查询词典 marginal distribution density function

It was related with the real time information about the rolling windows and the distance between the robot and the obstacle. And the normal distribution density function was selected to accomplish to the obstacle avoidance.

通过实时检测滚动窗口内的环境信息，结合移动机器人与障碍物之间的距离关系，利用正态密度函数改变机器人偏转角度，实现避障。

By the minimum risk Bayes decision theory, this paper develops a new way of image segmentation: establish the mathematics model of image segmentation; estimate the probability density of grey scales and figure out its math-expectation and square difference that accord with normal distribution and the loss function; and judge the every pixel dot in the image according to the minimum risk Bayes decision theory and determine whether it is of target or non-target images, thereby realizing the extraction of the target image.

依据最小风险贝叶斯决策理论，提出了一种基于最小风险贝叶斯决策的图像分割方法。首先建立图像分割的最小风险贝叶斯决策模型，对灰度级类条件概率密度估计出其符合正态分布的数学期望和方差以及损失函数，再依据最小风险贝叶斯决策理论对图像中的每一像素点进行目标图像和非目标图像的类别判断，从而实现目标图像的提取。

Three problems can be solved with Hidden Markov Model, they are matching, learning and decoding. In this thesis, we use HMM to develop a system to predict the stock price index. Specifically, we make Gauss distribution as our observation sequence density function.

本文应用隐马尔可夫模型中对于解码问题、学习问题、和识别问题的解决方案，构建包含三个状态的模型，对股票价格指数进行预测。

Considerating over-all performance of mag nets, it was concluded that the optimal amount of doped-Ga was 0.5wt%. The other was that the grains size distribution of grains was narrow and grain distributed homogeneously as to microstructure of magnets when the amount of doped-Ga was 1 .Owt%;(3 ) In the magnets, there existed not only Nd2Fei4-xGaxB, but also GaNd concerning the Ga-elment form. The GaNd increased the amount of liquid and had favorable function during sintering, so it made for the increase of magnets density and the form of the second phase is good for improving coercivity.

综合考虑磁体的性能，最终得出添加0.5wt％为最佳的Ga添加量；(2)对于Nd_(15)Fe_(78)B_7+Ga系永磁体，当Ga的添加量为1.0wt％时，得到颗粒粒度分布范围窄，颗粒分布较均匀的显微结构；(3)元素Ga在磁体中不但以Nd_2Fe_(14-x)Ga_xB形式存在，而且以GaNd的形式存在，在烧结的过程中，增加了液相的数量，起助烧结的作用，有利于磁体密度的提高，形成第二相有利于矫顽力的提高。

Firstly, Dempster-Shafer is developed by not only considering the certainty of the evidence, but also considering the average support of the evidence to different subsets in the assignment framework so that it can give more reliable combination result. Secondly, amplitude ratio feature and Euclid distance of the probability density distribution function in Pearson graph from different temporal SAR images are extracted to present change feathers in different scales. Finally, the improved Dempster-Shafer algorithm is applied to fuse the two different features to detect change information of SAR images.

首先通过综合考虑证据本身的确信度和证据对辨别框架中子集的平均支持度进行证据间的加权合成，改进证据理论对证据的合成，提高其可靠性；然后提取不同时相图像间的散射幅度的对比度和概率密度分布函数在皮尔逊图中的欧式距离，两种特征参数代表了像元级和区域级不同空间尺度下微波遥感图像中关于地表变化的信息；最后将改进的证据理论用于两特征之间的融合处理，得到地表的变化信息。

The corresponding coefficient of deviation mean Φp and transcendental probability P are evaluated under different skewness coefficient Cs by deducing Pearson Type Ⅲ probability density distribution function according to the requirement of Military Specification Airplane Strength and Rigidity.

本文按军用飞机强度和刚度规范中规定的要求，通过对皮尔逊Ⅲ型概率密度分布函数的推导，完成了在不同偏态系数Cs下的离均系数Φp和超越概率P的对应数值编程计算，并得到了相应的计算结果。

Using normal distribution transform probability model to represent a laser range scan.Not need features corresponded,but transform the discrete scan date to the piecewise continuous and differentiable probability density function,and using Newton's algorithm to optimize scan matching,so can build the 2D global map.

利用正态分布转换概率模型来表示激光扫描，不需利用特征对应，而是通过将扫描得到的离散数据点转换成分段连续可微的概率密度函数，并利用牛顿优化算法来进行扫描匹配，从而建立2维全局地图。

With increase of voltage, the distribution for larger droplets became narrow and the curve shape of probability density function became nearly symmetric.

随着电压的升高，大雾滴尺寸分布有所变窄，概率密度曲线趋近对称。

The simulation results demonstrate that there is locally favorable distribution in the probability density function of the basic random variables in bounded environment.

仿真结果表明，在有约束环境中该基本随机变量的概率密度分布显示出明显的局部偏好性。

The shape parameter of probability density distribution function is adjusted to match the characteristics of fMRI.

通过调节其概率密度分布函数的形状参数，实现与fMRI感兴趣信号的分布特性更好地匹配。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。