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Correlation analysis of different measurement places of galvanic skin response in test groups facing pleasant and unpleasant stimuli

Sanchez-Comas, Andres; Synnes, Kåre; Molina Estren, Diego; Troncoso Palacio, Alexander; Comas Gonzalez, Zhoe (Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2021-06-19)

The galvanic skin response (GSR; also widely known as electrodermal activity (EDA)) is a signal for stress-related studies. Given the sparsity of studies related to the GSR and the variety of devices, this study was conducted ...
Human activity recognition data analysis: history, evolutions, and new trends

Ariza Colpas, Paola Patricia; sVicario, Enrico; Oviedo Carrascal, Ana Isabel; aziz, shariq ; Piñeres Melo, Marlon Alberto; Quintero linero, Alejandra paola; PATARA, FULVIO (Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2022-04-29)

The Assisted Living Environments Research Area–AAL (Ambient Assisted Living), focuses on generating innovative technology, products, and services to assist, medical care and rehabilitation to older adults, to increase the ...
Modeling radio wave propagation for wireless sensor networks in vegetated environments: a systematic literature review

Barrios-Ulloa, Alexis; Ariza Colpas, Paola Patricia; Sánchez-Moreno, Hernando; Quintero linero, Alejandra paola; De-La-Hoz-Franco, Emiro (Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2022-07-15)

The use of wireless sensor networks (WSN) for monitoring variables in agricultural environments and natural forests has been increasing in recent years. However, the sizing of these systems is affected by the inaccuracy ...
Overview of mobile communications in Colombia and introduction to 5G

Barrios-Ulloa, Alexis; Cama-Pinto, Dora; Arrabal Campos, Francisco Manuel; Martínez Lao, Juan Antonio; Monsalvo, Jose; Hernández-López, Audomaro; Cama-Pinto, Alejandro (Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2023)

The deployment of 5G around the world continues to progress at a rapid pace, especially in North America and Asia. Its advantages and efficiency as a data transmission network have been widely demonstrated in different ...
Precision agriculture and sensor systems applications in Colombia through 5G networks

ARRUBLA HOYOS, WILSON DE JESÚS; Ojeda Beltran, Adelaida; Solano-Barliza, Andrés D.; Rambauth-Ibarra, Geovanny; Barrios-Ulloa, Alexis; Cama-Pinto, Dora; Arrabal Campos, Francisco Manuel; Martínez Lao, Juan Antonio; Cama-Pinto, Alejandro; Manzano-Agugliaro, Francisco (Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2022-09-26)

The growing global demand for food and the environmental impact caused by agriculture have made this activity increasingly dependent on electronics, information technology, and telecommunications technologies. In Colombia, ...

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Correlation analysis of different measurement places of galvanic skin response in test groups facing pleasant and unpleasant stimuli
...
Sanchez-Comas, Andres | 2021-06-19

The galvanic skin response (GSR; also widely known as electrodermal activity (EDA)) is a signal for stress-related studies. Given the sparsity of studies related to the GSR and the variety of devices, this study was conducted at the Human Health Activity Laboratory (H2AL) with 17 healthy subjects to determine the variability in the detection of changes in the galvanic skin response among a test group with heterogeneous respondents facing pleasant and unpleasant stimuli, correlating the GSR biosignals measured from different body sites. We experimented with the right and left wrist, left fingers, the inner side of the right foot using Shimmer3GSR and Empatica E4 sensors. The results indicated the most promising homogeneous places for measuring the GSR, namely, the left fingers and right foot. The results also suggested that due to a significantly strong correlation among the inner side of the right foot and the left fingers, as well as the moderate correlations with the right and left wrists, the foot may be a suitable place to homogenously measure a GSR signal in a test group. We also discuss some possible causes of weak and negative correlations from anomalies detected in the raw data possibly related to the sensors or the test group, which may be considered to develop robust emotion detection systems based on GRS biosignals.

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Human activity recognition data analysis: history, evolutions, and new trends
...
Ariza Colpas, Paola Patricia | 2022-04-29

The Assisted Living Environments Research Area–AAL (Ambient Assisted Living), focuses on generating innovative technology, products, and services to assist, medical care and rehabilitation to older adults, to increase the time in which these people can live. independently, whether they suffer from neurodegenerative diseases or some disability. This important area is responsible for the development of activity recognition systems—ARS (Activity Recognition Systems), which is a valuable tool when it comes to identifying the type of activity carried out by older adults, to provide them with assistance. that allows you to carry out your daily activities with complete normality. This article aims to show the review of the literature and the evolution of the different techniques for processing this type of data from supervised, unsupervised, ensembled learning, deep learning, reinforcement learning, transfer learning, and metaheuristics approach applied to this sector of science. health, showing the metrics of recent experiments for researchers in this area of knowledge. As a result of this article, it can be identified that models based on reinforcement or transfer learning constitute a good line of work for the processing and analysis of human recognition activities.

