查询词典 entropy

Principle of Maximum Entropy POME , the most important theorem of entropy , was interpreted .

概念与性质，对熵的最主要定理--最大熵原理进行了阐述。

Sequence of continuous selfmaps ; Topological entropy ; Preimage entropy

连续自映射序列；拓扑熵；原像熵

For positively expansive nonautonomous systems, two types of pointwise preimage entropies are equal, and the preimage branch entropy and the preimage relation entropy are e...

3证明了对正向可扩的连续自映射序列而言，两类点原像熵相等，原像分枝熵与原像关系熵也相等。

Chapter 5 gives a model based maximum entropy regularization reconstruction technique using the Burg entropy as the regularizer.

第五章中论述了使用Burg熵作为正则化函数的基于AR模型的最大熵重建方法。

Chapter 4 gives an iterative maximum entropy rcgularization reconstruction method using the generalized Shannon entropy as the regularizer.

第四章中论述了使用广义Shannon熵作为正则化函数的迭代最大熵重建方法。

In addition, with the use of the parameters such as entropy, cross entropy, mutual information, root mean square error and peak to peak signal to noise ratio, the performance of the fusion scheme is evaluated and analyzed.

此外，利用熵、交叉熵、互信息、均方根误差、峰值信噪比等参量，对该融合方法的融合性能进行了评价与分析。

One is local entropy difference image matching parallel algorithm based on LS MPP, and the other one is local entropy difference image blocking matching parallel algorithm which is designed and realized by strategy combined folding sum, overlay windows mapping, with recurrence calculation column sum and row sum.

一种是基于LS MPP的局部熵差图象匹配并行算法，另一种是综合运用折叠求和，叠加窗口映射，递推求列和与递推求行和策略设计并实现的局部熵差图象分块匹配并行算法。

Based on systematic analysis, nine seismometry parameters that response earthquakes well in North China are selected, which are seismic frequency, seismicity scale, mf-value, b-value, D-value,η-value, seismicity intensity entropy and seismicity time entropy. Using synthetic anomaly index method, we calculated their seismic anomaly index values separately and synthesized these values into a chronogenesis curve. After studying its short-term anomaly characteristics to earthquakes, the criterion index for M≥5.8 earthquakes in North China is obtained. The R-value test indicts that it has good prediction effect.

在系统分析并筛选出华北地区地震频度、地震活动标度、mf值、调制比、b值、D值、η值、地震活动强度熵和地震活动时间熵等映震较好的9项测震学参数基础上，应用综合异常指数方法，分别计算了它们各自的地震异常指数时序值，进而合成得到华北地区测震学综合异常指数时序曲线，通过研究其地震短期异常特征，给出了华北地区M≥5.8地震短期综合预测的判据指标，经R值评分检验表明，该指标具有较好的地震预测效能。

It is found that generally the hydrologic noises exhibit skew characteristics, so that it is reasonably to use skew probability distribution to describing the noise components, and the wavelet coefficient threshold obtained by optimal entropy criterion based on information entropy theory in the global optimum.

分析结果显示，水文序列中的噪声成分具有偏态特性，因此本文应用偏态分布线型对噪声成分进行描述更为合理，而且小波系数阈值优选熵准则所得的阈值是基于信息熵理论而确定的，因此是整体上最优值。

Fourthly, it discusses the spectral image loss-less compression by applying thecorrelation and the entropy of the spectral image sequence. It gives and analyses three expressions of imaging spectrometer images, and tells the change in correlation coefficient and entropy for different expressions. At last, it puts forward D2PCM de-correlation method to reduce the spatial and spectral redundancy. This method improves the compression ratio and the compression efficiency, being easy and fast in operation.

根据成像光谱图像的空间、谱间相关性和信息熵的特征，提出成像光谱图像序列的三种表示方法，分析了不同表示方法的相关系数和图像信息熵的变化，并研究出了成像光谱图像的无损压缩方法，即利用D~2PCM方法对光谱图像序列进行去相关处理，同时降低图像的空间和谱间冗余，在提高了无损压缩的压缩比和压缩效率的同时，算法具有简单快速的优点。

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％。