Antoni Pérez-Navarro

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• phD in Physics
• Senior Professor at Universitat Oberta de Catalunya

BACKGROUND Despite a lack of evidence relating to effectiveness and safety, the use of apps in the field of mental health is increasing due to their ease of use and accessibility. The aim of the EvalDepApps project is to develop and validate an assessment tool for evaluating depression management apps based on scientific evidence, expert judgment,...

Introduction The use of apps represents a revolution in mental health. Fast, versatile, and manageable, mHealth apps allow empowerment of patients and professionals and can even reduce stigmatization. There is not yet a standardized method to assess their effectiveness and safety. The objective of the EvalDepApps project is to develop an assessment...

Background: Chronic neck and low back pain are very common and have detrimental effects for people and the society. In this study, we explore the experiences of individuals with neck and/or back pain using a written narrative methodology. Material and Methods: 92 individuals explained their pain experience using written narratives. Narratives were...

This study unveils a mobile app-based Indoor Positioning System (IPS) tailored for seamless museum navigation. Leveraging smartphone Inertial Measurement Unit (IMU) sensors, it incorporates a Pedestrian Dead Reckoning (PDR) algorithm and a Visible Light Positioning (VLP) beacon-based Angle of Arrival (AoA) algorithm for precise user positioning rel...

Indoor positioning is a thriving research area which is slowly gaining market momentum. Its applications are mostly customised, ad hoc installations; ubiquitous applications analogous to GNSS for outdoors are not available because of the lack of generic platforms, widely accepted standards and interoperability protocols. In this context, the Indoor...

Background Depression is a significant public health issue that can lead to considerable disability and reduced quality of life. With the rise of technology, mobile health (mHealth) interventions, particularly smartphone apps, are emerging as a promising approach for addressing depression. However, the lack of standardized evaluation tools and evid...

Indoor Positioning Systems usually consider the average positioning error over a set of evaluation samples, or a quartile of that value, as the global error. However, they do not provide a metric for the uncertainty for each individual position estimation. In this paper, we apply the error propagation theory to the kNN algorithm in Wi-Fi fingerprin...

Main features of fingerprinting datasets in https://zenodo.org/record/7599736

BACKGROUND Depression is a significant public health issue that can lead to considerable disability and reduced quality of life. With the rise of technology, mobile health (mHealth) interventions, particularly smartphone apps, are emerging as a promising approach for addressing depression. However, the lack of standardized evaluation tools and evid...

E-learning research is a dynamic and ever-expanding interdisciplinary field. Research in this area is often conducted at the intersection of social science, cognitive science, learning sciences, as well as engineering and computer science. Common concerns in the field include ambiguity and confusion toward how best to approach methodological design...

Locating devices in indoor environments has become a key issue for many emerging location-based applications and intelligent spaces in different fields [...]

Background Adolescent pregnancies and sexually-transmitted infections continue to impact 15 – 19-year-olds across the globe. The lack of sexual reproductive health information (SRH) in resource-limited settings due to cultural and societal attitudes towards adolescent SRH could be contributing to the negative outcomes. Innovative approaches, includ...

Videos created with the hands of teachers filmed have been perceived as useful educational resource for students of Physics in undergraduate courses. In previous works, we analyzed the students’ perception about educational videos by asking them about their experiences. In this work, we analyze the same facts, but from a learning analytics perspect...

Nowadays, there are a multitude of solutions for indoor positioning, as opposed to standards for outdoor positioning such as GPS. Among the different existing studies on indoor positioning, the use of Wi-Fi signals together with Machine Learning algorithms is one of the most important, as it takes advantage of the current deployment of Wi-Fi networ...

Background: Adolescents transitioning from childhood to adulthood need to be equipped with sexual reproductive health (SRH) knowledge, skills, attitudes, and values that empower them. Accessible, reliable, appropriate, and friendly information can be provided through mobile phone-based health interventions.

