文档介绍：万方数据
目录
中文摘要..........................................................................................................................I
Abstract..........................................................................................................................II
1 前言.............................................................................................................................1
研究背景和目的...................................................................................................1
研究的背景...................................................................................................1
研究的目的...................................................................................................1
国内外研究状况..................................................................................................2
国外研究状况...............................................................................................2
国内研究状况...............................................................................................3
简要评述.....................................................................................................7
技术路线和方法...................................................................................................7
技术路线......................................................................................................7
研究方法......................................................................................................8
研究的创新及不足...............................................................................................9
研究的创新点...............................................................................................9
研究的不足之处...........................................................................................9
2 基本概念界定和理论基础概述.................................................................................10
基