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Author
Debora Gil; David Roche; Agnes Borras; Jesus Giraldo
Title
Terminating Evolutionary Algorithms at their Steady State
Type
Journal Article
Year
2015
Publication
Computational Optimization and Applications
Abbreviated Journal
COA
Volume
61
Issue
2
Pages
489-515
Keywords
Evolutionary algorithms; Termination condition; Steady state; Differential evolution
Abstract
Assessing the reliability of termination conditions for evolutionary algorithms (EAs) is of prime importance. An erroneous or weak stop criterion can negatively affect both the computational effort and the final result. We introduce a statistical framework for assessing whether a termination condition is able to stop an EA at its steady state, so that its results can not be improved anymore. We use a regression model in order to determine the requirements ensuring that a measure derived from EA evolving population is related to the distance to the optimum in decision variable space. Our framework is analyzed across 24 benchmark test functions and two standard termination criteria based on function fitness value in objective function space and EA population decision variable space distribution for the differential evolution (DE) paradigm. Results validate our framework as a powerful tool for determining the capability of a measure for terminating EA and the results also identify the decision variable space distribution as the best-suited for accurately terminating DE in real-world applications.
Address
Corporate Author
Thesis
Publisher
Springer US
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0926-6003
ISBN
Medium
Area
Expedition
Conference
Notes
IAM; 600.044; 605.203; 600.060; 600.075
Approved
no
Call Number
Admin @ si @ GRB2015
Serial
2560
Permanent link to this record
Author
Antoni Rosell; Sonia Baeza; S. Garcia-Reina; JL. Mate; Ignasi Guasch; I. Nogueira; I. Garcia-Olive; Guillermo Torres; Carles Sanchez; Debora Gil
Title
Radiomics to increase the effectiveness of lung cancer screening programs. Radiolung preliminary results.
Type
Journal Article
Year
2022
Publication
European Respiratory Journal
Abbreviated Journal
ERJ
Volume
60
Issue
66
Pages
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
IAM
Approved
no
Call Number
Admin @ si @ RBG2022c
Serial
3835
Permanent link to this record
Author
Oriol Rodriguez-Leor; Debora Gil; Eduard Fernandez-Nofrerias
Title
Analisis en los cambios en el nivel de gris en las secuencias angiograficas mediante descriptores estadisticos para determinar la perfusion miocardica
Type
Journal Article
Year
2006
Publication
Revista Española de Cardiología
Abbreviated Journal
REC
Volume
59 Supl 2-166
Issue
2
Pages
128
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Notes
IAM;
Approved
no
Call Number
IAM @ iam @ RGF2006
Serial
1640
Permanent link to this record
Author
Aura Hernandez-Sabate; Debora Gil; Jaume Garcia; Enric Marti
Title
Image-based Cardiac Phase Retrieval in Intravascular Ultrasound Sequences
Type
Journal Article
Year
2011
Publication
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Abbreviated Journal
T-UFFC
Volume
58
Issue
1
Pages
60-72
Keywords
3-D exploring; ECG; band-pass filter; cardiac motion; cardiac phase retrieval; coronary arteries; electrocardiogram signal; image intensity local mean evolution; image-based cardiac phase retrieval; in vivo pullbacks acquisition; intravascular ultrasound sequences; longitudinal motion; signal extrema; time 36 ms; band-pass filters; biomedical ultrasonics; cardiovascular system; electrocardiography; image motion analysis; image retrieval; image sequences; medical image processing; ultrasonic imaging
Abstract
Longitudinal motion during in vivo pullbacks acquisition of intravascular ultrasound (IVUS) sequences is a major artifact for 3-D exploring of coronary arteries. Most current techniques are based on the electrocardiogram (ECG) signal to obtain a gated pullback without longitudinal motion by using specific hardware or the ECG signal itself. We present an image-based approach for cardiac phase retrieval from coronary IVUS sequences without an ECG signal. A signal reflecting cardiac motion is computed by exploring the image intensity local mean evolution. The signal is filtered by a band-pass filter centered at the main cardiac frequency. Phase is retrieved by computing signal extrema. The average frame processing time using our setup is 36 ms. Comparison to manually sampled sequences encourages a deeper study comparing them to ECG signals.
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0885-3010
ISBN
Medium
Area
Expedition
Conference
Notes
IAM;ADAS
Approved
no
Call Number
IAM @ iam @ HGG2011
Serial
1546
Permanent link to this record
Author
Oriol Rodriguez-Leor; Josefina Mauri; Eduard Fernandez-Nofrerias; Antonio Tovar; Vicente del Valle; Aura Hernandez-Sabate; Debora Gil; Petia Radeva
Title
Utilizacion de la estructura de los campos vectoriales para la deteccion de la Adventicia en imagenes de Ecografia Intracoronaria
Type
Journal
Year
2004
Publication
Revista Española de Cardiología
Abbreviated Journal
REC
Volume
57
Issue
2
Pages
100
Keywords
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
SEC
Notes
MILAB;IAM
Approved
no
Call Number
BCNPCL @ bcnpcl @ RMF2004
Serial
566
Permanent link to this record
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