Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Antonio G Ravelo-García"'
Autor:
Sofía Martín-González, Juan L Navarro-Mesa, Gabriel Juliá-Serdá, G Marcelo Ramírez-Ávila, Antonio G Ravelo-García
Publikováno v:
PLoS ONE, Vol 13, Iss 4, p e0194462 (2018)
Our contribution focuses on the characterization of sleep apnea from a cardiac rate point of view, using Recurrence Quantification Analysis (RQA), based on a Heart Rate Variability (HRV) feature selection process. Three parameters are crucial in RQA:
Externí odkaz:
https://doaj.org/article/aea6d67adfb24887bb9a1d0f047313b1
Publikováno v:
Information, Vol 14, Iss 10, p 571 (2023)
This study presents a novel approach for kernel selection based on Kullback–Leibler divergence in variational autoencoders using features generated by the convolutional encoder. The proposed methodology focuses on identifying the most relevant subs
Externí odkaz:
https://doaj.org/article/f8523a125b174af8ab0cc6efab75a8f3
Autor:
Sofía Martín-González, Antonio G. Ravelo-García, Juan L. Navarro-Mesa, Eduardo Hernández-Pérez
Publikováno v:
Sensors, Vol 23, Iss 9, p 4267 (2023)
In this paper, we thoroughly analyze the detection of sleep apnea events in the context of Obstructive Sleep Apnea (OSA), which is considered a public health problem because of its high prevalence and serious health implications. We especially evalua
Externí odkaz:
https://doaj.org/article/564f8d4b10f749269b4a89a43c52650b
Autor:
Fábio Mendonça, Sheikh Shanawaz Mostafa, Diogo Freitas, Fernando Morgado-Dias, Antonio G. Ravelo-García
Publikováno v:
Entropy, Vol 24, Iss 5, p 688 (2022)
Methodologies for automatic non-rapid eye movement and cyclic alternating pattern analysis were proposed to examine the signal from one electroencephalogram monopolar derivation for the A phase, cyclic alternating pattern cycles, and cyclic alternati
Externí odkaz:
https://doaj.org/article/2ce7eb5648c34feb85a836f3e5559dc5
Autor:
Morgado-Dias, Ankit Gupta, Fábio Mendonça, Sheikh Shanawaz Mostafa, Antonio G. Ravelo-García, Fernando
Publikováno v:
Electronics; Volume 12; Issue 13; Pages: 2954
Cyclic Alternating Pattern (CAP) is a sleep instability marker defined based on the amplitude and frequency of the electroencephalogram signal. Because of the time and intensive process of labeling the data, different machine learning and automatic a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::fcb6f5c35579284a12efcd50903b2ef9
Publikováno v:
Sensors, Vol 20, Iss 3, p 888 (2020)
Sleep related disorders can severely disturb the quality of sleep. Among these disorders, obstructive sleep apnea (OSA) is highly prevalent and commonly undiagnosed. Polysomnography is considered to be the gold standard exam for OSA diagnosis. Even t
Externí odkaz:
https://doaj.org/article/6628bc8114224a43b3a239630110059b
Autor:
Elyoenai Guerra-Segura, Carlos M. Travieso-González, Jesús B. Alonso-Hernández, Antonio G. Ravelo-García, Gregorio Carretero
Publikováno v:
Symmetry, Vol 7, Iss 2, Pp 1061-1079 (2015)
Melanoma diagnosis depends on the experience of doctors. Symmetry is one of the most important factors to measure, since asymmetry shows an uncontrolled growth of cells, leading to melanoma cancer. A system for melanoma detection in diagnosing melano
Externí odkaz:
https://doaj.org/article/a4887d5225f146a28cd8d4cebf402459
Autor:
Antonio G. Ravelo-García, Jan F. Kraemer, Juan L. Navarro-Mesa, Eduardo Hernández-Pérez, Javier Navarro-Esteva, Gabriel Juliá-Serdá, Thomas Penzel, Niels Wessel
Publikováno v:
Entropy, Vol 17, Iss 5, Pp 2932-2957 (2015)
A diagnostic system for sleep apnea based on oxygen saturation and RR intervals obtained from the EKG (electrocardiogram) is proposed with the goal to detect and quantify minute long segments of sleep with breathing pauses. We measured the discrimina
Externí odkaz:
https://doaj.org/article/56ffe26db63541a3ba9ef0d7de31dba0
Autor:
José M. Canino-Rodríguez, Jesús García-Herrero, Juan Besada-Portas, Antonio G. Ravelo-García, Carlos Travieso-González, Jesús B. Alonso-Hernández
Publikováno v:
Sensors, Vol 15, Iss 3, Pp 5228-5250 (2015)
The limited efficiency of current air traffic systems will require a next-generation of Smart Air Traffic System (SATS) that relies on current technological advances. This challenge means a transition toward a new navigation and air-traffic procedure
Externí odkaz:
https://doaj.org/article/595776fcc7b447269003a485a418a862
Autor:
Antonio G. Ravelo-García, Juan L. Navarro-Mesa, Ubay Casanova-Blancas, Sofia Martin-Gonzalez, Pedro Quintana-Morales, Iván Guerra-Moreno, José M. Canino-Rodríguez, Eduardo Hernández-Pérez
Publikováno v:
Entropy, Vol 17, Iss 3, Pp 914-927 (2015)
In this paper the permutation entropy (PE) obtained from heart rate variability (HRV) is analyzed in a statistical model. In this model we also integrate other feature extraction techniques, the cepstrum coefficients derived from the same HRV and a s
Externí odkaz:
https://doaj.org/article/d690aef3b6464bebadcd58391122c9d2