RDF description Dr. Iván Pretel

Research Associate


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Dec. 2008  -  Apr. 2017



[u" @article{zabaleta_designing_2019, title = {Designing a {Human} {Computation} {Framework} to {Enhance} {Citizen}-{Government} {Interaction}}, volume = {25}, url = {http://www.jucs.org/jucs_25_2/designing_a_human_computation}, abstract = {Human computation or Human-based computation (HBC) is a paradigm that considers the design and analysis of information processing systems in which humans participate as computational agents performing small tasks and being orchestrated by a computer system. In particular, humans perform small pieces of work and a computer system is in charge of orchestrating their results. In this work, we want to exploit this potential to improve the take-up of e-service usage by citizens interacting with governments. To that end, we propose Citizenpedia, a human computation framework aimed at fostering citizen's involvement in the public administration. Citizenpedia is presented as a web application with two main components: the Question Answering Engine, where citizens and civil servants can post and solve doubts about e-services and public administration, and the Collaborative Procedure Designer, where citizens can collaborate with civil servants in the definition and improvement of new administrative procedures and e-services. In this work, we present the design and prototype of Citizenpedia and two evaluation studies conducted: the first one, a set of on-line surveys about the component's design, and the second one, a face-to-face user evaluation of the prototype. These evaluations showed us that the participants of the tests found the platform attractive, and pointed out several improvement suggestions regarding user experience of e-services.}, language = {en}, number = {2}, journal = {Journal of Universal Computer Science}, author = {Zabaleta, Koldo and Lopez-Novoa, Unai and Pretel, Ivan and L\xf3pez-de-Ipi\xf1a, Diego and Cartelli, Vincenzo}, year = {2019}, keywords = {Q3, e-government, human computation, human-computer interaction, jcr1.079, simpatico}, pages = {32} }"]

[u' @inproceedings{pretel_citizenpedia:_2017, address = {San Francisco, USA}, title = {Citizenpedia: {A} {Human} {Computation} {Framework} for the e-{Government} {Domain}}, doi = {978-1-5386-0435-9/17/$31.00}, abstract = {Human computation relies on crowds of people to perform large workloads, and in this work, we want to exploit this potential to improve the experience of e-government and the use of e-services. To that end we present the Citizenpedia, a human computation framework aimed at fostering citizens involvement in the public administration. The Citizenpedia is presented as a web application with two main tools: the Question Answering Engine, where citizens and civil servants can post and solve doubts about e-services and public ad- ministration, and the Collaborative Procedure Designer, where citizens can collaborate with civil servants in the definition and improvement of new administrative procedures and e-services. In this work we present several contributions: first, the design of the Citizenpedia concept, and then, its evaluation through a set of online surveys that were filled by 152 citizens and 63 civil servants from three different countries. The surveys served to successfully validate our design, and also to provide feedback on new features that were not taken into account in the first place. We finally present the software architecture of the Citizenpedia and provide the link to its source code.}, language = {English}, booktitle = {{IEEE} {SmartWorld} 2017}, publisher = {IEEE}, author = {Pretel, Ivan and Lopez-Novoa, Unai and Sanz, Enrique and L\xf3pez-de-Ipi\xf1a, Diego and Cartelli, Vincenzo and Di Modica, Giuseppe and Tomarchio, Orazio}, month = aug, year = {2017}, pages = {1013--1018} }']

