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Open AccessJournal ArticleDOI

Choosing Multiple Parameters for Support Vector Machines

TLDR
The problem of automatically tuning multiple parameters for pattern recognition Support Vector Machines (SVMs) is considered by minimizing some estimates of the generalization error of SVMs using a gradient descent algorithm over the set of parameters.
Abstract
The problem of automatically tuning multiple parameters for pattern recognition Support Vector Machines (SVMs) is considered. This is done by minimizing some estimates of the generalization error of SVMs using a gradient descent algorithm over the set of parameters. Usual methods for choosing parameters, based on exhaustive search become intractable as soon as the number of parameters exceeds two. Some experimental results assess the feasibility of our approach for a large number of parameters (more than 100) and demonstrate an improvement of generalization performance.

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Citations
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Journal ArticleDOI

Dealing with high-dimensional class-imbalanced datasets: Embedded feature selection for SVM classification

TL;DR: This work proposes a novel feature selection approach designed to deal with two major issues in machine learning, namely class-imbalance and high dimensionality, and achieves the highest average predictive performance with the approach compared with the most well-known feature selection strategies.
Proceedings ArticleDOI

Short-term wind power prediction based on wavelet transform-support vector machine and statistic characteristics analysis

TL;DR: Based on the principles of wavelet transform and support vector machines (SVMs), as well as the characteristics of wind-turbine generation systems, two prediction methods are presented and discussed and the means of evaluating the prediction-algorithm precision are proposed.
Journal ArticleDOI

Fuzziness based sample categorization for classifier performance improvement

TL;DR: This paper demonstrates experimentally that samples with higher fuzziness outputted by the classifier mean a bigger risk of misclassification and proposes a fuzziness category based divide-and-conquer strategy which separates the high-fuzziness samples from the low fuzziness samples.
Journal ArticleDOI

ID-Score: A New Empirical Scoring Function Based on a Comprehensive Set of Descriptors Related to Protein–Ligand Interactions

TL;DR: The better performance of ID-Score enables it as a useful tool in assessing protein-ligand binding affinity in structure-based drug discovery as well as in lead optimization.
Dissertation

Gaussian Process Models for Robust Regression, Classification, and Reinforcement Learning

TL;DR: Gaussian process models constitute a class of probabilistic statistical models in which a Gaussian process is used to describe the Bayesian a priori uncertainty about a latent function, and it will be shown how this can be used to estimate value functions.
References
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Book

The Nature of Statistical Learning Theory

TL;DR: Setting of the learning problem consistency of learning processes bounds on the rate of convergence ofLearning processes controlling the generalization ability of learning process constructing learning algorithms what is important in learning theory?
Journal ArticleDOI

Support-Vector Networks

TL;DR: High generalization ability of support-vector networks utilizing polynomial input transformations is demonstrated and the performance of the support- vector network is compared to various classical learning algorithms that all took part in a benchmark study of Optical Character Recognition.

Statistical learning theory

TL;DR: Presenting a method for determining the necessary and sufficient conditions for consistency of learning process, the author covers function estimates from small data pools, applying these estimations to real-life problems, and much more.
Book

An Introduction to Support Vector Machines and Other Kernel-based Learning Methods

TL;DR: This is the first comprehensive introduction to Support Vector Machines (SVMs), a new generation learning system based on recent advances in statistical learning theory, and will guide practitioners to updated literature, new applications, and on-line software.
Journal ArticleDOI

Molecular classification of cancer: class discovery and class prediction by gene expression monitoring.

TL;DR: A generic approach to cancer classification based on gene expression monitoring by DNA microarrays is described and applied to human acute leukemias as a test case and suggests a general strategy for discovering and predicting cancer classes for other types of cancer, independent of previous biological knowledge.