查询词典 conditional entropy

I then show that a natural boundary condition of low initial entropy can be imposed on the universal wave function.

这么一个简单的道理是否能解释时间的箭头（即宇宙为什么开始于低熵状态）？

However, in physical situations the difference of entropy as perceived by two observers may be negligibly small.

但在物理学情形下两个观察者所感知的"熵"的差异小到可以忽略。

A simple entanglement measure for multipartite pure states is formulated based on the von Neumann entropy of a series of reduced density matrices.

本文推广了两态两体纯态系统的纠缠度量方法，即利用约化密度矩阵的von Neu-mann熵来度量纯态纠缠。

The quantum noiseless coding method is discussed with the quantum entropy theory, and the capacity of quantum channel.

运用量子熵理论，引入量子无噪声编码方法，并研究了量子信道中的信息容量问题。

Based on entropy theory, a nonhomogeneous Markov model is introduced to identify the donor sites.

根据信息熵的理论，我们对donor sites区域按照极大熵的原则建立了一阶非时齐马氏链。

Entropy is a concept of physics to describe nonreversible process.

中文摘要：城市的形成和发展是一个历史过程，如何评判城市是一个深刻的哲学命题。

Based on the traits of dyadic wavelet decomposition of signal and that of the distribution of wavelet image coefficients, PLVQ and ZR are conjoined by making use of D\-4 lattice. Firstly, Pyramidal lattice vector quantization is adopted to quantize wavelet image coefficients. Nonzero lattice vectors and zero lattice vectors are formed. Secondly, nonzero lattice vectors are dealt with by adopting complex entropy coding. Finally, in order to fix on the position of nonzero lattice vector effectively, that is, to deal with zero lattice vectors effectively, the concept of significant map is introduced into. The significant map is scanned two times from down to up and from up to down.

根据信号的二进小波分解特点和小波图象系数的分布特点，利用D\-4格将PLVQ和零树结合起来，提出了一种基于零树和金字塔格型矢量量化的小波图象编码方法，该方法首先采用金字塔格型矢量方法来量化小波图象系数，以得到非零格点和零格点；然后采用复合熵编码来处理非零格点；最后为了有效确定非零格点的位置，也就是为了有效地处理零格点，又引进了重要图的概念。

A novel method for multi-image registration is proposed,which is called the entropy of normalized mutual information vector.

提出了一种新的多幅图像配准方法，归一化互信息向量熵方法。

Let the combination of weighted grey relevancy analysis and fuzzy C-mean valued clustering algorithm be applied to the wear pattern evaluation system of diesel engine, taking the Bezdek criterion and the fuzzy entropy value as the measuring target to enhance the search ability in overall situation and determined the weighted exponent value m, the wear patterned fuzzy analysis model was established by means of the clustering centre and the normalized standard vector.

将加权灰色关联分析与模糊C-均值聚类(fuzzy center-means clustering)算法相结合应用到柴油机磨损模式评价体系中，以Bezdek准则和模糊熵值为度量指标加强全局搜索能力并确定了加权指数m值，通过聚类中心和归一化的标准向量建立了磨损模式的模糊分析模型。

In chapter 6, null system and sequence entropy pairs are investigated.

在第六章中，我们对null系统和序列熵对进行了研究。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。