[u' @inproceedings{curiel_interfaz_2014, address = {Barcelona, Spain}, title = {Interfaz orientada a la persona: acceso transparente a servicios de comunicaci\xf3n interpersonal}, volume = {1}, isbn = {978-989-98434-3-1}, abstract = {Las nuevas herramientas de comunicaci\xf3n e interacci\xf3n social, como las redes sociales, no est\xe1n dise\xf1adas teniendo en cuenta a colectivos con bajos conocimientos tecnol\xf3gicos y dificultades de interacci\xf3n como el sector de la tercera edad. Esto deriva en un indeseado aumento de la brecha digital y del nivel de aislamiento de estos colectivos. Por ello, en este trabajo proponemos la plataforma HiSozial, que haciendo uso de interfaces orientadas a la persona, encapsulamiento de servicios, combinaci\xf3n de diversas tecnolog\xedas de interacci\xf3n y personalizaci\xf3n pretende hacer accesible estas herramientas a los mencionados colectivos. Asimismo, presentamos la evaluaci\xf3n realizada para demostrar la validez de nuestra propuesta, incluyendo un estudio comparativo con dos aplicaciones no orientadas a colectivos con dificultades de interacci\xf3n.}, booktitle = {Actas de la 9\xaa {Conferencia} {Ib\xe9rica} de {Sistemas} y {Tecnolog\xedas} de {Informacion}}, author = {Curiel, Pablo and Pretel, Iv\xe1n and Lago, Ana B.}, year = {2014}, note = {00000}, keywords = {ISI, Mobile devices, android, elderly, hci, hisozial, java, social networks}, pages = {536--542} }']

[u' @inproceedings{pretel_evaluacion_2014, address = {Barcelona, Spain}, title = {Evaluaci\xf3n remota de aplicaciones m\xf3viles h\xedbridas: nueva aproximaci\xf3n en entornos reales}, volume = {1}, isbn = {978-989-98434-3-1}, abstract = {Dentro del campo de la investigaci\xf3n en usabilidad, los dispositivos m\xf3viles han cobrado especial fuerza. Este tipo de dispositivos han mejorado sus propiedades exponencialmente dot\xe1ndose de capacidades de trabajo dignas de un ordenador personal y de peque\xf1os sensores que enriquecen las aplicaciones. Por el contrario, el desarrollo del campo de usabilidad para este tipo de aplicaciones y dispositivos no ha avanzado a un nivel acorde. Aunque existen varios est\xe1ndares y metodolog\xedas de evaluaci\xf3n, no existe una herramienta de evaluaci\xf3n remota espec\xedfica para entornos de contextos din\xe1micos, muy caracter\xedsticos de este tipo de dispositivos. Por ello, se expone mediante este trabajo una plataforma de evaluaci\xf3n remota que registra las propiedades del contexto en uso mediante el mismo dispositivo. Asimismo se presenta una evaluaci\xf3n preliminar realizada con una aplicaci\xf3n m\xf3vil h\xedbrida real donde se estudia el bajo nivel de influencia de la plataforma dentro de la interacci\xf3n.}, booktitle = {Actas de la 9\xaa {Conferencia} {Ib\xe9rica} de {Sistemas} y {Tecnolog\xedas} de {Informacion}}, author = {Pretel, Iv\xe1n and Lago, Ana Bel\xe9n}, year = {2014}, note = {00000}, keywords = {ISI, assessment, context-awareness, hci, hybrid mobile applications, mobile services}, pages = {383--388} }']

[u' @incollection{rocha_behaviour_2013, series = {Advances in {Intelligent} {Systems} and {Computing}}, title = {The {Behaviour} {Assessment} {Model} for the {Analysis} and {Evaluation} of {Pervasive} {Services}}, volume = {206}, isbn = {978-3-642-36980-3}, url = {http://dx.doi.org/10.1007/978-3-642-36981-0_107}, abstract = {Several mobile acceptance models exist today that focus on user interface handling and usage frequency evaluation. Since mobile applications reach much deeper into everyday life, it is however important to better consider user behaviour for the service evaluation. In this paper we introduce the Behaviour Assessment Model (BAM), which is designed to gaining insights about how well services enable, enhance and replace human activities. More specifically, the basic columns of the evaluation framework concentrate on (1) service actuation in relation to the current user context, (2) the balance between service usage effort and benefit, and (3) the degree to which community knowledge can be exploited. The evaluation is guided by a process model that specifies individual steps of data capturing, aggregation, and final assessment. The BAM helps to gain stronger insights regarding characteristic usage hotspots, frequent usage patterns, and leveraging of networking effects showing more realistically the strengths and weaknesses of mobile services.}, booktitle = {Advances in {Information} {Systems} and {Technologies}}, publisher = {Springer Berlin Heidelberg}, author = {Klein, Bernhard and Pretel, Ivan and Reips, Ulf-Dietrich and Lago, Ana B. and Lopez-de-Ipi\xf1a, Diego}, editor = {Rocha, \xc1lvaro and Correia, Ana Maria and Wilson, Tom and Stroetmann, Karl A.}, year = {2013}, keywords = {human-computer interaction, living lab, log data analysis, mobile services, service design, technological acceptance model, user acceptance}, pages = {1129--1140} }']

