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Mostrando ítems 31-40 de 61
Artículo
rs-Sparse principal component analysis: A mixed integer nonlinear programming approach with VNS
(PERGAMON-ELSEVIER SCIENCE LTD, 2013-05-03)
Principal component analysis is a popular data analysis dimensionality reduction technique, aiming to project with minimum error for a given dataset into a subspace of smaller number of dimensions. In order to improve ...
Artículo
An optimization tool to design the field of a solar power tower plant allowing heliostats of different sizes
(Wiley, 2017)
The design of a Solar Power Tower plant involves the optimization of the heliostat field layout. Fields are usually designed to have all heliostats of identical size. Although the use of a single heliostat size has been ...
Artículo
Time series interpolation via global optimization of moments fitting
(ELSEVIER SCIENCE BV, 2013-04-16)
Most time series forecasting methods assume the series has no missing values. When missing values exist, interpolation methods, while filling in the blanks, may substantially modify the statistical pattern of the data, ...
Artículo
Solving Multifacility Huff Location Models on Networks Using Variable Neighborhood Search and Multi-Start Local Search Metaheuristics
(Elsevier, 2012-12-01)
We consider multifacility Huff location problems on networks. The mixed integer nonlinear optimization problem is solved using Variable Neighborhood Search and Multi-Start Local Search metaheuristics. Computational experience ...
Artículo
Single-facility huff location problems on networks
(Springer, 2013-09-17)
Huff location problems have been extensively analyzed within the field of competitive continuous location. In this work, two Huff location models on networks are addressed, by considering that users go directly to the ...
Artículo
Multi-instance classification through spherical separation and VNS
(PERGAMON-ELSEVIER SCIENCE LTD, 2013-05-17)
A two-class classification problem is considered where the objects to be classified are bags of instances in d-space. The classification rule is defined in terms of an open d-ball. A bag is labeled positive if it meets the ...
Artículo
Minimizing the passengers' traveling time in the stop location problem
(TAYLOR & FRANCIS LTD, 2016-05-01)
In this paper we consider the location of stops along the edges of an already existing public transportation network. The positive effect of new stops is given by the better access of the passengers to the public transport ...
Artículo
A global optimization procedure for the location of a median line in the three-dimensional space
(ELSEVIER SCIENCE BV, 2011-06-01)
A global optimization procedure is proposed to find a line in the Euclidean three-dimensional space which minimizes the sum of distances to a given finite set of three-dimensional data points. Although we are using similar ...
Artículo
On approximate Monetary Unit Sampling
(ELSEVIER SCIENCE BV, 2011-09-28)
Monetary Unit Sampling (MUS), also known as Dollar-Unit Sampling, is a popular sampling strategy in Auditing, in which all units are to be randomly selected with probabilities proportional to the book value. However, if ...
Artículo
The Markovian arrival process: A statistical model for daily precipitation amounts
(ELSEVIER SCIENCE BV, 2013-12-21)
The Markovian arrival process (MAP) is a stochastic process that allows for modeling dependent and non-exponentially distributed observations. Due to its versatility, it has been widely applied in different contexts, from ...