Results 41 to 50 of about 442,995 (188)

Smoothing Approximation to the Square-Order Exact Penalty Functions for Constrained Optimization

open access: yesJournal of Applied Mathematics, 2013
A method is proposed to smooth the square-order exact penalty function for inequality constrained optimization. It is shown that, under some conditions, an approximately optimal solution of the original problem can be obtained by searching an ...
Shujun Lian, Jinli Han
doaj   +1 more source

A novel two-point gradient method for Regularization of inverse problems in Banach spaces

open access: yes, 2021
In this paper, we introduce a novel two-point gradient method for solving the ill-posed problems in Banach spaces and study its convergence analysis. The method is based on the well known iteratively regularized Landweber iteration method together with ...
Giri, Ankik Kumar, Mittal, Gaurav
core  

Group Lasso estimation of high-dimensional covariance matrices [PDF]

open access: yes, 2010
In this paper, we consider the Group Lasso estimator of the covariance matrix of a stochastic process corrupted by an additive noise. We propose to estimate the covariance matrix in a high-dimensional setting under the assumption that the process has a ...
Alvarez, Lilian Muniz   +3 more
core   +2 more sources

Variable Selection and Parameter Estimation with the Atan Regularization Method

open access: yesJournal of Probability and Statistics, 2016
Variable selection is fundamental to high-dimensional statistical modeling. Many variable selection techniques may be implemented by penalized least squares using various penalty functions.
Yanxin Wang, Li Zhu
doaj   +1 more source

Conflict Relaxation of Activation-Based Regularization for Neural Network

open access: yesIEEE Access, 2018
Neural networks often penalize their loss functions by a regularization or constraint term dependent on training data. These penalty terms are defined on activation values of hidden vectors and reduced with a loss in the training process.
Kangil Kim   +3 more
doaj   +1 more source

Design of Optimal Sparse Feedback Gains via the Alternating Direction Method of Multipliers

open access: yes, 2013
We design sparse and block sparse feedback gains that minimize the variance amplification (i.e., the $H_2$ norm) of distributed systems. Our approach consists of two steps.
Fardad, Makan   +2 more
core   +1 more source

OPERATIVE CORRECTION OF ARRIVAL AND DEPARTURE FLOW OF AEIRCRAFT AT THE AERODROME

open access: yesНаучный вестник МГТУ ГА, 2016
The problem of optimal correction of the scheduled time of take-off and landing aircraft using a single runway (RW), in conditions of high air traffic intensity at which the probability of a conflict between the takeoff and landing reaches a critical ...
G. N. Lebedev, V. B. Malygin
doaj  

INSTYTUCJA MEDIACJI KARNEJ W PRAWIE POLSKIM

open access: yesZeszyty Prawnicze, 2016
THE INSTITUTION OF PENALTY MEDIATION IN POLISH LAW Summary The institution of penalty mediation is underestimated form of resolving disputes. Mediation is a agreement between parties in the presence of mediator. This article presents main functions of
Karol Pachnik
doaj   +1 more source

Constrained shuffled complex evolution algorithm and its application in the automatic calibration of Xinanjiang model

open access: yesFrontiers in Earth Science, 2023
The Shuffled Complex Evolution—University of Arizona (SCE-UA) is a classical algorithm in the field of hydrology and water resources, but it cannot solve constrained optimization problems directly. Using penalty functions has been the preferred method to
Chenkai Jiang   +3 more
doaj   +1 more source

Multiportfolio time consistency for set-valued convex and coherent risk measures

open access: yes, 2014
Equivalent characterizations of multiportfolio time consistency are deduced for closed convex and coherent set-valued risk measures on $L^p(\Omega,\mathcal F, P; R^d)$ with image space in the power set of $L^p(\Omega,\mathcal F_t,P;R^d)$.
Feinstein, Zachary, Rudloff, Birgit
core   +1 more source

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