[u' @article{klein_analysis_2013, title = {Analysis of {Log} {File} {Data} to {Understand} {Mobile} {Service} {Context} and {Usage} {Patterns}}, volume = {2}, issn = {1989-1660}, url = {http://www.ijimai.org/journal/sites/default/files/files/2013/06/ijimai20132_3_2_pdf_26595.pdf}, doi = {10.9781/ijimai.2013.232}, abstract = {Several mobile acceptance models exist today that focus on user interface handling and usage frequency evaluation. Since mobile applications reach much deeper into everyday life, it is however important to better consider user behaviour for the service evaluation. In this paper we introduce the Behaviour Assessment Model (BAM), which is designed to gaining insights about how well services enable, enhance and replace human activities. More specifically, the basic columns of the evaluation framework concentrate on (1) service actuation in relation to the current user context, (2) the balance between service usage effort and benefit, and (3) the degree to which community knowledge can be exploited. The evaluation is guided by a process model that specifies individual steps of data capturing, aggregation, and final assessment. The BAM helps to gain stronger insights regarding characteristic usage hotspots, frequent usage patterns, and leveraging of networking effects showing more realistically the strengths and weaknesses of mobile services}, number = {3}, journal = {International Journal of Interactive Multimedia and Artificial Intelligence}, author = {Klein, Bernhard and Pretel, Ivan and Vanhecke, Sacha and Lago, Ana B. and Lopez-de-Ipi\xf1a, Diego}, month = sep, year = {2013}, keywords = {Analysis, hci, mobile services}, pages = {15--22} }']

[u' @inproceedings{curiel_simplenfc:_2013, address = {Lisbon, Portugal}, title = {{SimpleNFC}: {Simplificaci\xf3n} del acceso a servicios del mundo digital mediante {NFC}}, volume = {1}, isbn = {978-989-96247-9-5}, abstract = {Como consecuencia de los destacables avances en las tecnolog\xedas y soluciones en movilidad en los \xfaltimos a\xf1os, el tel\xe9fono m\xf3vil se ha convertido en un dispositivo casi indispensable en el d\xeda a d\xeda y que posibilita el acceso a un gran abanico de servicios. El problema surge en la interacci\xf3n con este tipo de dispositivos. As\xed, aunque la mayor parte de la poblaci\xf3n es capaz de trabajar con estos, algunos colectivos como las personas mayores, presentan grandes dificultades para ello. Para reducir la brecha digital existente para este colectivo proponemos una plataforma que hace uso de Near Field Communication (NFC) y tecnolog\xedas sem\xe1nticas. El objetivo de la misma es prestar distintos servicios al usuario a partir de la lectura de una combinaci\xf3n de etiquetas con un tel\xe9fono m\xf3vil, haciendo la interacci\xf3n con este tipo de dispositivos m\xe1s f\xe1cil y amigable.}, booktitle = {Atas da 8\xaa {Confer\xeancia} {Ib\xe9rica} de {Sistemas} e {Tecnologias} de {Informac\xe3o}}, author = {Curiel, Pablo and Zabaleta, Koldo and Pretel, Iv\xe1n and Lago, Ana B.}, year = {2013}, keywords = {ISI, Mobile devices, android, java, jena, lagunfc, nfc, reasoning, semantic technologies, social networks}, pages = {364--369} }']

[u' @inproceedings{pretel_sistema_2013, address = {Lisboa}, title = {Sistema de evaluaci\xf3n de la efectividad del usuario sensible al contexto para aplicaciones m\xf3viles}, isbn = {978-989-96247-9-5}, booktitle = {{CISTI} 2013: 8\xaa {Conferencia} {Ib\xe9rica} de {Sistemas} y {Tecnolog\xedas} de {Informaci\xf3n}. {Evento} de la {IEEE}}, author = {Pretel, Iv\xe1n and Lago, Ana B}, month = jun, year = {2013}, keywords = {ISI, context-aware, efficiency, mobile services, usability testing} }']

