下载后可任意编辑目 录1 绪论..........................................................................................................................21.1 讨论背景及意义............................................................................................21.2 国内外讨论现状............................................................................................21.3 本文讨论内容................................................................................................32 相关技术简介..........................................................................................................42.1 网络爬虫定义................................................................................................42.2 R 语言简介.....................................................................................................42.3 Scrapy 框架....................................................................................................52.4 数据挖掘技术介绍........................................................................................52.4.1 日志挖掘..............................................................................................52.4.2 数据挖掘分析的过程..........................................................................62.5 Heritrix 简介...................................................................................................73 系统分析..................................................................................................................83.1 系统可行性分析............................................................................................83.2 功能需求分析................................................................................................83.3 系统流程分析................................................................................................93.4 性能需求........................................................................................................94 系统设计....