目录前言...................................................................................................................1第1章绪论.................................................................................................21.1研究背景.........................................................................................21.2研究意义.........................................................................................21.3研究现状.........................................................................................31.4本文工作概述.................................................................................3第2章相关介绍.........................................................................................52.1基于协同过滤的推荐.....................................................................52.2基于内容的推荐.............................................................................62.3相似度计算.....................................................................................72.3.1欧式距离相似度..........................................................................72.3.2余弦相似度..................................................................................72.3.3皮尔逊相关系数..........................................................................82.3.4Jaccard系数.................................................................................82.4线性回归模型.................................................................................82.5评价指标.......................................................................................10第3章数据的收集与处理.......................................................................123.1数据采集.......................................................................................123.1.1数据爬取....................................................................................123.1.2数据存储....................................................................................143.2数据处理.......................................................................................143.2.1评论分词....................................................................................153.2.2词向量表达................................................................................15第4章基于文本评论的评分预测...........................................................174.1主要任务.......................................................................................174.2评分预测模型...............................................................................184.2.1相关定义....................................................................................184.2.2模型建立....................................................................................194.3实验结果分析...............................................................................21第5章总结与展望...................................................................................235.1课题总结.......................................................................................235.2后续工作展望...............................................................................23参考文献.........................................................................................................25致谢....................................................
