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Edilson Delgado-Trejos
Researcher at National University of Colombia at Manizales
Publications - 54
Citations - 458
Edilson Delgado-Trejos is an academic researcher from National University of Colombia at Manizales. The author has contributed to research in topics: Computer science & Attractor. The author has an hindex of 10, co-authored 47 publications receiving 348 citations.
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Journal ArticleDOI
Digital auscultation analysis for heart murmur detection.
Edilson Delgado-Trejos,A. F. Quiceno-Manrique,Juan Ignacio Godino-Llorente,Manuel Blanco-Velasco,Germán Castellanos-Domínguez +4 more
TL;DR: Fractal type features were the most robust family of parameters (in the sense of accuracy vs. computational load) for the automatic detection of murmurs from phonocardiographic signals.
Journal Article
Automatic Selection of Acoustic and Non-linear Dynamic Features in Voice Signals for Hypernasality Detection
Juan Rafael Orozco-Arroyave,S. Murillo-Rendón,Andrés Marino Álvarez-Meza,Julián D. Arias-Londoño,Edilson Delgado-Trejos,Jesús Francisco Vargas-Bonilla,César Germán Castellanos-Domínguez +6 more
TL;DR: Nonlinear dynamic features are valuable tool for automatic detection of hypernasality; addtionally both feature selection techniques show stable and consistent results, achieving accuracy levels of up to 93.73%.
Journal ArticleDOI
Soft metrology based on machine learning: a review
Marcela Vallejo,Carolina de la Espriella,Juliana Gómez-Santamaría,Andrés Felipe Ramírez-Barrera,Edilson Delgado-Trejos +4 more
TL;DR: This paper presents a review of indirect measurement with the aim of understanding the state of development in this area, as well as the current challenges and opportunities; and proposes to gather all the different designations under the term soft metrology, broadening its definition.
Journal ArticleDOI
Embedded Dimension and Time Series Length. Practical Influence on Permutation Entropy and Its Applications
TL;DR: The results seem to indicate that shorter lengths than those suggested by N>>m! are sufficient for a stable PE calculation, and even very short time series can be robustly classified based on PE measurements before the stability point is reached.
Journal ArticleDOI
Speckle Noise Reduction in Ultrasound Images for Improving the Metrological Evaluation of Biomedical applications: an Overview
Carlos Andrés Duarte-Salazar,Andrés Eduardo Castro-Ospina,Miguel A. Becerra,Edilson Delgado-Trejos +3 more
TL;DR: This paper describes, in detail, 27 techniques that mainly focus on the smoothing or elimination of speckle noise in medical ultrasound images, and describes recent techniques in the field of machine learning focused on deep learning, which are not yet well known but greatly relevant.