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Multiple Kernel Learning for Efficient Conformal Predictions

Multiple Kernel Learning for Efficient Conformal Predictions

This video was recorded at NIPS Workshops, Whistler 2010. The Conformal Predictions framework is a recent development in machine learning to associate reliable measures of confidence with results in classification and regression. This framework is founded on the principles of algorithmic randomness (Kolmogorov complexity), transductive inference and hypothesis testing. While the formulation of the framework guarantees validity, the efficiency of the framework depends greatly on the choice of the classifier and appropriate kernel functions or parameters. While this framework has extensive potential to be useful in several applications, the lack of efficiency can limit its usability. In this paper, we propose a novel Multiple Kernel Learning (MKL) methodology to maximize efficiency in the CP framework. This method is validated using the k-Nearest Neighbors classifier on a cardiac patient dataset, and our results show promise in using MKL to obtain efficient conformal predictors that can be practically useful.


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