Starting from Helmholtz's theorem, the uniqueness conditions of scalar field are obtained based on the fact that the scalar field can be regarded as a special example of vector field. 将标量场视为矢量场的一种特例,从亥姆霍兹定理出发导出标量场的唯一性条件。
With the concept of vector equality, if coordinates of starting point and terminal point are provided, both mold of vector and distance formula between two points can be worked out. 利用向量相等概念,只要已知起点、终点坐标即可求出向量的模,就可推证出两点间的距离公式;
Then, we prove that under some weaker assumptions, the homogeneous Stochastic models starting from a deterministic initial vector should go to collapse with probability one. 然后,我们证明:在较弱的条件下,从决定性的初始产综出发,齐次的随机模型必定走向崩溃。
Starting from the polarization matrix and propagation equation of the cross-spectral density matrix, a detailed study of the influence of hard-edge aperture on the spectral switch of polychromatic vector Gaussian-Schell model beams is performed. 从偏振矩阵和交叉谱密度传输公式出发,分析了硬边光阑对多色矢量高斯-谢尔模型光束轴上光谱开关的影响。
Starting from the frame of method based on learning sample, a hybrid learning scheme based on independent component analysis and support vector machine is proposed and used in face detection. 从基于样本学习的方法框架出发,该文提出了一种基于独立元分析和支持向量机的混合的学习方案,并用于人脸检测中。
Starting from vector refraction theorem, the design principle of transmitted laser beam through double-prism to perform microradian deviation is researched, and the testing problem of fine pointing and tracking in inter-satellite optical communications is solved. 基于矢量折射定理,研究了透射光束通过双棱镜实现微弧度量级偏转的设计原理,解决了星间激光通信精跟瞄检测的难题。
The primary principle of Markov chains forecasting is setting up the model that is used for forecasting the state of some time in the future by using the starting vector and the transferring probability. 运用马尔科夫预测法进行预测,主要原理就是建立马尔科夫预测模型,利用初始状态向量和状态转移概率矩阵来推知预测未来某一时期所处的状态。
Turbofan Engine Starting Characteristics Estimation Based on Support Vector Machines 基于支持向量机的涡扇发动机起动性能估算研究
Starting from the universal approximation theorem of multilayered feed forward neural networks, this paper proves that the finite time trajectory of nonlinear continuous time system with input can be approximated by the state vector of the output units of a class of recurrent neural networks. 本文从多层前馈神经网络的一般近似定理出发,证明了带有输入的非线性连续系统在有限时间段内的输出轨迹可以被一类反馈神经网络输出神经元的状态向量近似到任何程度。
Starting with the design thought, we use vector space models and BP neural networks as the way of intelligent text analysis, and put forward a system frame realizing intelligent network filtering. 接下来从设计思想入手,采用向量空间模型和BP神经网络算法作为文档智能分析的手段,提出了一个实现网络智能过滤的系统架构。
When synthesizing the reference voltage vector, select the vector which only includes P and O states as the starting vector, thus eliminate the vector shift problem when sector changes. 在参考电压矢量的合成时,选择只包含P、O状态的空间电压矢量作为起始矢量,解决了扇区切换时的矢量突变问题。
The paper presents a new starting algorithm based on comprehensive vector, which can pick the instantaneous currents of three phases simultaneously to form the amplitude of comprehensive vector and discriminate the fault according to the waveforms tendency of normal condition and fault. 本文提出一种基于综合矢量的新算法,利用同时刻的三相电流瞬时值构成综合矢量,根据正常与故障波形包络线的变化趋势来识别故障。
Starting from the basic radiation theory, the calculation formulae for ground irradiance of space scattered reflection target are derived. The calculation process for integration in the formulae with vector method is explained in detailed. 从基本辐射理论出发,推导了空间漫反射目标地面照度的计算公式,详细讲解了采用矢量法对该公式中的积分进行计算的过程。
A New High-Sensitivity Starting Element Based on Current Comprehensive Vector 基于电流综合矢量的高灵敏启动元件
Based on above study, this paper comes to the conclusions that with disturbance point's influence, to starting component which the operating value is a vector, the protection may false; 该文得到以下几点结论:对于动作量是相量的启动元件,由于干扰点的影响,可能使保护误启动;
Starting from the support vector domain model, the paper establishes SVD predictive models of chaos time series as well as chaos phase trace of non-linear map, based on Takens phase space delay reconstructing theory. 从支持向量域SVD(SupportVectorDomain)出发,根据Takens延时相空间重构思想,利用支持向量机非线性映射,建立了混沌时间序列和混沌非线性相轨迹运动的SVD预测模型。
Starting from the relationship between the angular velocity and linear velocity of movement vector in the 3D space, this paper focuses on computation of rotation minimizing frames based on previous research. 在前人工作的基础上,从三维空间中运动向量的角速度和线速度的关系出发,研究了适应型旋转最小标架和指向型旋转最小标架的计算。
Starting from the principle of support vector machine, the superiorities of it in short-term load forecasting are elaborated. 最后,本文在全面总结了支持向量机在短期负荷中的应用情况的基础上,从其原理出发,在本质上论述了支持向量机应用于短期负荷预测的优越性。
Through the study of historical documents at home and abroad, starting from the point of view of the general and summarized and detailed introduction to the historical development of the vector space. 本文通过对国内外历史文献资料的研究,从总体和概括的角度出发,对向量空间的历史发展进行了详细的介绍。
Starting with the axis vector, the attitude angle is derived. 从弹轴矢量出发,推导了姿态角的数学公式。
Covering algorithm starting from geometric point of view, mappes the vector of input sample to the sphere of high-dimensional space, and cover each type of sample with areas as little as possible through training to form classification network model. 覆盖算法从几何的角度出发,把输入的样本向量映射到高维的空间球面上,并通过训练以尽可能少的领域覆盖各个类别形成分类网络模型。
For the inter-frame motion estimation, a parallel algorithms for motion estimation based on full search is proposed, this algorithm set the starting point to 0, canceling the step of using the adjacent block motion vector to predict the starting point. 针对帧间运动估计环节,设计了一种基于全搜索的运动估计并行算法,该算法取消了利用邻块的运动矢量预测搜索起始点的环节,而是将搜索起始点设置为0提高并行粒度。