Javier Medina-Quero

ORCID: 0000-0002-8577-8772
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About
Contact & Profiles
Research Areas
  • Context-Aware Activity Recognition Systems
  • IoT and Edge/Fog Computing
  • Human Pose and Action Recognition
  • Video Surveillance and Tracking Methods
  • Non-Invasive Vital Sign Monitoring
  • Human Mobility and Location-Based Analysis
  • Reproductive Biology and Fertility
  • IoT-based Smart Home Systems
  • Anomaly Detection Techniques and Applications
  • Mobile Health and mHealth Applications
  • Sperm and Testicular Function
  • Data Management and Algorithms
  • Technology Use by Older Adults
  • Solar Radiation and Photovoltaics
  • Energy Efficient Wireless Sensor Networks
  • Gait Recognition and Analysis
  • Advanced Chemical Sensor Technologies
  • Indoor and Outdoor Localization Technologies
  • Autism Spectrum Disorder Research
  • E-Learning and Knowledge Management
  • Advanced Neural Network Applications
  • Pressure Ulcer Prevention and Management
  • Smart Grid Energy Management
  • Time Series Analysis and Forecasting
  • Energy Load and Power Forecasting

Universidad de Granada
2011-2025

Universidad de Jaén
2015-2024

Universidad Nacional Abierta y a Distancia
2018-2022

Esteve (Spain)
2022

Indian Institute of Information Technology Allahabad
2020

Vellore Institute of Technology University
2020

University of Kalyani
2020

University of Catania
2020

Faculdade de Tecnologia e Ciências
2018

University of Córdoba
1994-1995

Human activity recognition has become an active research field over the past few years due to its wide application in various fields such as health-care, smart home monitoring, and surveillance. Existing approaches for homes have achieved promising results. Most of these evaluate real-time activities using only sensor activations that precede evaluation time (where decision is made). However, several critical situations, diagnosing people with dementia, "preceding activations" are not always...

10.1109/jbhi.2019.2918412 article EN IEEE Journal of Biomedical and Health Informatics 2019-05-22

This work presents a novel architecture for context-aware interactions within smart environments, leveraging Large Language Models (LLMs) to enhance user experiences. Our system integrates location data obtained through UWB tags and sensor-equipped homes with real-time human activity recognition (HAR) provide comprehensive understanding of context. contextual information is then fed an LLM-powered chatbot, enabling it generate personalised recommendations based on the user's current...

10.48550/arxiv.2502.14469 preprint EN arXiv (Cornell University) 2025-02-20

This work presents a comparative study of low cost and invasiveness sensors (plantar pressure inertial measurement units) for classifying cross-country skiing techniques. A dataset was created symmetrical analysis, with data collected from skiers using instrumented insoles that measured plantar pressure, foot angles, acceleration. deep learning model based on CNN LSTM trained various sensor combinations, ranging two specific to full multisensory array per incorporating 4 an unit...

10.3390/s25051500 article EN cc-by Sensors 2025-02-28

In the context of ambient-assisted living and monitoring activities behaviors, concept smart homes/environments has emerged as a research development field with many examples appearing in range different contexts (universities, centers, hospitals, residences). Recently, lab called UJAmI based on ambient intelligence was created at University Jaén order to provide an environment where solutions assistive technologies could be developed. This paper presents experience developing this within...

10.1109/access.2018.2849226 article EN cc-by-nc-nd IEEE Access 2018-01-01

The IoT describes a development field where new approaches and trends are in constant change. In this scenario, devices sensors offering higher precision everyday life an increasingly less invasive way. work, we propose the use of spatial-temporal features by means fuzzy logic as general descriptor for heterogeneous sensors. This sensor representation is highly efficient enables with low computing power to develop learning evaluation tasks activity recognition using light classifiers. To...

10.3390/s19163512 article EN cc-by Sensors 2019-08-11

Cardiac rehabilitation is a key program which significantly reduces the mortality in at-risk patients with ischemic heart disease; however, there lack of accessibility to these programs health centers. To resolve this issue, home-based for cardiac have arisen as potential solution. In work, we present an approach based on new generation wrist-worn devices improved quality rate sensors and applications. Real-time monitoring sessions high-quality clinical guidelines embedded wearable...

