本实验采用朴素贝叶斯模型，对于每个用户曾经评分过的电影判断其性别。直观上来说，不同的电影对于不同性别的人吸引力不同，如男性更喜欢武侠剧、动作剧，而女性更喜欢爱情剧。因此这样建立模型是可以理解的。对每个训练数据组建立分布表。依据最大似然准则判断性别。对于年龄采用相似的方法进行判断。包括源程序和实验报告。(In this experiment, a naive Bayes model is used to determine the gender of each movie that the user has rated. Intuitively, different movies have different attractions for different genders, such as men who prefer martial arts and action shows, while women prefer romance. Thus, building models is understandable. Create a distribution table for each training data set. Gender determination based on maximum likelihood criterion. For age, a similar approach is used.)