Results 21 to 30 of about 724 (154)

Reformulating mixed-integer quadratically constrained quadratic programs [PDF]

, 2011
It is well known that semidefinite programming (SDP) can be used to derive useful relaxations for a variety of optimisation problems. Moreover, in the particular case of mixed-integer quadratic programs, SDP has been used to reformulate problems, rather ...
Galli, L, Letchford, A. N.
core  

Multi-Objective Optimization for Economic and Environmental Dispatch in DC Networks: A Convex Reformulation via a Conic Approximation

Electricity
This paper addresses the economic–environmental dispatch (EED) problem in DC power grids integrating thermoelectric and photovoltaic generation. A multi-objective optimization model is developed to minimize both fuel costs and CO2 emissions while ...
Nestor Julian Bernal-Carvajal, Carlos Arturo Mora-Peña, Oscar Danilo Montoya   +2 more
doaj   +1 more source

A novel dual‐decomposition method for non‐convex two‐stage stochastic mixed‐integer quadratically constrained quadratic problems

International Transactions in Operational Research, Volume 33, Issue 5, Page 3128-3157, September 2026.
Abstract We propose the novel p‐branch‐and‐bound method for solving two‐stage stochastic programming problems whose deterministic equivalents are represented by non‐convex mixed‐integer quadratically constrained quadratic programming (MIQCQP) models. The precision of the solution generated by the p‐branch‐and‐bound method can be arbitrarily adjusted by
Nikita Belyak, Fabricio Oliveira
wiley   +1 more source

Non-convex mixed-integer nonlinear programming : a survey [PDF]

, 2012
A wide range of problems arising in practical applications can be formulated as Mixed-Integer Nonlinear Programs (MINLPs). For the case in which the objective and constraint functions are convex, some quite effective exact and heuristic algorithms are ...
Burer, S, Letchford, Adam, Adam N. Letchford, Samuel Burer   +3 more
core  

Replication data for "Dantzig–Wolfe reformulations for binary quadratic problems" - kQKP dataset [PDF]

, 2021
The dataset contains instances for the cardinality constrained quadratic knapsack problem. These are used to test decomposition methods for Binary Quadratic Programs.
Traversi, Emiliano, Ceselli, Alberto, Létocart, Lucas   +2 more
core   +1 more source

Adaptive 3D Robust Projection Filtering for Erratic Noise Attenuation

Geophysical Prospecting, Volume 74, Issue 6, July 2026.
ABSTRACT The effective processing of seismic data contaminated by high‐amplitude erratic noise presents a problem in geophysical signal processing, particularly within onshore surveys where noise distributions are complex, non‐stationary and largely unknown.
Akash Nair, Mauricio D. Sacchi
wiley   +1 more source

Improving the performance of standard solvers for quadratic 0-1 programs by a tight convex reformulation: The QCR method [PDF]

, 2008
Let View the MathML source be a 0-1 quadratic program which consists in minimizing a quadratic function subject to linear equality constraints. In this paper, we present QCR, a general method to reformulate View the MathML source into an equivalent 0-1 ...
Marie-Christine Plateau, Elloumi, Sourour, Alain Billionnet, Plateau, Marie-Christine, Sourour Elloumi, Billionnet, Alain   +5 more
core   +1 more source

Upscaling the Strength Domain of Heterogeneous Cohesive‐Frictional Materials via a General FFT‐Based Limit Analysis Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 12, 30 June 2026.
ABSTRACT Limit analysis and yield design provide a well‐defined mathematical framework for upscaling the strength properties of heterogeneous materials. These techniques can be incorporated into an FFT‐based computational micromechanics framework to evaluate the strength of heterogeneous materials, based on images of their microstructure.
Elodie Donval, Matti Schneider
wiley   +1 more source

A Virtual Heat Flux Method for Simple and Accurate Neumann Thermal Boundary Imposition in the Material Point Method

International Journal for Numerical Methods in Engineering, Volume 127, Issue 12, 30 June 2026.
ABSTRACT In the material point method (MPM), accurate enforcement of thermal boundary conditions, particularly convective heat flux boundaries, is crucial for the reliable simulation of thermally coupled multiphysics processes, such as natural heat‐convection phenomena on Earth.
Jidu Yu, Jidong Zhao
wiley   +1 more source

Minimizing Cost and Overdraft in California's Multi‐Reservoir Conjunctive Use System With Limited Hydrologic Foresight

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Hydroeconomic modeling yields many insights for water management, including integration of supply and demand management, reservoir operations and conjunctive management, and management under changed conditions. Hydroeconomic models of large, conjunctively operated water systems with many reservoirs operated for over‐year storage commonly ...
Wyatt Arnold, Jay Lund
wiley   +1 more source