10.3390/s17122892 article EN cc-by Sensors 2017-12-12

Falling is a common issue within the aging population. The immediate detection of fall key to guarantee early and attention avoid other potential immobility risks reduction in recovery time. Video-based approaches for monitoring detection, although being highly accurate, are largely perceived as intrusive if deployed living environments. As an alternative, thermal vision-based methods can be offer more acceptable level privacy. To date, have focused on single-occupancy scenarios, which not...

10.1109/jsen.2020.3032728 article EN IEEE Sensors Journal 2020-10-21

Cardiac rehabilitation is a key program which significantly decreases mortality rates in high‐risk patients with ischemic heart disease. Due to the huge lack of accessibility such programs at Health Centers, outdoor‐based for cardiac have been proposed as an excellent tool improve Centers. These make use wrist‐worn devices real‐time monitoring sessions based on clinical guidelines. In this way, greater number can fortunately gain access program. However, advantage also means that team has...

10.1155/2019/2694126 article EN cc-by Complexity 2019-01-01

Preeclampsia affects from 5% to 14% of all pregnant women and is responsible for about maternal deaths per year in the world. This paper focused on use a decision analysis tool early detection preeclampsia at risk. applies fuzzy linguistic approach implemented wearable device. In order develop this tool, real dataset containing data with high risk health center has been analyzed, methodology two main phases used. Firstly, transformation applied increase interpretability flexibility...

10.1155/2017/7838464 article EN cc-by Mobile Information Systems 2017-01-01

In this work, we detail a methodology based on Convolutional Neural Networks (CNNs) to detect falls from non-invasive thermal vision sensors. First, include an agile data collection label images in order create dataset that describes several cases of single and multiple occupancy. These standing inhabitants target situations with fallen inhabitant. Second, provide augmentation techniques increase the learning capabilities classification reduce configuration time. Third, have defined 3 types...

10.3390/proceedings2191236 article EN cc-by 2018-10-24

Fog Computing is an approach involving smart devices. These devices carry out data processing to provide collaborative services reach a common goal, usually, in the cloud. In fog computing paradigm, uncertainty and vagueness are inherent due limitations of compu tational communication capabilities Fuzzy logic protoforms represent powerful tool model compute imprecise presented within fog-computing paradigm. this paper, we present fuzzy cloud-fog based on temporal windows aggregation. The...

10.3233/jifs-179443 article EN Journal of Intelligent & Fuzzy Systems 2019-09-13

The classic models used to predict the behavior of photovoltaic systems, which are based on physical process solar cell, limited defining analytical equation obtain its electrical parameter. In this paper, we evaluate several machine learning nowcast and energy production a (PV) system in conjunction with ambient data provided by IoT environmental devices. We have evaluated estimation output power generation human-crafted features multiple temporal windows deep approaches comparative results...

10.3390/s20154224 article EN cc-by Sensors 2020-07-29

The recognition of activities daily living is an important research area interest in recent years. process activity aims to recognize the actions one or more people a smart environment, which set sensors has been deployed. Usually, all events produced during each are taken into account develop classification models. However, instant started unknown real environment. Therefore, only most usually used. In this paper, we use statistics determine appropriate length that interval for type...

10.3390/s18041202 article EN cc-by Sensors 2018-04-14

Nowadays, smart environments (SEs) enable the monitoring of people with physical disabilities by incorporating activity recognition. Thermal cameras are being incorporated as they preserve privacy. Some deep learning (DL) solutions use pose users because it removes external noise. Although there robust DL in visible spectrum (VS), fail thermal domain. Thus, we propose human lite (THPoseLite), a convolutional neural network (CNN) based on MobileNetV2 that extracts from images (TIs). In novel...

10.1109/jiot.2023.3264215 article EN IEEE Internet of Things Journal 2023-04-03
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