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Restricted dissimilarity functions and penalty functions [PDF]

open access: yesProceedings of the 7th conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011), 2011
In this work we introduce the definition of restricted dissimilarity functions and we link it with some other notions, such as metrics. In particular, we also show how restricted dissimilarity functions can be used to build penalty functions.
Gleb Beliakov   +4 more
openaire   +3 more sources

On two recent nonconvex penalties for regularization in machine learning

open access: yesResults in Applied Mathematics, 2022
Regularization methods are often employed to reduce overfitting of machine learning models. Nonconvex penalty functions are often considered for regularization because of their near-unbiasedness properties.
Sujit Vettam, Majnu John
doaj   +1 more source

Explicit Size-Reduction of Circularly Polarized Antennas Through Constrained Optimization With Penalty Factor Adjustment

open access: yesIEEE Access, 2021
Modern communication systems of high data capacity incorporate circular polarization (CP) as the preferred antenna radiation field configuration. In many applications, integration of the system circuitry with antennas imposes size limitations on CP ...
Marzieh Mahrokh, Slawomir Koziel
doaj   +1 more source

On Shor's r-Algorithm for Problems with Constraints

open access: yesКібернетика та комп'ютерні технології, 2023
Introduction. Nonsmooth optimization problems arise in a wide range of applications, including engineering, finance, and deep learning, where activation functions often have discontinuous derivatives, such as ReLU.
Vladimir Norkin, Anton Kozyriev
doaj   +1 more source

Optimal Investment of Merton Model for Multiple Investors with Frictions

open access: yesMathematics, 2023
We investigate the classical optimal investment problem of the Merton model in a discrete time with market friction due to loss of wealth in trading. We consider the case of a finite number of investors, with the friction for each investor represented by
Souhail Chebbi, Senda Ounaies
doaj   +1 more source

Multi-Period Optimal Reactive Power Dispatch Using a Mean-Variance Mapping Optimization Algorithm

open access: yesComputers, 2022
Optimal reactive power dispatch plays a key role in the safe operation of electric power systems. It consists of the optimal management of the reactive power sources within the system, usually with the aim of reducing system power losses.
Daniel C. Londoño Tamayo   +2 more
doaj   +1 more source

Near Feasibility Driven Adaptive Penalty Functions Embedded MOEA/D

open access: yesIEEE Access, 2023
This work extends a near feasibility threshold (NFT) based adaptive penalty function for constrained multiobjective optimization. The NFT zone adjoining the feasible region is considered as good one, where infeasible solutions are relatively less ...
Akhtar Munir Khan   +6 more
doaj   +1 more source

Logical Consequence Operators and Etatism

open access: yesStudia Humana, 2020
In the paper, there is presented the theory of logical consequence operators indexed with taboo functions. It describes the mechanisms of logical inference in the environment of forbidden sentences.
Krysztofiak Wojciech
doaj   +1 more source

EVALUATION OF PENALTY FUNCTIONS FOR SEMI-GLOBAL MATCHING COST AGGREGATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The stereo matching method semi-global matching (SGM) relies on consistency constraints during the cost aggregation which are enforced by so-called penalty terms. This paper proposes new and evaluates four penalty functions for SGM.
C. Banz, P. Pirsch, H. Blume
doaj   +1 more source

Abnormality in the Theory of Necessary Optimality Conditions

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
The problems of existence, non-uniqueness, abnormality of solutions arising from the using of necessary optimality conditions are discussed in terms of the extension principle and sufficient optimality conditions. Simple examples are used.
V.I. Gurman, M.M. Khrustalev
doaj   +1 more source

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