Background Adolescent pregnancies and sexually-transmitted infections continue to impact 15–19-year-olds across the globe. The lack of sexual reproductive health information in resource-limited settings can often be due to cultural and societal attitudes to adolescent sexual reproductive health. Innovative approaches, including mobile phone technol...

The pandemic situation has driven to several measures to prevent the spread of COVID-19. One of these measures is social distance and, as a consequence, limitation of capacity of indoor closed spaces. This makes necessary the deployment of systems that help to control occupancy of spaces. This work proposes a low-cost system to control access to an...

Currently there is no standard indoor positioning system, similar to outdoor GPS. However, WiFi signals have been used in a large number of proposals to achieve the above positioning, many of which use machine learning to do so. But what are the most commonly used techniques in machine learning? What accuracy do they achieve? Where have they been t...

BACKGROUND : Adolescents transitioning from childhood to adulthood need to be equipped with sexual reproductive health (SRH) knowledge, skills, attitudes, and values that empower them. Accessible, reliable, appropriate, and friendly information can be provided through mobile phone-based health interventions. OBJECTIVE This study will investigate t...

Background: Adolescents transitioning from childhood to adulthood need to be equipped with sexual reproductive health (SRH) knowledge, skills, attitudes, and values that empower them. Accessible, reliable, appropriate, and friendly information can be provided through mobile phone-based health interventions. Objective: This study aims to investig...

Every year, for ten years now, the IPIN competition has aimed at evaluating real-world indoor localisation systems by testing them in a realistic environment, with realistic movement, using the EvAAL framework. The competition provided a unique overview of the state-of-the-art of systems, technologies, and methods for indoor positioning and navigat...

Every year, for ten years now, the IPIN competition has aimed at evaluating real-world indoor localisation systems by testing them in a realistic environment, with realistic movement, using the EvAAL framework. The competition provided a unique overview of the state-of-the-art of systems, technologies, and methods for indoor positioning and navigat...

Purpose The prevalence of pregnancy and sexually transmitted infections among adolescents in low and middle-income countries leads us to believe that sexual and reproductive health (SRH) information needs are still unmet. This paper investigates current sources and their limitations and then explores the role technology could play. Methods: In an e...

BACKGROUND Adolescent pregnancies and sexually-transmitted infections continue to impact 15 – 19-year-olds across the globe. The lack of sexual reproductive health information in resource-limited settings can often be due to cultural and societal attitudes to adolescent sexual reproductive health. Innovative approaches, including mobile phone techn...

Featured Application This works can help to choose the better and more efficient videos for professors of Physics courses. Abstract Digital videos have an important and increasing presence in student learning. They play a key role especially in subjects with high mathematical content, such as physics. However, creating videos is a time-consuming a...

Digital videos have an important (and increasing) presence in learning processes, especially within online universities and schools. However, creating videos is a time-consuming activity for teachers, who are usually not expert in video creation. Therefore, it is important to know which kind of video is perceived as more satisfactory and useful by...

This package contains the datasets and supplementary materials used in the IPIN 2020 Competition.

A major operational task in city logistics is related to waste collection. Due to large problem sizes and numerous constraints, the optimization of real-life waste collection problems on a daily basis requires the use of metaheuristic solving frameworks to generate near-optimal collection routes in low computation times. This paper presents a simhe...

IPIN 2019 Competition, sixth in a series of IPIN competitions, was held at the CNR Research Area of Pisa (IT), integrated into the program of the IPIN 2019 Conference. It included two on-site real-time Tracks and three off-site Tracks. The four Tracks presented in this paper were set in the same environment, made of two buildings close together for...

Background: Advances in the development of information and communication technologies have facilitated social and sexual interrelationships, thanks to the websites and apps created to this end. However, these resources can also encourage sexual contacts without appropriate preventive measures in relation to HIV and other sexually transmitted infect...

Introduction eHealth is a new approach for managing several health conditions, but up to now not so many interventions have shown their efficacy/effectiveness. The AUTAPP Project tries to add knowledge in eHealth interventions targeted to Mental Health disorders, specifically Autism Spectrum Disorder (ASD) management that requires complex intervent...

