Electronic commerce recommending method based on support vector machine (SVM)
A technology of support vector machine and recommendation method, applied in marketing and other directions, can solve the problem of low recommendation quality, and achieve the effect of solving the problem of sparsity and the best prediction and scoring effect
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[0030] The present invention further describes the specific implementation through the accompanying drawings
[0031] Establish a vector model of SVM, extract the user information of the user and the evaluation information of the user for a specific commodity according to the vector model of the SVM, evaluate, predict and fill in unevaluated or invalid evaluation data according to past experience.
[0032] Step 1. Extract sample set {x i , y i}, x represents product evaluation, i=1, …, n, n is the total number of samples. Using nonlinear mapping to a high-dimensional space, the resulting optimal regression function , w is the weight vector, b is a constant, x i Vectorize for product reviews ( x i1 , x i2 ,…, x in ).
[0033] Step 2: Optimizing the target and solving the optimal classification plane, that is, for each product evaluation vector, finding the minimum distance between each point and the classification plane. is the function fitting accuracy, As ...
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