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Modeling radio wave propagation for wireless sensor networks in vegetated environments: a systematic literature review
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Barrios-Ulloa, Alexis | 2022-07-15

The use of wireless sensor networks (WSN) for monitoring variables in agricultural environments and natural forests has been increasing in recent years. However, the sizing of these systems is affected by the inaccuracy of the radio wave propagation models used, leading to possible increased costs and measurement errors. This systematic literature review (SLR) aims to identify propagation models widely used in WSN deployments in agricultural or naturally vegetated environments and their effectiveness in estimating signal losses. We also identified today’s wireless technologies most used in precision agriculture (PA) system implementations. In addition, the results of studies focused on the development of new propagation models for different environments are evaluated. Scientific and technical analysis is presented based on articles consulted in different specialized databases, which were selected according to different combinations of criteria. The results show that, in most of the application cases, vegetative models present high error values when estimating attenuation.

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Overview of mobile communications in Colombia and introduction to 5G
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Barrios-Ulloa, Alexis | 2023

The deployment of 5G around the world continues to progress at a rapid pace, especially in North America and Asia. Its advantages and efficiency as a data transmission network have been widely demonstrated in different fields such as agriculture, education, health, and surveillance. However, this process does not have the same dynamics in Latin America, specifically in Colombia. The country is currently implementing actions aimed at facilitating the deployment of this technology in the short term, including pilot tests for the use of the radio spectrum, spectrum auctions, the planning of future auctions, and the review of spectrum caps. The results of this review allow us to conclude that despite the forecasts and the intentions of the Colombian government and mobile communication service operators, 5G in standalone mode will not be commercially available in Colombia before the end of 2023. The main failures in its deployment are related to the lack of available spectrum to support the ultrahigh-reliability and low-latency, enhanced mobile broadband, and massive machine-type communications scenarios, as well as the delay in the auction processes for its assignment.

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Precision agriculture and sensor systems applications in Colombia through 5G networks
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ARRUBLA HOYOS, WILSON DE JESÚS | 2022-09-26

The growing global demand for food and the environmental impact caused by agriculture have made this activity increasingly dependent on electronics, information technology, and telecommunications technologies. In Colombia, agriculture is of great importance not only as a commercial activity, but also as a source of food and employment. However, the concept of smart agriculture has not been widely applied in this country, resulting in the high production of various types of crops due to the planting of large areas of land, rather than optimization of the processes involved in the activity. Due to its technical characteristics and the radio spectrum considered in its deployment, 5G can be seen as one of the technologies that could generate the greatest benefits for the Colombian agricultural sector, especially in the most remote rural areas, which currently lack mobile network coverage. This article provides an overview of the current 5G technology landscape in Colombia and presents examples of possible 5G/IoT applications that could be developed in Colombian fields. The results show that 5G could facilitate the implementation of the smart farm in Colombia, improving current production and efficiency. It is useful when designing 5G implementation plans and strategies, since it categorizes crops by regions and products. This is based on budget availability, population density, and regional development plans, among others.

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Listar por eissn "1424-8220"

Correlation analysis of different measurement places of galvanic skin response in test groups facing pleasant and unpleasant stimuli ﻿

Human activity recognition data analysis: history, evolutions, and new trends ﻿

Modeling radio wave propagation for wireless sensor networks in vegetated environments: a systematic literature review ﻿

Overview of mobile communications in Colombia and introduction to 5G ﻿

Precision agriculture and sensor systems applications in Colombia through 5G networks ﻿

Envíos recientes

Correlation analysis of different measurement places of galvanic skin response in test groups facing pleasant and unpleasant stimuli

Human activity recognition data analysis: history, evolutions, and new trends

Modeling radio wave propagation for wireless sensor networks in vegetated environments: a systematic literature review

Overview of mobile communications in Colombia and introduction to 5G

Precision agriculture and sensor systems applications in Colombia through 5G networks

Correlation analysis of different measurement places of galvanic skin response in test groups facing pleasant and unpleasant stimuli

Human activity recognition data analysis: history, evolutions, and new trends

Modeling radio wave propagation for wireless sensor networks in vegetated environments: a systematic literature review

Overview of mobile communications in Colombia and introduction to 5G

Precision agriculture and sensor systems applications in Colombia through 5G networks