence interval after present methods were evaluated and reviewed. 目的在对现有总体率可信区间计算方法优缺点进行评价的基础上,研究计算总体率可信区间的一次近似法。
According to the computing value we compare the site design flood and design reservoir inflow flood of different time interval. 根据计算成果对该库不同时段的坝址设计洪水值和入库设计洪水值进行比较分析。
An improvement of constituting Markov partition is proposed for calculating measure theoretic entropy by computing invariant distribution of nonlinear mapping instead assuming equal likelihood for all points over a interval; 构造计算测度熵(MetricEntropy)的马尔可夫划分(MarkovPartition)时,对于非线性映射采取等似然假设,影响精度。提出用计算映射的不变分布来进行改进;
Global optimization method for computing frequencies of structures with interval uncertain parameters 计算具有区间参数结构的固有频率的优化方法
In this paper we discuss some basic methods and problems about application of computing interval algebra network ( IA network) to coordination of the tasks and combat behaviors in the military MAS. 论述IA(区间代数)网络计算应用于军事MAS中的任务/战斗行为协调时的基本方法和应注意的问题。
For the same precision of simulation, the high order finite difference method has a higher computing efficiency, as its depth interval can be selected by 2 4 times of the depth interval of the low order difference method. 在相同精度下,高阶差分的空间横向间隔可取为低阶差分的2~4倍,有较高的计算效率;
The important step of computing the electric quantity of the real-time network losses is to sum subsection integrals of whole loss power component. Interval to sampling may be adjusted according to the needed precision. 实时网损电量计算的重要步骤是对全损耗功率分量分时段积分求和,采样间隔长短可调节以满足要求的精确度。
Based on the grey incidence degree theories, the computing method for the degree of interval number incidence is developed. The grey incidence analysis theory is extened from the real number sequence to the interval number sequence and the development of the grey incidence theories is promoted. 在此基础上,根据灰色关联度的理论,提出了区间数关联度的计算方法,从而把灰色关联分析理论由实数序列拓广到区间数序列;
Comparison of Four Methods of Computing Confidence Interval for Population Proportion 四种方法计算总体率可信区间的比较研究
On Model and Procedure for Computing Interval Probability of Failure of Probabilistic and Non-Probabilistic Hybrid Structural Systems 概率-非概率混合结构体系失效概率的区间分析
For solving the equation, the computing region is divided irregularly into triangular grids according to water depth, and discrete spectra values are calculated at each grid point in time interval △ t. 为了求解这一方程,将计算区域依水深不同划分为不规则的三角形元,计算每个格点上以△t为时间间隔的离散谱值。
Ray-Tracking Method of Computing Interval Velocities for VSP VSP资料求层速度的射线追踪折线法
The extension of interval mathematics is applied to the matrix perturbation formulae of linear equations, the perturbation method is obtained for computing the interval displacement cf interval linear equations. 将区间分析中的区间函数扩张与矩阵摄动法相结合,给出了具有区间参数结构系统的静力响应的摄动算法。
By computing the time frequency distribution of a segment of sleep EEG signals in Choi Williams method, the basic EEG patterns in each interval of the signals are recognized based on the characteristic of local spectrum, and the characteristic curves of the local spectrum are obtained. 使用Choi-Williams分布对一段睡眠脑电图(EEG)信号进行时频变换,利用局部频谱的特征估计各个时间间隔里的波形,并得到局部频谱的特征曲线。
We can select the appropriate method based on the actual situation during the risk analysis. In this study, considering the deficiency of being difficult to realize and slow in computing of Monte Carlo simulation method, a new method of VaR based on interval analysis is proposed. 进行风险分析时可根据实际情况选择适合的方法。本文针对传统方法的缺陷(方法实现程度较难,处理速度较慢),提出基于区间分析的VaR计算新方法。
The computing results show that the main factors affecting the flow regime are relative roughness, spatial wave number ( rough element interval) of wall rough curve and the Reynolds number. 计算结果表明,壁面相对粗糙度、壁面波数(或粗糙元间距)以及Re数是影响流动和摩擦阻力的三个主要因素。