Matrix decomposition parallelization method based on graph calculation model
A matrix decomposition and graph calculation technology, applied in the field of recommendation systems, can solve problems such as suspended animation, huge messages, and crashes
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[0080] Example: such as figure 1 Shown is a rating file for a user team product, where the UID column represents the user, and the IID column represents the product. Score represents the rating of the product by the corresponding user. A 4*3 scoring matrix can be constructed from the scoring file, such as figure 2 shown. The resulting scoring matrix can be generated in the form of a bipartite graph, such as image 3 shown. image 3 A bipartite graph is generated according to the scoring matrix. Each vertex in the bipartite graph represents a user or a product, and the user's rating of the product is the attribute of the edge between the user vertex and the product vertex. Therefore, two learning optimization algorithms based on coordinated filtering and matrix decomposition can be realized in the form of bipartite graphs.
[0081] Such as Figure 4 As shown, the solid line represents the actual interaction, and the dotted line represents the sending of the message. It c...
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