Guillermo Hernández

Dr. Guillermo Hernández

BISITE Research Group, University of Salamanca. Calle Espejo sn, 24.2. 37007 Salamanca, Spain
orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2019
Verified
Conference Paper
Closed access
Alfonso Gonzalez-BrionesAlfonso Gonzalez-Briones
Alfonso Gonzalez-Briones
Guillermo HernándezGuillermo Hernández
Guillermo Hernández
Juan CorchadoJuan Corchado
Juan Corchado
SOSigeru Omatu
Sigeru Omatu
MMMohd Saberi Mohamad
Mohd Saberi Mohamad
The prediction of energy consumption is a task that allows energy supply companies to adapt to certain behaviors. Among these activities that companies can perform is to know the behavior of their customers to adapt their rates to consumption or know the intervals in which it will produce a greater demand for energy and have planned the adaptation of supply chains. In this sense, it is necessary to carry out an evaluation of methods that allow forecasting future energy consumption based on the consumption history and other variables of the users themselves. In this article, a review of the main machine learning models that allow predicting energy consumption using a one-year data set of a shoe store was made. The review made allowed to observe that for the data set using the Linear Regression and Support Vector Regression has obtained a success of 85.7% being the best results provided.

24 March 2021 in Electronics
Verified
Journal Article
Open access
PDF file
DGDavid García-Retuerta
David García-Retuerta
PCPablo Chamoso
Pablo Chamoso
Guillermo HernándezGuillermo Hernández
Guillermo Hernández
AGAgustín San Román Guzmán
Agustín San Román Guzmán
Tan YigitcanlarTan Yigitcanlar
Tan Yigitcanlar
Juan CorchadoJuan Corchado
Juan Corchado
A smart city is an environment that uses innovative technologies to make networks and services more flexible, effective, and sustainable with the use of information, digital, and telecommunication technologies, improving the city’s operations for the benefit of its citizens. Most cities incorporate data acquisition elements from their own systems or those managed by subcontracted companies that can be used to optimise their resources: energy consumption, smart meters, lighting, irrigation water consumption, traffic data, camera images, waste collection, security systems, pollution meters, climate data, etc. The city-as-a-platform concept is becoming popular and it is increasingly evident that cities must have efficient management systems capable of deploying, for instance, IoT platforms, open data, etc., and of using artificial intelligence intensively. For many cities, data collection is not a problem, but managing and analysing data with the aim of optimising resources and improving the lives of citizens is. This article presents deepint.net, a platform for capturing, integrating, analysing, and creating dashboards, alert systems, optimisation models, etc. This article shows how deepint.net has been used to estimate pedestrian traffic on the streets of Melbourne (Australia) using the XGBoost algorithm. Given the current situation, it is advisable not to transit urban roads when overcrowded, thus, the model proposed in this paper (and implemented with deepint.net) facilitates the identification of areas with less pedestrian traffic. This use case is an example of an efficient crowd management system, implemented and operated via a platform that offers many possibilities for the management of the data collected in smart territories and cities.

1 January 2021 in Sensors
Verified
Journal Article
Open access
PDF file
Juan CorchadoJuan Corchado
Juan Corchado
PCPablo Chamoso
Pablo Chamoso
Guillermo HernándezGuillermo Hernández
Guillermo Hernández
AGAgustín San Roman Gutierrez
Agustín San Roman Gutierrez
ARAlberto Rivas
Alberto Rivas
SOSigeru Omatu
Sigeru Omatu
This paper presents an efficient cyberphysical platform for the smart management of smart territories. It is efficient because it facilitates the implementation of data acquisition and data management methods, as well as data representation and dashboard configuration. The platform allows for the use of any type of data source, ranging from the measurements of a multi-functional IoT sensing devices to relational and non-relational databases. It is also smart because it incorporates a complete artificial intelligence suit for data analysis; it includes techniques for data classification, clustering, forecasting, optimization, visualization, etc. It is also compatible with the edge computing concept, allowing for the distribution of intelligence and the use of intelligent sensors. The concept of smart cities is evolving and adapting to new applications; the trend to create intelligent neighbourhoods, districts or territories is becoming increasingly popular, as opposed to the previous approach of managing an entire megacity. In this paper, the platform is presented, and its architecture and functionalities are described. Moreover, its operation has been validated in a case study where the bike renting service of Paris—Vélib’ Métropole has been managed. This platform could enable smart territories to develop adapted knowledge management systems, adapt them to new requirements and to use multiple types of data, and execute efficient computational and artificial intelligence algorithms. The platform optimizes the decisions taken by human experts through explainable artificial intelligence models that obtain data from IoT sensors, databases, the Internet, etc. The global intelligence of the platform could potentially coordinate its decision-making processes with intelligent nodes installed in the edge, which would use the most advanced data processing techniques.

19 July 2016 in Medical Physics
Verified
Journal Article
Closed access
Guillermo HernándezGuillermo Hernández
Guillermo Hernández
FFFrancisco Fernández
Francisco Fernández

28 March 2021 in Electronics
Verified
Journal Article
Open access
PDF file
Luis F. Castillo OssaLuis F. Castillo Ossa
Luis F. Castillo Ossa
PCPablo Chamoso
Pablo Chamoso
Jeferson Arango LópezJeferson Arango López
Jeferson Arango López
Francisco Pinto-SantosFrancisco Pinto-Santos
Francisco Pinto-Santos
Gustavo IsazaGustavo Isaza
Gustavo Isaza
Juan CorchadoJuan Corchado
Juan Corchado
COVID-19 is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and has a case-fatality rate of 2–3%, with higher rates among elderly patients and patients with comorbidities. Radiologically, COVID-19 is characterised by multifocal ground-glass opacities, even for patients with mild disease. Clinically, patients with COVID-19 present respiratory symptoms, which are very similar to other respiratory virus infections. Our knowledge regarding the SARS-CoV-2 virus is still very limited. These facts make it vitally important to establish mechanisms that allow to model and predict the evolution of the virus and to analyze the spread of cases under different circumstances. The objective of this article is to present a model developed for the evolution of COVID in the city of Manizales, capital of the Department of Caldas, Colombia, focusing on the methodology used to allow its application to other cases, as well as on the monitoring tools developed for this purpose. This methodology is based on a hybrid model which combines the population dynamics of the SIR model of differential equations with extrapolations based on recurrent neural networks. This combination provides self-explanatory results in terms of a coefficient that fluctuates with the restraint measures, which may be further refined by expert rules that capture the expected changes in such measures.

1 January 2021 in Neurocomputing
Verified
Journal Article
Closed access
Angel Martin del ReyAngel Martin del Rey
Angel Martin del Rey
Guillermo HernándezGuillermo Hernández
Guillermo Hernández
ATA. Bustos Tabernero
A. Bustos Tabernero
Araceli Queiruga-DiosAraceli Queiruga-Dios
Araceli Queiruga-Dios