Some systems are lack of data transformation ability , so data transformation algorithms are devised to transform data from source xml document to target ( 6 ) some operations of xml documents in data integration are defined 针对普通xml文档转换系统缺少数据抽取和转换过程，增加匹配后的数据抽取和数据转换功能，设计了相关的抽取和转换算法。 （ 6 ）定义了在数据集成中对xml文档的基本操作。
This thesis focuses on how to utilize the results of sat research in folms . a new algorithm to reduce the folms to sat is presented . its can utilize the efficient sat solvers more conveniently and the efficiency of conversion is improved 为了利用现有的高效sat工具，研究了如何将folms问题转换为sat问题来求解，提出了一个新的转换算法，它能更好的利用sat工具同时在转换效率上也有所提高。
The algorithms for conversion between relational schema and xml schema make enterprise easily to publish its product data information on internet / intranet , and provide a powerful technical support for advanced integration among enterprise heterogenous data sources 关系模式与xml相互转换算法使得企业能够方便地面向internet intranet发布数据，为企业异构数据源在更高层次上的集成提供了技术基础。
Based on the color vision theory and the knowledge of color space and its transformation , the algorithm to transform these color space is designed and the internet applications to process colors is developed with the programming language vc + + 6 . 0 本论文基于颜色视觉理论，利用颜色空间及其转换的数学知识，设计出几大颜色空间之间的转换算法，通过可视化编程工具visualc + + ，开发出色彩处理的应用软件。
Because trimedia dsp tm1300 has relative more complex hardware structure and parallel process mechanism , we described it ' s software development environment . then the software schedule and the reference key function of this algorithm were discussed 因为trimedia芯片有相对复杂的硬件结构和并行处理机制，我们对其软件开发环境进行了描述，接着叙述了码率转换算法核心部分的流程框图和算法中所用到的函数。
As a research trial for this thesis , we designed a real circuit based on cpld ( complex programmable logic device ) by vhdl ( very high speed integrated circuit hardware description l anguage ) for the hardware algorithm for euclidean distance transform with multilayer design method , called top - to - down 一down )的方法，设计了一个基于复杂可编程逻辑器件cpld ( co哪lexprogammablelogiedeviee )的基本电路，用以验证基于硬件的欧几里德距离转换算法的各项性能。
When working in color mode , the module pursues to do the color regress work based on polynomial color regress algorithm , which make the images captured standard in color and brightness . while working in gray mode , the module transforms the color images to the gray ones , base on an algorithm which presented in this paper . the name of it is adaptable gray converting algorithm the merging module is the kernel of our capturing system 当工作在彩色模式时,该模块利用基于多项式线性回归的算法进行彩色图像的颜色还原,使采集来的图像在色彩和亮度上回归到cie的标准色彩空间;工作在灰度模式时,该模块利用本文提出的一种基于方差极值的自适应灰度转换算法进行彩色图像转灰度操作,自动实现了彩色转灰度的过程中最大限度保留原有细节的目的。
It presents the arithmetic that is achieved by postorder traversing binary tree , which is built from aov diagraph , based on investigating the arithmetic of interchanging between the ladder diagram and instruction list , and the interpretation and execution of plc programming language . the whole software is developed in visual c + + ide with mfc and multi - threads mechanism . the software is well constructed and conforms to a standard of iec61131 在重点研究了编程软件中梯形图与指令表程序的转换算法以及指令解释执行的原理和方法的基础上,提出了由aov有向图建立二叉树、并对其进行后序遍历来实现梯形图程序与指令表程序转换的算法,并给出了算法在编程软件中的具体实现。
Based on a systematic discussion on the contents , characteristics and the up - to - now accomplishments of these three operations in cagd , we present our researches in three ways as follows : ( 1 ) efficient evaluation for parametric curves and surfaces based on generalized ball bases based on the generalization of mathematical model of surface lofting program in the consurf system , two generalized ball surfaces and the recursive algorithms for evaluating them are given . furthermore , the conversion algorithms from bezier form of a surface to these two generalized ball forms are presented 在系统地论述cagd中此三类运算的内容、特点、已有研究成果的基础上，就以下三方面给出了研究成果： ( 1 )基于广义ball基的参数曲线曲面快速求值以前英国航空公司consurf系统机身模线程序数学模型的推广为基础，定义了两类广义ball基曲面，给出了求值的递推算法，推导了b zier曲面到这两类曲面的转换算法
