Similarity measuring method improved through collaborative filtering recommendation algorithm
A collaborative filtering recommendation and similarity measurement technology, applied in computing, special data processing applications, instruments, etc.
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[0027] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0028] figure 1 It is a flow chart of the improved similarity measurement method in the collaborative filtering recommendation algorithm provided by the preferred embodiment of the present invention. Such as figure 1 As shown, the improved similarity measurement method in the collaborative filtering recommendation algorithm provided by the preferred embodiment of the present invention includes steps S1-S3.
[0029] Step S1: Create user set U={U 1 ,U 2 ,...,U n}In n user-to-item sets I={I 1 ,I 2 ,...,I m} in the scoring matrix R(n×m) of m items, with R a,i Indicates user U a For item I i rating, where U a ∈U,I i ∈I.
[0030] specifically, figure 2 It is a schematic diagram of user-item...
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