Results 261 to 270 of about 341,237 (307)

Feature selection based index tracking: A two-stage approach for optimized sampling

open access: yesApplied Soft Computing
Thomas Robert Holy   +2 more
openaire   +1 more source

Evolutionarily Optimized Multi-Scale Gabor Modeling of Directional Lesion Texture in Dermoscopic Images for Interpretable Melanoma Classification. [PDF]

open access: yesDiagnostics (Basel)
Santiago-Montero R   +6 more
europepmc   +1 more source

A two-stage approach for VMAT treatment plan optimization [PDF]

open access: yes2013 IEEE International Conference on Automation Science and Engineering (CASE), 2013
In this paper we study the optimization problem for the radiation treatment planning of Volumetric-Modulated Arc Therapy (VMAT). Considering dose rate and MLC leafs as decision variables, we formulate the problem as nonlinear integer programming problem, which is very difficult to solve. A two-stage approach is proposed to tackle it, where in the first
Bofei Sun   +3 more
openaire   +2 more sources

A two-stage approach for structural topology optimization

Advances in Engineering Software, 1999
Abstract This paper proposes a two-stage optimization algorithm for topology optimization based on the homogenization method. The multistage approach aims to increase the stability and overall efficiency of homogenization-based topology optimizations. The homogenization method employed in this study uses a material constraint, which seeks the optimal
C.-Y. Lin, J.-N. Chou
exaly   +2 more sources

An extended Two-Stage Sequential Optimization approach: Properties and performance

European Journal of Operational Research, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Giulia Pedrielli   +2 more
openaire   +1 more source

Simulation approach to two-stage bond portfolio optimization problem [PDF]

open access: yes, 2014
Studies on two sides are done in this thesis. First, we consider bond portfolio optimization problem under stochastic optimization structure; second, specific algorithm to solve the problem is explored. A stochastic model for the problem is constructed.
openaire   +2 more sources

A variational approach to optimal two‐stage designs

Statistics in Medicine, 2019
Recalculating the sample size in adaptive two‐stage designs is a well‐established method to gain flexibility in a clinical trial. Jennison and Turnbull (2015) proposed an “optimal” adaptive two‐stage design based on the inverse normal combination test, which minimizes a mixed criterion of expected sample size under the alternative and conditional power.
Maximilian Pilz   +4 more
openaire   +3 more sources

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