查询词典 entropy

The approach, based on the physical model of terrain contour matching, defines a probability vector to describe the local terrain uniqueness and thus provides a way to measure terrain uniqueness via entropy.

该方法从地形匹配的物理模型出发，定义了描述局部地形独特性的一个概率向量，在此基础上，给出了地形独特性的熵度量方法。

Predictive lossless coding chooses and applies one of multiple available differential pulse-code modulation modes to individual macro-blocks to produce DPCM residuals having a closer to optimal distribution for run-length, Golomb Rice RLGR entropy encoding.

预测无损编码选择多种可用差分脉冲码调制模式之一并将其应用于每个独立宏块，以产生具有更接近于游程长度Golomb Rice RLGR熵编码的最优分布的DPCM残差。

The proposition of safety entropy and its quantification are especially important in discussion of operational mechanism of safety system.

安全熵的提出及其量化，对安全系统运行机制的探讨是至关重要的。

The experimental result shows that the local entropy feature has the minimal quantization error, but its clustering accuracy is lower.

原始图像作为输入特征时，有着较高的聚类准确度及拓扑保持度。

The motionless backgroup situation usually happens at the video camera parked to opposite quiescent condition , the first wipe off yawp by using pretreatment method,the second using the method of difference Statistic in two frame to analyse and compute background , Above this base to utilize the resumeed background and present frame message detect movement target and it"s movement track ; In dynamic backgroup movement image,it is very difficult to exactly compute ground since the background is varied complexly , the article research the optical flow model、 background model、 moving object detection based on entropy,and depart target from background in movement picture , detect moving target and plain it"s track.

静止背景的情况通常发生在摄像机相对静止状态，首先用预处理的方法去除噪声，其次采用帧间差分统计的方法进行分析计算背景，在此基础之上利用恢复的背景及当前帧的信息检测运动目标及其运动轨迹；对于动态背景的运动图像，由于背景是不断变化且呈现出复杂的特征，因此很难准确求出静止背景，本文在光流矢量场和配准方法的基础上探讨研究了光流模型、背景模型和基于熵的方法，在动态图像上分离不同的目标与背景，直接检测出运动目标并画出相应的轨迹。针对运动图像的复杂性，本文提出了构建模型知识库的设想。

In decision tree algorithm,the famous one is ID3 algorithm,which was presented by Quinlan in 1986.It is not an algorithm increasing by degrees,and it uses information entropy as a standard to select attribute.

在决策树算法中属Quinlan于1986年提出的ID3算法最有名，它是非递增算法，并且采用信息熵作为属性选择的标准。

The notion of sample relative entropy , as a random measure of the deviation of a sequence of nonnegative continuous random sequence from independent random sequence with exponential distribution, is introduced.

利用样本相对熵作为一般非负连续型随机变量序列相对于服从指数分布的独立但不同分布随机变量序列偏差的一种随机性度量，运用鞅理论及分析方法，研究了一类随机变量序列加权和的用不等式表示的极限定理，即强偏差定

Appropriate data compression methods are needed to assure the random nature of theinformation source and to enlarge its entropy.

它避免了使用m 序列等伪随机码发生器，保证了扩频序列的随机性、动态可变性和信号的低截获率。扩频信号的解扩需要在接收端产生本地扩频序列。

in information theory, entropy is a measure of the uncertainty associated with a random variable.

信息熵是信息论中用于度量随机变量的不确定性。

The thinking of this method as follows:Firstly,using single evaluation methods to evaluate.If the evaluation results aren\'t same,the Spearman rank correlation coefficient is used to calculate the correlation among the results of single evaluation methods.Based on the results,the traditional combined evaluation methods are used to combine the results of the single evaluation method.If the results of the upper combined methods are not same. Here the combined method evaluation indexes,such as Spearman rank correlation coefficient,correlation degree,the max deviation,average deviation,are used to evaluate the upper four combined evaluation methods.The entropy method is used to calculate the weights,and then get the final evaluation result.

首先，采用单一综合评价方法进行评价，对于不一致的评价结果，通过Spearman等级相关系数验证各单一评价方法间是否具有相关性；(来源：4dbdABbbC论文网www.abclunwen.com)对存在相关性的单一评价方法采用组合评价法对其结果进行组合，若所得评价结果仍不一致，采用Spearman等级相关系数、关联度、最大偏差、平均偏差对组合评价方法的组合效果进行评价，最后运用熵权法对上述组合评价进一步组合得到最终评价结果。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。