Results 21 to 30 of about 34,499 (189)

Machine Learning-Based Offloading Strategy for Lightweight User Mobile Edge Computing Tasks

open access: yesComplexity, 2021
This paper presents an in-depth study and analysis of offloading strategies for lightweight user mobile edge computing tasks using a machine learning approach.
Shuchen Zhou, Waqas Jadoon, Junaid Shuja
doaj   +1 more source

Exploiting Sparsity in SDP Relaxation for Harmonic Balance Method

open access: yesIEEE Access, 2020
In general, harmonic balance problems are extremely nonconvex and difficult to solve. A convex relaxation in the form of semidefinite programming has attracted a lot of attention recently, as it finds a global solution with high accuracy without the need
Cheng-Hsiung Yang, Ben Shen Deng
doaj   +1 more source

Convex underestimating relaxation techniques for nonconvex polynomial programming problems: computational overview

open access: yesJournal of the Mechanical Behavior of Materials, 2015
This paper introduces constructing convex-relaxed programs for nonconvex optimization problems. Branch-and-bound algorithms are convex-relaxation-based techniques.
Keller André A.
doaj   +1 more source

The Reformulation-based aGO Algorithm for Solving Nonconvex MINLP Problems – Some Improvements

open access: yesChemical Engineering Transactions, 2013
The a-reformulation (aR) technique can be used to transform any nonconvex twice-differentiable mixed-integer nonlinear programming problem to a convex relaxed form.
A. Lundell, T. Westerlund
doaj   +1 more source

Two-Channel Linear Phase FIR QMF Bank Minimax Design via Global Nonconvex Optimization Programming [PDF]

open access: yesIEEE Transactions on Signal Processing, 2010
In this correspondence, a two-channel linear phase finite-impulse-response (FIR) quadrature mirror filter (QMF) bank minimax design problem is formulated as a nonconvex optimization problem so that a weighted sum of the maximum amplitude distortion of the filter bank, the maximum passband ripple magnitude and the maximum stopband ripple magnitude of ...
Bingo Wing-Kuen Ling   +5 more
openaire   +3 more sources

Outer approximation for global optimization of mixed-integer quadratic bilevel problems

open access: yesMathematical programming, 2021
Bilevel optimization problems have received a lot of attention in the last years and decades. Besides numerous theoretical developments there also evolved novel solution algorithms for mixed-integer linear bilevel problems and the most recent algorithms ...
Thomas Kleinert   +2 more
semanticscholar   +1 more source

An Improved Geometric Programming Approach for Optimization of Biochemical Systems

open access: yesJournal of Applied Mathematics, 2014
This paper proposes an improved geometric programming approach to address the optimization of biochemical systems. In the proposed method we take advantage of a special and interesting class of nonlinear kinetic models known as generalized mass action ...
Gongxian Xu, Lei Wang
doaj   +1 more source

Using convex nonlinear relaxations in the global optimization of nonconvex generalized disjunctive programs [PDF]

open access: yesComputers & Chemical Engineering, 2013
In this paper we present a framework to generate tight convex relaxations for nonconvex generalized disjunctive programs. The proposed methodology builds on our recent work on bilinear and concave generalized disjunctive programs for which tight linear relaxations can be generated, and extends its application to nonlinear relaxations.
Ruiz, Juan P., Grossmann, Ignacio E.
openaire   +1 more source

Combined Heat and Power Dynamic Economic Dispatch with Emission Limitations Using Hybrid DE-SQP Method

open access: yesAbstract and Applied Analysis, 2013
Combined heat and power dynamic economic emission dispatch (CHPDEED) problem is a complicated nonlinear constrained multiobjective optimization problem with nonconvex characteristics.
A. M. Elaiw, X. Xia, A. M. Shehata
doaj   +1 more source

Robust Adaptive Beamformer Based on Constant Modulus Penalty Criteria

open access: yesInternational Journal of Aerospace Engineering, 2023
In this study, a robust adaptive beamformer based on constant modulus (CM) criteria is developed to improve the robustness of the array beamforming, which is a reconstructing minimal optimization for solving the mismatch problem of weight vector caused ...
Chuanhui Hao, Bin Zhang, Xubao Sun
doaj   +1 more source

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