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你好 关于itemBasedRecommender中findItemPairs组队方法 #3

@leoncheek

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@leoncheek

def findItemPairs(user_id,items_with_rating):
'''
对每个用户的打分item,组对
'''
for item1,item2 in combinations(items_with_rating,2):
return (item1[0],item2[0]),(item1[1],item2[1])

这里for循环下直接return得到的只有一对 combinations返回的剩余组对并没有返回。

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