Results 11 to 20 of about 35,975,054 (321)

Subgroup Discovery in Machine Learning Problems with Formal Concepts Analysis and Test Theory Algorithms

open access: yesAlgorithms, 2023
A number of real-world problems of automatic grouping of objects or clustering require a reasonable solution and the possibility of interpreting the result. More specific is the problem of identifying homogeneous subgroups of objects.
Igor Masich   +5 more
doaj   +1 more source

Properties of the Quadratic Transformation of Dual Variables

open access: yesAlgorithms, 2023
We investigate a solution of a convex programming problem with a strongly convex objective function based on the dual approach. A dual optimization problem has constraints on the positivity of variables.
Vladimir Krutikov   +5 more
doaj   +1 more source

Calculating the Moore–Penrose Generalized Inverse on Massively Parallel Systems

open access: yesAlgorithms, 2022
In this work, we consider the problem of calculating the generalized Moore–Penrose inverse, which is essential in many applications of graph theory.
Vukašin Stanojević   +4 more
doaj   +1 more source

Hybridized Ackermann’s Methods

open access: yesIEEE Access, 2022
D'autres précisions sur la méthode d'Ackermann modifiée (MAM) pour l'attribution de valeurs propres sont examinées dans cet article. Des résultats supplémentaires concernant l'attribution de valeur propre incomplète (aie) sont déclarés, vérifiés et commentés. Les avantages de l'aie sont poursuivis encore plus loin dans cette étude au-delà de ce qui est
openaire   +1 more source

Recurrent Neural Network Models Based on Optimization Methods

open access: yesMathematics, 2022
Many researchers have addressed problems involving time-varying (TV) general linear matrix equations (GLMEs) because of their importance in science and engineering.
Predrag S. Stanimirović   +4 more
doaj   +1 more source

Synthetic Conditions for Obtaining Different Types of Amine-Holding Silica Particles and Their Sorption Behavior

open access: yesCrystals, 2023
The Stöber version of a sol-gel method of co-condensation of two alkoxysilanes (structuring tetraethoxysilane (TEOS) and functionalising N-containing silane) in an ammonia medium was used for the one-pot synthesis of spherical silica particles with ≡Si ...
Inna Melnyk   +2 more
doaj   +1 more source

Analysis of Digital Image Watermarking Techniques through Hybrid Methods

open access: yesAdv. Multim., 2020
Digital image watermarking is an attractive research area since it protects the multimedia data from unauthorized access. For designing an efficient and robust digital image watermarking system, the trade-off among imperceptibility, robustness, capacity,
M. Begum, Mohammad Shorif Uddin
semanticscholar   +1 more source

Preface [PDF]

open access: yesITM Web of Conferences
The preface provides an overview of the III International Workshop “Hybrid Methods of Modeling and Optimization in Complex Systems” (HMMOCS-III 2024), held from December 2-4, 2024, in Krasnoyarsk, Russian Federation.
Stanimirović Predrag   +4 more
doaj   +1 more source

A Modified Dai–Liao Conjugate Gradient Method Based on a Scalar Matrix Approximation of Hessian and Its Application

open access: yesJournal of Mathematics, 2023
We introduce and investigate proper accelerations of the Dai–Liao (DL) conjugate gradient (CG) family of iterations for solving large-scale unconstrained optimization problems.
Branislav Ivanov   +5 more
doaj   +1 more source

What are Hybrid Development Methods Made Of? An Evidence-Based Characterization [PDF]

open access: yes, 2019
Among the multitude of software development processes available, hardly any is used by the book. Regardless of company size or industry sector, a majority of project teams and companies use customized processes that combine different development methods—
Klünder, Jil   +8 more
core   +1 more source

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