[u' @inproceedings{lago_integration_2013, address = {Orlando, Florida USA}, title = {Integration of {Traditional} and {Emerging} {Technologies} in the {Education} {Sector}}, abstract = {The constant evolution that the Internet and Communication Technologies (ICTs) have suffered in recent years, has allowed the creation and improvement of more productive sectors. Education sector has been one of the sectors which most increase has had due to ICTs. Unfortunately, ICTs have been designed and deployed to change drastically the learning methodologies. One of the reasons for this reality is the several technology plans promoted by the governments. The main objectives of this kind of plans are to provide ICT resources to students and schools, ensuring Internet connectivity within the classroom and to promote the access to digital educational materials. Moreover, the technological gap is the main problem to solve in this area. Lecturers, teachers and students have to learn a lot of tools to have better experience inside the educational environments. We show by this work a platform based on digital pens integrated with one Learning Management System to minimize the technological gap by using devices that are everyday used.}, author = {Lago, Ana B. and Pretel, Ivan and Zabaleta, Koldo}, year = {2013} }']

[u' @incollection{collazos_effectiveness_2013, series = {Lecture {Notes} in {Computer} {Science}}, title = {Effectiveness {Measurement} {Framework} for {Field}-{Based} {Experiments} {Focused} on {Android} {Devices}}, volume = {8278}, isbn = {978-3-319-03067-8 978-3-319-03068-5}, url = {http://dx.doi.org/10.1007/978-3-319-03068-5_21}, abstract = {Most of the mobile phones have turned into full-connected devices. This provides companies with a perfect channel to interact with their potential clients and employees. The quality of the experience with these applications can directly affect the profits of the company it represents. Focusing on the mobile field and its extremely dynamic context, the quality of the experience can highly fluctuate. Inside this field, several methods and tools have been developed by defining a context of use. However, current methods can only capture it through adding external capture tools (added cameras, human observers...) that can change the experience. The main contribution in this article is a new approach to automatically measure effectiveness through a tiny but powerful mobile tool that can capture interaction metrics and the surrounding context without biasing the measured experience.}, booktitle = {Human {Computer} {Interaction}}, publisher = {Springer International Publishing}, author = {Pretel, Ivan and Lago, Ana B.}, editor = {Collazos, C\xe9sar and Liborio, Andr\xe9ia and Rusu, Cristian}, year = {2013}, keywords = {Mobile HCI, context, effectiveness, evaluation, framework, mobile services, quality, usability}, pages = {123--130} }']

[u' @article{lago_e-learning_2013, title = {An {E}-{Learning} {Platform} for {Integrated} {Management} of {Documents} {Based} on {Automatic} {Digitization}}, volume = {8}, issn = {1932-8540}, doi = {10.1109/RITA.2013.2258230}, number = {2}, journal = {Tecnologias del Aprendizaje, IEEE Revista Iberoamericana de}, author = {Lago, Ana B. and Pretel, Ivan}, year = {2013}, pages = {48--55} }']

[u' @article{pretel_mobile_2012, title = {Mobile {Interaction} {Capturing} {System} in {Real} {Environments}}, volume = {8}, issn = {1934-7332}, abstract = {Mobile applications are being used in a great range of fields and application areas. As a result, many research fields have focused on the study and improvement of such devices. The current Smartphones are the best example of the research and the evolution of these technologies. Moreover, the software design and development is progressively more focused on the user; finding and developing new mobile interaction models. In order to do so, knowing what kind of problems the users could have is vital to enhance a bad interaction design. Unfortunately, a good software quality evaluation takes more time than the companies can invest. The contribution revealed in this work is a new approach to quality testing methodology focused on mobile interactions and their context in use where external capturing tools, such as cameras, are suppressed and the evaluation environments are the same as the user will use the application. By this approach, the interactions can be captured without changing the context and consequently, the data will be more accurate, enabling the evaluation of the quality-in-use in real environments.}, journal = {Computer Technology and Application}, author = {Pretel, Ivan and Lago, Ana B.}, year = {2012}, keywords = {context-awareness, hci, mobile applications, quality in use}, pages = {533--543} }']

