Results 31 to 40 of about 268,057 (260)

A dynamic programming approach to constrained portfolios [PDF]

open access: yes, 2011
This paper studies constrained portfolio problems that may involve constraints on the probability or the expected size of a shortfall of wealth or consumption.
Kraft, Holger, Steffensen, Mogens
core   +1 more source

A new constructing auxiliary function method for global optimization

open access: yesMathematical and Computer Modelling, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Yong-Jun, Zhang, Jiang-She
openaire   +2 more sources

Research on Optimization of Auxiliary Anode Parameters of Cathodic Protection System of Buried Pipeline [PDF]

open access: yesCailiao Baohu, 2022
Cathodic protection is an important method to inhibit the electrochemical corrosion of pipelines, and its potential distribution directly affects the pipeline protection effect. Taking a product oil transportation station in Northwest China as an example,
ZHANG Qi - zhi, QUAN Bo, LI Lin
doaj   +1 more source

Improved physiological noise regression in fNIRS: a multimodal extension of the General Linear Model using temporally embedded Canonical Correlation Analysis [PDF]

open access: yes, 2020
For the robust estimation of evoked brain activity from functional Near-Infrared Spectroscopy (fNIRS) signals, it is crucial to reduce nuisance signals from systemic physiology and motion.
Boas, David A.   +4 more
core   +1 more source

A new auxiliary function method for general constrained global optimization

open access: yesOptimization, 2013
In this article, we first propose a method to obtain an approximate feasible point for general constrained global optimization problems (with both inequality and equality constraints). Then we propose an auxiliary function method to obtain a global minimizer or an approximate global minimizer with a required precision for general global optimization ...
Z.Y. Wu   +3 more
openaire   +2 more sources

A Subgradient Method for Free Material Design [PDF]

open access: yes, 2016
A small improvement in the structure of the material could save the manufactory a lot of money. The free material design can be formulated as an optimization problem.
Kocvara, Michal   +2 more
core   +2 more sources

Solving nonlinearly constrained global optimization problem via an auxiliary function method

open access: yesJournal of Computational and Applied Mathematics, 2009
Constrained continuous global minimization problems can be converted to unconstrained ones by adding a penalty term to the objective function. Penalty function methods require usually the determination of parameters, so that constrained and unconstrained problems have global minimizers.
Zhu, Wenxing, Ali, M.M.
openaire   +1 more source

A bi-level programming approach for trip matrix estimation and traffic control problems with stochastic user equilibrium link flows [PDF]

open access: yes, 2001
This paper deals with two mathematically similar problems in transport network analysis: trip matrix estimation and traffic signal optimisation on congested road networks. These two problems are formulated as bi-level programming problems with stochastic
Bard   +21 more
core   +1 more source

PageRank Optimization by Edge Selection [PDF]

open access: yes, 2012
The importance of a node in a directed graph can be measured by its PageRank. The PageRank of a node is used in a number of application contexts - including ranking websites - and can be interpreted as the average portion of time spent at the node by an ...
Avrachenkov   +19 more
core   +2 more sources

Multi-Task Transformer with Adaptive Cross-Entropy Loss for Multi-Dialect Speech Recognition

open access: yesEntropy, 2022
At present, most multi-dialect speech recognition models are based on a hard-parameter-sharing multi-task structure, which makes it difficult to reveal how one task contributes to others.
Zhengjia Dan   +4 more
doaj   +1 more source

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