查询词典 entropy

To solve that problem, the collocation preference statistic model based on relative conditional entropy is brought up in this paper to measure dependence between headword and co-occurrence words in context.

针对以往研究将搭配视为词项的简单并置，而没有考虑词项间的倾向性的问题，提出了一个基于相对条件熵的搭配倾向统计模型，衡量中心词对上下文同现词的依赖程度。

Using conditional entropy as the heuristic information, it does not compute the core attribute, attribute reduction starts from the condition attributes directly.

该算法利用条件熵度量属性的重要性，不计算条件属性的核，直接在条件属性的基础上约简。

To solve the problem, the collocation preference statistic model based on relative conditional entropy is brought up to measure the dependence between headword and co-occurrence words in context.

针对以往研究将搭配视为词项的简单并置，而没有考虑词项间的倾向性问题，提出了一个基于相对条件熵的搭配倾向统计模型，衡量中心词对上下文同现词的依赖程度。

This paper compares conditional entropy of entanglement and concurrence at the same condition,and the result shows that the curves of their evolvements are identical.

应用条件熵纠缠度研究了真空腔场中两全同二能级原子之间纯态和一类混合态纠缠的时间演化，比较了相同条件下两全同原子系统concurrence纠缠度的时间演化。

The stress field in a rubber is produced mainly by changing configurational entropy and the deformation of rubber is almost not related to its internal energy.

橡胶的应力主要是由构象熵引起，橡胶的内能几乎不依赖于橡胶的变形。

Rubber consists of a large number of molecular chains. The change of outside forces or temperatures leads to the rearrangement of configurational entropy in rubber.

橡胶类材料是一群长而柔顺链的集合体，由于外界的作用，这些链经历着构象的重排。

It is demonstrated that the configurational entropy difference of anisotropic biomolecules of different sizes dominates the complex partitioning of these molecules over the nanofilter array.

该系统利用不同大小的非各向同性粒子处在两个平面组成的狭小空间时转动自由度受限制程度的不同来实现带电粒子的分离。

In this thesis, I summarize and implement the up-to-date language models, such as N-Gram Language Model, Interpolation N-gram Language Model, Context-Free Grammar and Probabilistic Context-Free Grammar, and establish the run-length language model Character-level and word-level run-length language model are established on the base of the concept of limit entropy and discrete stable information source and by using maximum likelihood between character strings.

在充分研究和比较了中文和西文特点的基础上，提出了变长汉语语言模型。应用极限熵、离散平稳信源和字符串之间的最大似然度等概念和方法，建立了字一级的变长语言模型和词一级的变长语言模型。实验的结果显示这种语言模型不仅比Bigram具有更低的复杂度，而且包含了更长距离内的信息，运行时间也大大小于N-Gram。

And the effects of length of data N to the approximate entropy of chaotic system isalso analyzed.All these are accomplished by examining several time series produced by a surperposition of white noise and noise-free data.It uses the discrete system logistic map and continuous system Lorenz attractoras the examples.

以Logistic方程描述的离散系统和Lorenz方程描述的连续系统为例，采用白噪声和无噪声信号以不同的信噪比混迭而成数据的方法，分析了相同数据长度N，不同信噪比下，混沌系统近似熵的变化；相同信噪比，不同数据长度对系统近似熵的影响。

In this paper we investigate the dynamical properties of continuous mapson a class of hereditarily decomposable chainable continua and the structure ofthe inverse limit space using a piecewise monotone continuous map with zerotopological entropy on a finite graph as a single bonding map.

本文研究了一类遗传可分可链连续统上连续自映射的动力性质并且对有限图上逐段单调且具有零拓扑熵的连续自映射的逆极限空间的拓扑结构进行了较为细致的刻画。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。