With the adoption of indoor positioning solutions, which enable for a variety of location-based spatial services, a number of indoor map standards and formats have been proposed in the last decade. As each of these indoor map standard has its own purpose, the strengths and weaknesses are necessary to be understood and analyzed before selecting one...

Datasets for the 2019 IPIN Competition Track 3. https://zenodo.org/record/3606765

The Indoor Positioning and Indoor Navigation (IPIN) conference holds an annual competition in which indoor localization systems from different research groups worldwide are evaluated empirically. The objective of this competition is to establish a systematic evaluation methodology with rigorous metrics both for real-time (on-site) and post-processi...

Introduction: Management of Autism Spectrum Disorder (ASD) requires complex and integrated interventions, usually tailored for each individual due to the wide variety of symptoms that people diagnosed with ASD present. Some of these interventions could be a combination of psychosocial interventions addressed to the management of emotions, the impro...

BACKGROUND Advances in the development of information and communication technologies have facilitated social and sexual interrelationships thanks to websites and Apps created to this end. However, these resources can also encourage sexual contacts without appropriate preventive measures in relation to HIV and other sexually transmitted infections (...

The symposium “Challenges of Fingerprinting in Indoor Positioning and Navigation” took place at Barcelona (Spain) on May 3rd and 4th, 2016. The audience comprised academic, scientists, engineers, company representatives, and institutional members. The program offered reports on the state of the art for indoor positioning based on fingerprinting, as...

Geographical and Fingerprinting Data for Positioning and Navigation Systems: Challenges, Experiences and Technology Roadmap explores the state-of-the-art software tools and innovative strategies to provide a better understanding of positioning and navigation in indoor environments using fingerprinting techniques. The book provides the different pro...

This package contains the datasets and supplementary materials used in the IPIN 2018 Competition (Nantes, France) for the Track 3.

The development of indoor positioning solutions using smartphones is a growing activity with an enormous potential for everyday life and professional applications. The research activities on this topic concentrate on the development of new positioning solutions that are tested in specific environments under their own evaluation metrics. To explore...

The research presented in this paper is focused on In-home positioning systems. These indoor environments are characterized by a reduced number of AP, narrow spaces and very important radio signal attenuation. Existing indoor techniques seems to be not totally suitable for these scenarios; this paper proposes an add-on for helping these techniques...

Excessive weight and obesity are worldwide problems that are related to a variety of health issues. Several methods have been utilized recently to educate people and communities about topics related to nutrition behaviors. How can we develop educational mechanisms for healthy behaviors, focusing on a target group and their context? To reply to this...

Advances in the development of information and communication technologies have facilitated social interrelationships, but also sexual contacts without appropriate preventive measures. In this paper, we will focus on situations in which people use applications to meet sexual partners nearby, which could increase their chance of exposure to sexually...

Video is a support that is every day more used not only as entertainment but also as a pedagogical resource at any level. On the other hand, video video has become a common way of interacting with internet and each other. Thus, video is nowadays a powerful tool for e-learning students. However, one of the main drawbacks of video versus text documen...

Resumen Dado el proceso de convergencia europea en el ámbito universitario, las universidades están adaptando tanto los planes de estudio y las metodologías docentes como las técnicas aplicadas a la evaluación para orientarse a unas titulaciones basadas en competencias. Esta transformación ha dado paso a la formulación de actividades educativas que...

Location-based applications require knowing the user position constantly in order to find out and provide information about user's context. They use GPS signals to locate users, but unfortunately GPS location systems do not work in indoor environments. Therefore, there is a need of new methods that calculate the location of users in indoor environm...

Smartphones are nowadays a common device with millions of users around the world. They can execute thousands of applications that support any interest of users: productivity, mail access, internet navigation, entertainment, tourism, etc. These applications transform the experience of using a smartphone to something similar to use a pocket extension...

