【资源说明】 该项目是个人毕设项目源码,评审分达到95分,都经过严格调试,确保可以运行!放心下载使用。 该项目资源主要针对计算机、自动化等相关专业的学生或从业者下载使用,也可作为期末课程设计、课程大作业、毕业设计等。 具有较高的学习借鉴价值!基础能力强的可以在此基础上修改调整,以实现类似其他功能。 开发软件:Pycharm 开发环境: Python3.6 数据库:mysql5.6 本系统包含电影前端展示界面、电影评分板块、推荐算法的实现以及后端数据库的设 计.其中实现推荐算法是整个电影推荐系统的核心.系统采用由grouplens项目组从美国著名 电影网站movielens整理的ml-latest-small数据集,该数据集包含了671个用户对9000多部电 影的10万条评分数据.首先将该数据集包含的全部文件经过筛选重组之后存储到建好的数 据库中,并将数据集按一定比例划分为训练集和测试集,对训练集进行算法分析生成Top-N 个性化电影推荐列表,然后在测试集上对算法进行评测,至少包括准确率和召回率两种评 测指标. 协同过滤算法是推荐领域最出名也是应用最广泛的推荐算法.所以系统拟采用两种协 同过滤算法给出两种不同的推荐结果,一种是基于用户的协同过滤算法,另一种是基于物 品的协同过滤算法,用户可以根据两种推荐结果更加合理的选择合适的电影.系统采用了 改进之后的ItemCF-IUF和UserCF-IIF算法,对计算用户相似度和物品相似度的计算都做出 了改进.最后通过计算两种算法的准确率(Precision)、召回率(Recall)和流行度从而对系 统进行评测、并比较了两种算法各自的优势和劣势.实验证明,改进后的算法比原始的协 同过滤算法推荐效果要好,准确率更高. 整个系统涉及到的编程语言包含Python、Html5、JQuery、CSS3以及MySQL数据库编 程.用到的框架是Flask重量级web框架,通过该框架连接系统的前、后端.用户首先需要 填写用户名、密码以及邮箱注册系统,然后才能登陆推荐系统.进入首页后会看到8个电影 分类,包括恐怖片、动作片、剧情片等.用户需要给自己看过的电影进行评分,评分起止 为0.5-5.0分,共10个分段.每评价一部电影就要点击一下提交按钮,将所评分的电影的 imdbId号以及对应的评分存入数据库中.用户点击“推荐结果”按钮,系统就调用推荐算法 遍历数据库所存数据,得出推荐列表之后将结果反馈给浏览器,同时调取数据库所存电影 海报图片进行展示.用户点击自己登陆的昵称,会跳转页面显示自己已经评价过的电影.
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