[u' @incollection{pretel_mobile-human_2012, title = {Mobile-{Human} {Interaction} {Monitoring} {System}}, volume = {81}, isbn = {978-3-642-29478-5}, abstract = {Information and Knowledge Society is involved into a more challenging phenomenon than ever. The ability of mobile devices to access information and services from anywhere and anytime is the main reason that empowers the massive usage of this kind of technology. Software quality has to be improved by developing mobile device interaction models according to the user necessities. These necessities have more kind of users than ever. It means the quality in use improvement is vital to the interaction. By this work we aim to give a more explicit point of view of the problems that appear during mobile application quality testing. In order to do so, we have studied a context model for mobile interaction design and the existing ways to capture, analyze and evaluate the user interaction. Finally we present one software solution consisted by a tiny mobile application and a desktop application. The exposed system can capture all necessary information to calculate quality in use metrics defined within ISO/IEC 9126 standard. The contribution revealed is a new approach to quality testing methodology focused on mobile applications where it is possible to improve the reliability of its results by paying special attention to minimize the influence of external elements used to monitor the interaction.}, booktitle = {Mobile {Lightweight} {Wireless} {Systems}}, publisher = {Springer Berlin Heidelberg}, author = {Pretel, Ivan and Lago, Ana B.}, year = {2012}, keywords = {context-awareness, hci, mobile services, quality in use}, pages = {198--205} }']

[u' @article{lago_plataforma_2012, title = {Plataforma e-learning para la {Gesti\xf3n} {Integrada} de {Documentos} {Basada} en la {Digitalizaci\xf3n} {Autom\xe1tica}}, volume = {7}, issn = {1932-8540}, abstract = {Despite the advances in computing, traditional paper is still widely used in learning and knowledge work. Most current learning technologies do not account for this paper-centric practice and focus on a complete digitization of learning contents, activities, and communication. This paper presents an e-learning platform that combines work with printed and digital documents. It integrates pen-and-paper-based interaction techniques that enable users to manage their digitized documents. Moreover, this platform integrates different e-learning platforms providing a single intuitive interface to management them. Finally, a case study of the use of the platform in university education is presented.}, number = {3}, journal = {IEEE-RITA}, author = {Lago, Ana B. and Pretel, Ivan}, year = {2012}, pages = {141--148} }']

[u' @inproceedings{lago_enhancing_2011, address = {Madrid, Spain}, title = {Enhancing {User} {Experience} in {Virtual} {Learning} {Environments} with {Digital} {Pens}}, isbn = {978-84-615-3324-4}, abstract = {The exponential evolution that Information and Communication Technologies (ICT) have suffered the last years has been one of the reasons why all type of sectors as industrial or educational have improved their productivity. One of the disadvantages of this fast evolution is that not all users have been used to this new technologies, basically because the way of doing a task has drastically changed. This problem is known as \u201cincrease of the technological or digital gap\u201d. In order to reduce this technological gap we have designed, implemented and evaluated a new Virtual Learning Environment (VLE) based on digital pens. This solution consists of the integration of typical devices with a Learning Management System (LMS), concretely, Google Apps. A digital pen looks and feels like a normal ballpoint pen but thanks to it the handwriting can be captured, stored and sent by a safe way. In this case these data are sent to the LMS where students can manage and share notes by this platform and complete an existing document in the LMS with the digitalized information. The platform also offers a way to evaluate the students. Students can do several tests created by teachers previously. To carry out this activity, students will use a digital pen. Thus, the digitized information with the answers of the students will send to the platform where the tests are corrected immediately.}, booktitle = {{ICERI}2011 {Proceedings}}, author = {Lago, Ana B. and Pretel, Ivan and Zabaleta, Koldo}, year = {2011}, keywords = {digital pen, learning management systems, technological gap}, pages = {5563--5568} }']

