Fast structural SVM text classification optimization algorithm
A technology of support vector machine and text classification, applied in the field of fast structured support vector machine text classification optimization algorithm, can solve the problems of ignorance, complex model, poor performance, etc., to achieve the effect of improving classification accuracy and improving classification performance
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[0054] Such as figure 1 As shown, a fast structured support vector machine text classification optimization algorithm includes the following steps:
[0055] S1: Extend the objective function of the structured support vector machine to obtain the dual form of the structured support vector machine;
[0056] S2: Use the obtained dual form to optimize the objective function of the structured support vector machine through the coordinate ascent method.
[0057] In text classification, the implementation of SVM (Support Vector Machine) is the process of finding the largest hyperplane in the data set, which is analyzed for linearly separable cases. For the case of linear inseparability, the linearly inseparable samples of the low-dimensional input space are converted into high-dimensional feature spaces by using nonlinear mapping algorithms to make them linearly separable, so that the high-dimensional feature spaces use linear algorithms to linearize the nonlinear features of sampl...
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