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» A Computational Journey into Nonlinearity
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CORR
2010
Springer
136views Education» more  CORR 2010»
14 years 7 months ago
An Inverse Power Method for Nonlinear Eigenproblems with Applications in 1-Spectral Clustering and Sparse PCA
Many problems in machine learning and statistics can be formulated as (generalized) eigenproblems. In terms of the associated optimization problem, computing linear eigenvectors a...
Matthias Hein, Thomas Bühler
SIAMIS
2010
155views more  SIAMIS 2010»
14 years 4 months ago
Smoothing Nonlinear Conjugate Gradient Method for Image Restoration Using Nonsmooth Nonconvex Minimization
Image restoration problems are often converted into large-scale, nonsmooth and nonconvex optimization problems. Most existing minimization methods are not efficient for solving su...
Xiaojun Chen, Weijun Zhou
IPMI
2005
Springer
15 years 3 months ago
Diffeomorphic Nonlinear Transformations: A Local Parametric Approach for Image Registration
Many types of transformations are used to model deformations in medical image registration. While some focus on modeling local changes, some on continuity and invertibility, there ...
Ramkrishnan Narayanan, Jeffrey A. Fessler, Hyunjin...
SCALESPACE
2005
Springer
15 years 3 months ago
Stabilised Nonlinear Inverse Diffusion for Approximating Hyperbolic PDEs
Stabilised backward diffusion processes have shown their use for a number of image enhancement tasks. The goal of this paper is to show that they are also highly useful for designi...
Michael Breuß, Thomas Brox, Thomas Sonar, Jo...
ITC
2003
IEEE
148views Hardware» more  ITC 2003»
15 years 3 months ago
Linearity Testing of Precision Analog-to-Digital Converters Using Stationary Nonlinear Inputs
As the performance of Analog-to-Digital Converters continues to improve, it is becoming more challenging and costly to develop sufficiently fast and low-drift signal generators th...
Le Jin, Kumar L. Parthasarathy, Turker Kuyel, Dega...