Results 11 to 20 of about 10,474 (140)

Polyhedral conic kernel-like functions for SVMs

open access: yesTURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, 2019
In this study, we propose a new approach that can be used as a kernel-like function for support vector machines (SVMs) in order to get nonlinear classification surfaces. We combined polyhedral conic functions (PCFs) with the SVM method.
Gurkan Ozturk, Emre Çimen
semanticscholar   +2 more sources

A Binary Classification Approach Based On Support Vector Machines Via Polyhedral Conic Functions

open access: yesCelal Bayar Üniversitesi Fen Bilimleri Dergisi, 2016
A Binary Classification Approach Based On Support Vector Machines Via Polyhedral Conic Functions Classification is a frequently used technique of data mining. Binary classification is a type of classification that includes two classes. This problem has a
Nur Uylas Sati
semanticscholar   +4 more sources

A Binary Classification Algorithm Based on Polyhedral Conic Functions

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2015
Data classification is one of the main techniques of data mining. Different mathematical programming approaches of the data classification were presented in recent years.
Nur Uylaş Satı
doaj   +1 more source

Clustering based polyhedral conic functions algorithm in classification

open access: yesJournal of Industrial & Management Optimization, 2014
In this study, a new algorithm based on polyhedral conic functions (PCFs) is developed to solve multi-class supervised data classification problems. The $k$ PCFs are constructed for each class in order to separate it from the rest of the data set. The $k$-means algorithm is applied to find vertices of PCFs and then a linear programming model is solved ...
Gurkan Ozturk, Mehmet Tahir Ciftci
semanticscholar   +3 more sources

Effective Condition Number Bounds for Convex Regularization [PDF]

open access: yes, 2019
We derive bounds relating Renegar's condition number to quantities that govern the statistical performance of convex regularization in settings that include the $\ell_1$-analysis setting.
Amelunxen, Dennis   +2 more
core   +2 more sources

Integrity Constraints Revisited: From Exact to Approximate Implication [PDF]

open access: yes, 2019
Integrity constraints such as functional dependencies (FD), and multi-valued dependencies (MVD) are fundamental in database schema design. Likewise, probabilistic conditional independences (CI) are crucial for reasoning about multivariate probability ...
Kenig, Batya, Suciu, Dan
core   +2 more sources

Bad semidefinite programs: they all look the same [PDF]

open access: yes, 2017
Conic linear programs, among them semidefinite programs, often behave pathologically: the optimal values of the primal and dual programs may differ, and may not be attained. We present a novel analysis of these pathological behaviors.
Bauschke H.   +6 more
core   +3 more sources

Extended Formulations in Mixed-integer Convex Programming

open access: yes, 2016
We present a unifying framework for generating extended formulations for the polyhedral outer approximations used in algorithms for mixed-integer convex programming (MICP).
A Ahmadi   +19 more
core   +1 more source

On the Aubin property of a class of parameterized variational systems [PDF]

open access: yes, 2017
The paper deals with a new sharp criterion ensuring the Aubin property of solution maps to a class of parameterized variational systems. This class includes parameter-dependent variational inequalities with non-polyhedral constraint sets and also ...
Gfrerer, Helmut, Outrata, Jiří V
core   +3 more sources

Polyhedral approximation in mixed-integer convex optimization

open access: yes, 2017
Generalizing both mixed-integer linear optimization and convex optimization, mixed-integer convex optimization possesses broad modeling power but has seen relatively few advances in general-purpose solvers in recent years.
Bent, Russell   +3 more
core   +1 more source

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