Results 31 to 40 of about 1,963,970 (223)

Nonsmooth Optimization Techniques for Semisupervised Classification [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2007
We apply nonsmooth optimization techniques to classification problems, with particular reference to the TSVM (Transductive Support Vector Machine) approach, where the considered decision function is nonconvex and nondifferentiable and then difficult to minimize.
Astorino A, FUDULI, Antonio
openaire   +3 more sources

One-Rank Linear Transformations and Fejer-Type Methods: An Overview

open access: yesMathematics
Subgradient methods are frequently used for optimization problems. However, subgradient techniques are characterized by slow convergence for minimizing ravine convex functions.
Volodymyr Semenov   +3 more
doaj   +1 more source

Piecewise linear classifiers based on nonsmooth optimization approaches

open access: yes, 2014
Nonsmooth optimization provides efficient algorithms for solving many machine learning problems. In particular, nonsmooth optimization approaches to supervised data classification problems lead to the design of very efficient algorithms for their ...
Ozturk, Gurkan   +13 more
core   +2 more sources

A New Approach for Generalized Partial Derivatives of Non-smooth Functions

open access: yesWalailak Journal of Science and Technology, 2014
In this paper, we define the functional optimization problems corresponding to multi-variable smooth functions, so that their optimal solutions are partial derivatives of these functions.
Hamid Reza ERFANIAN   +2 more
doaj   +1 more source

A nonsmooth, nonconvex model of optimal growth [PDF]

open access: yesJournal of Economic Theory, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Takashi Kamihigashi, Santanu Roy
openaire   +5 more sources

The Space Decomposition Theory for a Class of Semi-Infinite Maximum Eigenvalue Optimizations

open access: yesAbstract and Applied Analysis, 2014
We study optimization problems involving eigenvalues of symmetric matrices. We present a nonsmooth optimization technique for a class of nonsmooth functions which are semi-infinite maxima of eigenvalue functions.
Ming Huang   +3 more
doaj   +1 more source

A new smoothing modified three-term conjugate gradient method for l1 $l_{1}$-norm minimization problem

open access: yesJournal of Inequalities and Applications, 2018
We consider a kind of nonsmooth optimization problems with l1 $l_{1}$-norm minimization, which has many applications in compressed sensing, signal reconstruction, and the related engineering problems.
Shouqiang Du, Miao Chen
doaj   +1 more source

Weak Subdifferential in Nonsmooth Analysis and Optimization [PDF]

open access: yesJournal of Applied Mathematics, 2011
Some properties of the weak subdifferential are considered in this paper. By using the definition and properties of the weak subdifferential which are described in the papers (Azimov and Gasimov, 1999; Kasimbeyli and Mammadov, 2009; Kasimbeyli and Inceoglu, 2010), the author proves some theorems connecting weak subdifferential in nonsmooth and ...
Sahlar F. Meherrem, Refet Polat
openaire   +6 more sources

Topological Aspects of Nonsmooth Optimization [PDF]

open access: yes, 2011
This book deals with nonsmooth structures arising within the optimization setting. It considers four optimization problems, namely, mathematical programs with complementarity constraints, general semi-infinite programming problems, mathematical programs ...
Shikhman, Vladimir, Vladimir Shikhman
core   +1 more source

Comparative Assessment of Smooth and Non-Smooth Optimization Solvers in Hanso Software

open access: yes, 2021
Tor, Ali Hakan/0000-0003-3193-5004The aim of this study is to compare the performance of smooth and nonsmooth mization) software. The smooth optimization solver is the implementation of the Broyden-Fletcher-Goldfarb-Shanno (BFGS) method and the nonsmooth
Tor, Ali Hakan
core   +1 more source

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