[u' @inproceedings{pretel_eva:_2011, address = {Chaves, Portugal}, title = {{EVA}: {Collaborative} {Virtual} {Learning} {Environment} based on digital pens}, volume = {2}, isbn = {978-989-96247-5-7}, abstract = {Although day by day Information and Communication Technologies (ICT) are becoming increasingly important, the physical paper is widely used, especially in education. The majority of the technologies that are being implemented in education are ignoring this fact, digitizing every content and communication activities without considering the preferences of students. This article proposes a framework that integrates the use of physical paper with virtual learning environments to allow the creation and sharing of documents and conducting collaborative activities not only in class, but also remotely. It aims to demonstrate that the connection between the digital world and physical paper will contribute to the improvement of the productivity of students.}, language = {Spanish}, booktitle = {6th {Iberian} {Conference} on {Information} {Systems} and {Technologies} ({CISTI})}, author = {Pretel, Iv\xe1n and Lago, Ana B.}, year = {2011}, keywords = {Anoto, Virtual Learning Environment, digital pen, educational technology}, pages = {1 -- 4} }']

[u" @inproceedings{pretel_capturing_2011, address = {Lisbon, Portugal}, title = {Capturing {Mobile} {Devices} {Interactions} {Minimizing} the {External} {Influence}}, isbn = {978-1-61208-171-7}, abstract = {Mobile computing has become an integral part of everyday life for the new 'Information and Knowledge Society'. The new generation of mobile devices and their full connection capabilities enable users to access a wide choice of services and knowledge from everywhere. Owing to this tendency, access to these services has to be improved by developing mobile device interaction models according to the user necessities. According to the ISO/IEC 9126 standard, the quality in use exists inside the quality fields. This kind of quality measures how a product can satisfy the needs of a particular user to achieve specific goals in a specified context. By the revealed quality testing methods focused on mobile applications, it is going to demonstrate it is possible to decrease the external influence caused by the existing capturing tools. Therefore, the contribution revealed is a new approach to user interaction focused on mobile applications where it is possible to improve its results reliability capturing the quality in use and paying special attention to the context of use. In order to do so, we present a study about how to minimize the external influence capturing user interactions. We describe capture methods and existing monitoring systems and also one prototype in order to validate the proposed methodology. This work reveals it is possible to gather user interaction information in mobile environments without the need of any external capturing system.}, booktitle = {{UBICOMM} 2011, {The} {Fifth} {International} {Conference} on {Mobile} {Ubiquitous} {Computing}, {Systems}, {Services} and {Technologies}}, author = {Pretel, Ivan and Lago, Ana B.}, year = {2011}, keywords = {User Experience, core-c, hci, mobile services, monitoring, quality in use}, pages = {200--205} }"]

[u' @inproceedings{pretel_framework_2010, address = {Santiago de Compostela, Spain}, title = {Framework para la {Evaluaci\xf3n} de la {Calidad} en {Uso} de {Servicios} {M\xf3viles}}, volume = {2}, isbn = {978-989-96247-3-3}, abstract = {En un mundo cada vez m\xe1s competitivo, en el que el grado de exigencia y formaci\xf3n del usuario crece a medida que aumenta la oferta, las empresas de telecomunicaciones afrontan grandes desaf\xedos en el proceso de puesta en el mercado de sus productos. Para lograrlo, las empresas son cada vez m\xe1s conscientes de que no s\xf3lo hay que evaluar la calidad interna y externa del producto sino que tambi\xe9n es necesario evaluar la experiencia del usuario o calidad en uso frente al producto. En este art\xedculo se propone un framework para la medida y evaluaci\xf3n de la calidad en uso basada en el est\xe1ndar ISO/IEC 9126-4. La evaluaci\xf3n se basa en cuatro caracter\xedsticas: efectividad, productividad, seguridad y satisfacci\xf3n. Se pretende demostrar que es posible agilizar la evaluaci\xf3n de la calidad en uso de servicios m\xf3viles mediante la automatizaci\xf3n de la captura y an\xe1lisis de la calidad en uso.}, language = {Spanish}, booktitle = {5th {Iberian} {Conference} on {Information} {Systems} and {Technologies} ({CISTI})}, author = {Pretel, Iv\xe1n and Lago, Ana B.}, year = {2010}, keywords = {ISO/IEC 9126, calidad en uso, evaluaci\xf3n, experiencia del usuario, servicios m\xf3viles} }']