查询词典 quantization

The statistical property of the wavelet coefficients was analysed and the feasibility of the product lattice vector quantization algorithm based on cubic lattice applied for random variables of generalized Gauss distribution was proved.

分析了小波变换系数的统计特性，通过模拟实验论证了基於立方网格的Product LVQ算法对广义高斯分布随机变量的可行性。

Pyramidal lattice vector quantization has drawn extensive attention by its promising property recently. The coding method based on zerotree coding［1］ has made a great coup during the last few years.

近年来，金字塔格型矢量量化方法由于其本身的特点和性质引起了人们的广泛兴趣，而文献［1］介绍的基于零树的编码也获得了极大的成功。

In our study of data compression, an entire research is given to the problem of the index of lattice points in pyramidal lattice vector quantization ,and index algorithms are presented to index the Iattce points of some usually-used lattices,such as ZL, DL, E8 and A16so on.

我们在数据压缩课题研究中，对塔式网格矢量量化中格点的标号进行了探索，给出了常用的几种网络诸如ZL、DL、E8、A16等格点的标号算法。

The thesis also gives the estimated upper bounds of error decision probability. When the compressor is confined to be a lattice vector quantizer, a explicit mathematic equation for the rate of the performance convergence to the optimum is derived. On the other hand, Distortion Ratio Aproachs to the design of testing system on the basis of vector quantization are put forward, and methods for building the variable length decision tree as well as the fixed length one presented.

在算法方面，提出了失真比矢量量化检验器的设计方法以及可变长和固定码长分类判决树的生成算法；为了解决以矢量量化器为核心的处理系统运算量大，不易实时实现的问题，论文中引入了熵减的概念，在此基础上提出一种快速最近邻搜索编码方法，理论分析及实验结果均证实了这种算法的有效性。

A new method for indexing large amounts of points inhigh-dimensional space is proposed.The basic principle is as follows:uniformly partition the data space by Lattice vector quantization,store the lattice points by Inverted File,organize the inverted file by Trie tree,and fast access the inverted file by Trie parallel search algorithm.

本文提出一种新的高维空间中点数据的索引方法，其基本原理是用格矢量量化均匀划分数据空间、用倒排文件存储格点、用Trie树实现倒排文件的组织和存储、用Trie并行搜索算法实现倒排文件的快速访问。

LVQ? Lattice Vector Quantization?

点阵矢量量化

A kind of Vector Quantization measure which is based on the training set distortion has also been analyzed in this thesis.

另外，还分析了一类基于训练集失真的矢量量化码书性能的度量方法。

This thesis offers a fast encoding algorihm based on squared error measure for vector quantization and its VLSI architecture.

本文研究了基于平方误差测度的矢量量化快速编码算法及其VLSI结构。

In the objective Vector Quantization measure, we synthesize several commonly used criterions.

在客观性度量方法中，我们总结了常用的一些标准。

In DHMM-based speech recognition, vector quantization permits the measure to phonetic similarity among speech representations to be shared if the acoustic distance among them is below some given threshold.

在基于DHMM语音识别中，若语音帧声学特征间的距离测度在给定的范围内，矢量量化为这些语音帧共享相同的语音学相似测度提供了可能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。