User profiles for Volker Roth
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The generalized LASSO
V Roth - IEEE transactions on neural networks, 2004 - ieeexplore.ieee.org
In the last few years, the support vector machine (SVM) method has motivated new interest
in kernel regression techniques. Although the SVM has been shown to exhibit excellent …
in kernel regression techniques. Although the SVM has been shown to exhibit excellent …
Nonlinear discriminant analysis using kernel functions
V Roth, V Steinhage - Advances in neural information …, 1999 - proceedings.neurips.cc
Fishers linear discriminant analysis (LDA) is a classical multivari (cid: 173) ate technique
both for dimension reduction and classification. The data vectors are transformed into a low …
both for dimension reduction and classification. The data vectors are transformed into a low …
Stability-based validation of clustering solutions
Data clustering describes a set of frequently employed techniques in exploratory data
analysis to extract “natural” group structure in data. Such groupings need to be validated to …
analysis to extract “natural” group structure in data. Such groupings need to be validated to …
The group-lasso for generalized linear models: uniqueness of solutions and efficient algorithms
The Group-Lasso method for finding important explanatory factors suffers from the potential
non-uniqueness of solutions and also from high computational costs. We formulate …
non-uniqueness of solutions and also from high computational costs. We formulate …
[HTML][HTML] Second messenger-mediated adjustment of bacterial swimming velocity
Bacteria swim by means of rotating flagella that are powered by ion influx through
membrane-spanning motor complexes. Escherichia coli and related species harness a …
membrane-spanning motor complexes. Escherichia coli and related species harness a …
A PIN-entry method resilient against shoulder surfing
V Roth, K Richter, R Freidinger - … of the 11th ACM conference on …, 2004 - dl.acm.org
Magnetic stripe cards are in common use for electronic payments and cash withdrawal.
Reported incidents document that criminals easily pickpocket cards or skim them by swiping …
Reported incidents document that criminals easily pickpocket cards or skim them by swiping …
Feature selection in clustering problems
V Roth, T Lange - Advances in neural information …, 2003 - proceedings.neurips.cc
A novel approach to combining clustering and feature selection is presented. It implements a
wrapper strategy for feature selection, in the sense that the features are directly selected by …
wrapper strategy for feature selection, in the sense that the features are directly selected by …
Beyond sparsity: Tree regularization of deep models for interpretability
The lack of interpretability remains a key barrier to the adoption of deep models in many
applications. In this work, we explicitly regularize deep models so human users might step …
applications. In this work, we explicitly regularize deep models so human users might step …
Challenges and opportunities in estimating viral genetic diversity from next-generation sequencing data
Many viruses, including the clinically relevant RNA viruses HIV (human immunodeficiency
virus) and HCV (hepatitis C virus), exist in large populations and display high genetic …
virus) and HCV (hepatitis C virus), exist in large populations and display high genetic …
Interferon-induced gene expression is a stronger predictor of treatment response than IL28B genotype in patients with hepatitis C
…, L Terracciano, A Papassotiropoulos, V Roth… - Gastroenterology, 2011 - Elsevier
BACKGROUND & AIMS: The host immune response during the chronic phase of hepatitis C
virus infection varies among individuals; some patients have a no interferon (IFN) response …
virus infection varies among individuals; some patients have a no interferon (IFN) response …