The new model of University bets not only by expertise but also by the development of skills or abilities that students should acquire. In this work is proposed that students work and put together the knowledge acquired independently in a working group that supports and enhances collaborative learning based on experience. They have to awaken their...

In order to make improvements to teaching, it is vital to know what students think of the way they are taught. With that purpose in mind, exhaustively analyzing the forums associated with the subjects taught at the Universitat Oberta de Cataluya (UOC) would be extremely helpful, as the university's students often post comments on their learning exp...

Guía dirigida a aquellos docentes que quieren diseñar el trabajo final de una programa de máster que se desarrolle en un entorno virtual de aprendizaje.

At the end of their technical studies, students have to present a final project in order to finish their degree. With this project, students prove that they have got all of the competences they should have acquired. Some competencies, such as the ability to communicate orally or the ability to argue may be evaluated during a face-to-face dissertati...

Several applications that support users when doing tourism have appeared during the last years. These applications, though popular, have not become a reliable and dependable tourist assistant because they offer little personalization, which eventually may overwhelm users with too much information. An effective mobile application should store touris...

With the advent of GPS and the spread of smart phones (iPhone, Android, etc.) have proliferated applications dealing with geographic information. Many of these applications are beginning to provide semantic information through: 1) the classification of tourist attractions in categories (thesauri tourism categories Open Street Map, etc.), and 2) the...

The emergence of smart phones increasingly powerful opens a new range of possibilities in terms of uses and applications. However, given its limited memory and CPU, some potential applications are very difficult or even impossible to implement. This is the case, for example, in a route calculation application. In the context of Itiner@ project, whi...

Health professionals and authorities strive to cope with heterogeneous data, services, and statistical models to support decision making on public health. Sophisticated analysis and distributed processing capabilities over geocoded epidemiological data are seen as driving factors to speed up control and decision making in these health risk situatio...

Communication is a key issue in the student learning process. In mathematics education, it is essential to overcome specific difficulties such as the learning of abstract concepts and its language of expression and communication; mathematical notation. At the Open University of Catalonia (UOC), students face the challenge in a somewhat "handicapped...

Segur que molts de vosaltres heu hagut de gestionar un projecte, segur que l'heu hagut de reflectir en un document, i possiblement heu hagut de fer una presentació per a una audiència explicant aquest projecte. I tot això no ho heu hagut de fer només en els vostres estudis, sinó també en la vostra vida professional. Aquests són, precisament, els tr...

In the context of engineering studies, Virtual Laboratories (VL) are one of the most mentioned learning tools. However, opinions on what different authors consider a virtual laboratory lead us to very disparate interpretations, with the consequent lack of consensus. In this work we focus on VL applied to e-learning in technical studies. The state-o...

The use of Information and Communication Technologies (ICT) in education has widened the range of learning possibilities and provides the required technological support to create a new learning environment. This paper focuses on the description of an improved educational environment based on a system of data visualization and a geographical informa...

Students of mathematics have many problems in their process of learning and, it is most likely that Mathematical language is the principal cause of it. Specific terms and notation can be very hard for most of them. In distance learning environments, the problem is especially significant. Being aware of this situation, the engineering studies depart...

En este documento se analizan los conceptos clave relacionados con el software libre: ¿qué es el software libre? ¿qué es el software propietario? ¿qué es el software gratuito? ¿qué es una licencia copyleft? A continuación se muestra cómo las aplicaciones horizontales libres se desarrollan de forma distinta a las verticales libres, entre las que se...

This article covers some of the principal legal aspects of free and open software applied to Geographic Information Systems. Starting out form basic concepts in FOSS licensing, it aims to deal with questions such as "who is responsible for FOSS projects'", "how are they developed?", "who is the owner of the software?" and discusses the legal issues...

Segur que molts de vosaltres heu hagut de gestionar un projecte, segur que l'heu hagut de reflectir en un document, i possiblement heu hagut de fer una presentació per a una audiència explicant aquest projecte. I tot això no ho heu hagut de fer només en els vostres estudis, sinó també en la vostra vida professional. Aquests són, precisament, els tr...