基本算法

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。

It firstly presents a survey of basic concepts and knowledge. Then it analyses the representation effectiveness of Vector Space Model and factors influencing the classification performance.

本文主要从文本表示及分类算法两个角度展开了深入的研究，首先对文本分类的基本概念和知识进行了归纳，分析了目前最为流行的向量空间模型的表示效力以及它对于分类效果的影响因素。

This paper introduces the basic principle of pulse width modulation based on voltage space vectors and realization algorithm.

本文介绍了SVPWM的基本原理及其实现算法。

At first part of this paper author introduces the development of grid and Globus Project. The development and architecture about CDG are introduced at the second part. At the third part, LDAP and MDS-2 of Globus Toolkit2.4 are introduced in detail. How CDG information service and scheduler are implemented is explained at the fourth part of this paper. At fifth part, some testing data chart and viewdata graphics are showed with some conclusion. The sixth part, the last part of the paper, is the review of authors work and the prospect of future work.

本文第一部分介绍了网格的发展概况以及 Globus 项目，第二部分介绍了校园数据网格的一些基本情况以及整体设计，第三部分详细介绍了 LDAP 技术、Globus Toolkit 2.4 中的 MDS-2，第四部分详细介绍了 CDG 信息服务模块与任务调度模块的设计与实现，其中包含一个适用于 CDG 的任务调度算法的设计与证明，第五部分介绍了试验环境与模块测试，包括一些测试数据与结论，第六部分是工作总结以及对今后研究的展望。

Since the well-log data interpretation is a basic step of the joint inversion, the paper studied the inversion algorithms of two-type problems of lithology and reser voir parameters using well-log data by ANNs and examined the advantages and practi cality of the technique with a large amount of real data.

考虑到测井资料是联合反演中的基本的一步，本文研究了应用人工神经网络根据测井资料预测岩性和储层参数这两类问题的数据驱动的反演算法，并以大量的实际资料处理结果，证实了该方法的实用性和优越性。

A large scale manually annotated Chinese corpus and a number of well-conducted experiments were used to identify the following points of the hidden Markov model based part-of-speech tagging scheme for Chinese texts. The results are:① The Bigram model is better than the Trigram model in terms of the performance-cost ratio.② An annotated corpus of about 70000 words tokens would be sufficient for training the Bigram model, to produce system performance of about 93% tagging accuracy for ambiguous word tokens and 97% tagging accuracy for all word tokens in the texts.③ The Bigram model can be suited to different application domains quite well.

论文在经过人工分词和词类标注的大规模汉语语料库的支持下，通过一系列对比实验，对基于隐Markov模型的汉语词类自动标注算法进行了系统的考察，并得出结论：① Bigram模型的"性能价格比"较Trigram模型更令人满意；②以7万词次左右的标注语料库训练Bigram模型即已基本够用（此时，兼类词词类标注正确率及文本词类标注正确率分别可达93%和97%以上）；③ Bigram模型对不同领域具有一定的适应性。

Main tasks as following: First, the basic theory of Algorithm, the methods of realization of IIR digital filters and the availability of the limited word length are introduced in detail.

主要进行了以下研究：首先详细地介绍了无限冲击数字滤波器滤波算法的基本理论，以及数字滤波器的实现方法、有效字长效应的分析。

three base structures from the fabric structure, then analysis the picture of the textile, accorder the properties of the wave machine, get the data of stitch about how the three base structures arrangement.

论文第二章提出了针法提取算法：从编织物结构中抽象出三种基本结构，然后分析编织物纹理图片，根据编织机器属性特点，得到对应这三种结构的针法数据。

At first, the characteristic and the difficulty of shift process are discussed and the basic concept and structure of apish intelligent control are stated. Secondly, the model of shifting is given and the fluctuation of engine speed is advanced to evaluate engine control during shifting.

本章分析了AMT换档过程控制的特点和难点，提出采用仿人智能控制算法对AMT换档过程进行综合控制，并介绍了仿人智能控制的基本概念和结构，建立了换档过程数学模型，提出发动机转数波动量作为换档过程中发动机控制的评价指标。

Secondly, this paper introduces the basic concept, classification and classical algorithm ideas such as Apriori of association analysis.

接着介绍了关联分析的基本概念、分类及经典的Apriori(1)算法思想。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。