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Optimization Problems [PDF]

open access: yes, 2016
This issue deals with the conceptualization of an optimization problem. In particular, we first provide a formal definition of such a mathematical concept. Then, we give some classifications of the optimization problems on the basis of their main characteristics (presence of time dependence and of constraints). In so doing, we also outline the standard
CERQUETI, ROY, COPPIER, RAFFAELLA
openaire   +2 more sources

Quantum Optimization Problems

open access: yes, 2002
Krentel [J. Comput. System. Sci., 36, pp.490--509] presented a framework for an NP optimization problem that searches an optimal value among exponentially-many outcomes of polynomial-time computations.
C. H. Bennett   +14 more
core   +2 more sources

A Two-Step Strategy for System Identification of Civil Structures for Structural Health Monitoring Using Wavelet Transform and Genetic Algorithms

open access: yesApplied Sciences, 2017
Nowadays, the accurate identification of natural frequencies and damping ratios play an important role in smart civil engineering, since they can be used for seismic design, vibration control, and condition assessment, among others.
Carlos Andres Perez-Ramirez   +6 more
doaj   +1 more source

Revamped Sine Cosine Algorithm Centered Optimization of System Stabilizers and Oscillation Dampers for Wind Penetrated Power System

open access: yesIEEE Access, 2023
The mapping of damping ratios and damping factors by Sine-Cosine Algorithm (SCA) is significant in the analysis of low frequency oscillations generated in an integrated network having multiple conventional and renewable energy sources.
S. Grace Sadhana, S. Kumaravel, S. Ashok
doaj   +1 more source

Coalition structure generation in cooperative games with compact representations [PDF]

open access: yes, 2018
This paper presents a new way of formalizing the coalition structure generation problem (CSG) so that we can apply constraint optimization techniques to it. Forming effective coalitions is a major research challenge in AI and multi-agent systems.
Atsushi Iwasaki   +5 more
core   +2 more sources

About the Object-Oriented Implementation of the Branch and Boundary Method for the Travelling Salesman Problem. Part II

open access: yesСовременные информационные технологии и IT-образование, 2022
Many discrete optimization problems are very difficult to solve on a computer; hence they are titled “intractable”. More precisely, the possible approaches to solving these problems quickly are difficult to solve (for describing algorithms, for ...
Boris Melnikov
doaj   +1 more source

Sharp interface limit for a phase field model in structural optimization

open access: yes, 2016
We formulate a general shape and topology optimization problem in structural optimization by using a phase field approach. This problem is considered in view of well-posedness and we derive optimality conditions.
Christoph Rupprecht   +7 more
core   +1 more source

Notes on Alpha Stream Optimization [PDF]

open access: yes, 2015
In these notes we discuss investment allocation to multiple alpha streams traded on the same execution platform, including when trades are crossed internally resulting in turnover reduction.
Kakushadze, Zura
core   +1 more source

Polynomial hulls and an optimization problem

open access: yes, 2004
Let T be the unit circle in the complex plane C. This paper proves the existence of analytic structure in a compact subset K of T X C^n, where K has so-called "lineally convex" or "hypoconvex" fibers over T.
Whittlesey, Marshall A.
core   +2 more sources

Energy-Efficient On–Off Power Control of Femto-Cell Base Stations for Cooperative Cellular Networks

open access: yesApplied Sciences, 2016
Improving energy efficiency (EE) of mobile communication systems (MCSs) has been considered a key aim in recent years, and has been the subject of intense research interest.
Woongsup Lee, Bang Chul Jung
doaj   +1 more source

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