查询词典 paper matrix

Getting out the Eigen values and eigenvectors of the series covariance matrix by the Jacobi algorithm in C language also is discussed in this paper.

本文使用C语言，利用雅可比算法，编写出可快速求出数据因子分析中所要求的矩阵特征值和特征向量的程序。

Rotation matrix s representation with the unit quaternion has no singular points, so the unit quaternion-based estimation method is of more practical importance, and the algorithm in this paper does not need iteration computation compared to those unit quaternion-based method proposed by Horn(1987) and Su, et al.

单位四元数表示旋转矩阵时不存在奇异点，故基于单位四元数的运动估计方法具有更大的实用价值，而本文算法无需Horn(1987)和Su等人(1989)提出的单位四元数方法的迭代运算。

Using the method of unit matrix synthesis to solve the coupling problem between the paper pulp flux and the steam press in the papermaking process.

运用单位矩阵解耦控制方法，解决造纸过程中纸机网前箱系统中纸浆流量和蒸汽压力的耦合问题；并在实验室的纸机网前箱的模型中予以实际应用，实验结果表明：该解耦控制算法是可行的，有一定实用价值。

The matrix model of the network and the experiment results are also presented in this paper.

给出了此网络模型的矩阵描述和实验结果。

In this paper, a new digital watermarking algorithm based on eigenvalues of matrix is proposed.

本文提出了一种基于特征值的数字水印算法。

This paper focuses on the study of the most popular FAST-MCD method which is improved to overcome its shortcoming, constructs robust mean vector and robust covariance matrix which is applied in PCA method.

本文对目前较流行的FAST-MCD方法的算法进行研究，构造了稳健的均值向量和稳健的协方差矩阵，应用到主成分分析中，并针对其不足之处提出改进方法。

Association rules mining is a very active field in data mining and there are many algorithms today. In this field, the most classical algorithm is Apriori put forward by Agrawal et. al and it is used widely. The paper analyzes the advantages an disadvantages of Apriori, AprioriTid and AprioriHybrid algorithm in mining association rules. To solve the bottle of AprioriHybrid algorithm, a Support-Matrix method to rapidly verify the 2-frequent itemsets is put forward. To accelerate the speed of verify the k-frequent itemsets, a simple and highly efficient method of minimizing the trade database is given. All these two methods improve the efficiency of AprioriHybrid method.

关联规则挖掘是数据挖掘中一个非常活跃的领域，当前有许多种算法，最经典并被广泛使用的是Agrawal等人提出的Apriori算法及其衍生算法，本文分析了Apriori，AprioriTid和AprioriHybrid算法的优缺点，针对AprioriHybrid算法的瓶颈提出一种使用支持度矩阵对频繁2项集快速验证的方法，并给出一种简单易行，而又高效的逐步缩减交易数据库的方法，加快对候选频繁k项集的验证速度，从而提高了AprioriHybrid算法的效率。

According to the state equation of dynamic system,the paper puts forward the calculating method of attenuation function of vibration mode by making use of system matrix.

根据运动系统的状态方程，利用系统矩阵得出了振型衰减函数的计算方法，并用衰减函数分析了刚度变化对高振型的影响，从而对地震作用计算中振型数目选取提出了几点有益的建议。

The main content of this paper is to research dynamic behavior and stability of nonlinear rotorbearing system, study the numerical methods that is used to this kind of system, solve oil film forces and its Jacobian matrix at any moment, in order to offer basis for project design.

本文主要研究非线性转子—轴承系统的动力学行为和稳定性，研究用于该类系统非线性动力特性的数值方法，求解任一时刻轴承油膜力及其雅可比矩阵，为工程设计提供依据。

The monochrome display is designed with the 40-pin AT89S51 MCU produced by the American ATMEL company as the core. This paper introduces its control system for electronic display LED dot matrix and monitor dynamic design and the development process.

所设计的单色显示屏是以美国ATMEL公司生产的40脚单片机AT89S51为核心，介绍了以它为控制系统的LED点阵电子显示屏的动态设计和开发过程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。