目录
1）Problem formulation
2）Content-based recommendations
3）Collaborative filtering
4）Collaborative filtering algorithm
5）Vectorization: Low rank matrix factorization
6）Implementational detail: Mean normalization
1）Problem formulation
推荐电影评分：
2）Content-based recommendations
对于每部电影构造特征向量，使用线性回归算法进行预测评分：
特征化：
3）Collaborative filtering
4）Collaborative filtering algorithm
5）Vectorization: Low rank matrix factorization
6）Implementational detail: Mean normalization
