基于物品的协同过滤_修正的余弦类似度

from math import sqrt users3 = {"David": {"Imagine Dragons": 3, "Daft Punk": 5, "Lorde": 4, "Fall Out Boy": 1}, "Matt": {"Imagine Dragons": 3, "Daft Punk": 4,
相关文章
相关标签/搜索