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Title: Bayesian approach to support vector machines
Authors: CHU WEI
Keywords: Bayesian Inference, Gaussian Processes, Support Vector Machines, Regression, Classification, Feature Selection
Issue Date: 22-Mar-2004
Citation: CHU WEI (2004-03-22). Bayesian approach to support vector machines. ScholarBank@NUS Repository.
Abstract: We develop Bayesian support vector machines for regression and classification. Due to the duality between reproducing kernel Hilbert space and stochastic processes, support vector machines can be integrated with stationary Gaussian processes in a probabilistic framework. We propose novel loss functions with the purpose of integrating Bayesian inference with support vector machines smoothly while preserving their individual merits, and then in this framework we apply popular Bayesian techniques to carry out model selection for support vector machines. The contributions of this work are two-fold: for classical support vector machines, we follow the standard Bayesian approach using the new loss function to implement model selection, by which it is convenient to tune large number of hyperparameters automatically; for standard Gaussian processes, we introduce sparseness into Bayesian computation through the new loss function which helps to reduce the computational burden and hence makes it possible to tackle large-scale data sets.
Appears in Collections:Ph.D Theses (Open)

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