Results 81 to 90 of about 131,030 (317)

Binary particle swarm optimization in classification [PDF]

open access: yes, 2005
Purpose of this work is to show that the Particle Swarm Optimization Algorithm may improve the results of same well known Machine Learning methods in the resolution of discrete classification problems.
Galván, Inés M.   +5 more
core  

Discrete Optimization: A Quantum Revolution?

open access: yesSSRN Electronic Journal
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Stefan Creemers   +1 more
openaire   +2 more sources

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

open access: yesAdvanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge   +8 more
wiley   +1 more source

Investigation on Adjoint Based Gradient Computations for Realistic 3d Aero-Optimization

open access: yes, 2010
A discrete adjoint method for e ciently computing gradients for aerodynamic shape op- timizations is presented. The chain itself involves an unstructured mesh Reynolds-Averaged Navier-Stokes solver, and is suitable for the optimization of complex ...
Brezillon, Joel   +3 more
core  

基于蚂蚁算法的谐波齿轮传动模糊优化设计

open access: yesJixie chuandong, 2006
The optimization design issues of harmonic gear `transmission were studied,and its fuzzy optimization design model with discrete variables was set up.The basic ant colony optimization algorithm was improved by introducing rebirth of ant colony.In order ...
郭惠昕
doaj  

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Aerodynamic Shape Optimization Using the Discrete Adjoint of the Navier-Stokes Equations: Applications Toward Complex 3D Configutations

open access: yes, 2009
Within the next few years, numerical shape optimization based on high fidelity methods is likely to play a strategic role in future aircraft design. In this context, suitable tools have to be developed for solving aerodynamic shape optimization problems,
Dwight, Richard P.   +5 more
core  

DMFO-CD: A Discrete Moth-Flame Optimization Algorithm for Community Detection

open access: yes, 2021
In this paper, a discrete moth–flame optimization algorithm for community detection (DMFO-CD) is proposed. The representation of solution vectors, initialization, and movement strategy of the continuous moth–flame optimization are purposely adapted in ...
Shokooh Taghian   +7 more
core   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

Time and nodal decomposition with implicit non-anticipativity constraints in dynamic portfolio optimization [PDF]

open access: yes
We propose a decomposition method for the solution of a dynamic portfolio optimization problem which fits the formulation of a multistage stochastic programming problem.
Elio Canestrelli, Diana Barro
core  

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