David Roldán-Álvarez, Estefanía Martín, Manuel García-Herranz, Pablo A. Haya
International Journal of Human-Computer Studies. 4 Jun 2016, pp. 18-34, doi:10.1016/j.ijhcs.2016.04.011 [download] (JCR, IF 2016: 2.863, Q1 5/22 Computer science, cybernetics)
- We study the learnability of educational authoring tools for preventing teachers’ rejection or abandonment.
- We evaluate two interaction paradigms of authoring educational tools: menu-based versus direct-manipulation.
- The interaction paradigm of the authoring tool has an important impact on the tool’s learning curve’s entry point.
- A consistent interaction metaphor allows teachers creating educational activities smooth and fast.
Few teachers include information and communication technology in the classroom, despite their potential for increasing attention and motivation for students. Educational authoring tools are intended to turn teachers into designers and deliverers of technology-enhanced educational content, and increasing the adoption of these tools is a key element for speeding up this transformation. This paper emphasizes the importance of learnability for preventing rejection or abandonment by of such an authoring tool, and how acceptance is deeply affected by the interaction paradigm and the creation metaphor used in the tool. We present an analysis comparing two design paradigms: the widespread menu-based and choice-guided interaction paradigm versus a consistent metaphor with direct manipulation. The latter was implemented in DEDOS-Editor, a novel authoring tool that allows the creation of diverse educational activities that can be performed on different devices, such as PCs, digital blackboards, tablets, and multitouch surfaces. An experimental study shows the tremendous impact that interface choices have on the tool’s learning curve. The results provide the first mapping of the choice of a direct-manipulation interface and its effect on the learning curve’s entry point, as well as a consistent interaction metaphor with smoother and fast-growing learning curves. This allows users to complete more tasks and gain more knowledge through experience, in contrast to menu-based interfaces. The initial use of the tool is thus made easier for users with no experience or information about the tool, and the advantages of experience and expertise in facing new challenges are facilitating. This work also highlights the appropriateness of learning curves as a tool for measuring learnability.
Acaba de publicarse en Bubok el Libro Colaborativo del Foro CI organizado por Alcor “Conectar negocio y personas: experiencias y tendencias en CI” en el que tengo una artículo conjunto con Ana Jusdado titulado “Aplicación del Análisis de Redes Sociales (ARS) a procesos colaborativos innovadores“.
Podéis consultar los detalles en la web del Foro de CI (www.foroci.com). El libro se puede adquirir tanto en versión digital como en versión papel así como los videos y materiales de trabajo del mismo.
El próximo día 22 de octubre se presenta a las 9,00 en ESADE Madrid en el evento de DIRCOM.
Esfefanía Martín, Manuel Gértrudix, Jaime Urquiza, Pablo A. Haya,
British Journal of Educational Technology. Article first published online: 20 JUL 2015 (2015) DOI: 10.1111/bjet.12318 [download] (JCR, IF 2014: 1.394, Q1)
This paper describes two datasets extracted from a video-based educational experience using a social and collaborative platform. The length of the trial was 3 months. It involved 111 students from two different courses. Twenty-nine came from Computer Engineering (CE) course and 82 from Media and Communication (M&C) course. They were organised into nine interdisciplinary groups. Each group included three or four CE students and eight or nine M&C students. An additional group filmed the making of. This group has only M&C students. Four teachers supervised the trial. The total number of meaningful events was 2984.
Anonymized version of the activity dataset and profile dataset are publicly available.
Abraham Esquivel, Pablo A. Haya and Xavier Alamán. Sensor 15(6), 14207-14229 (2015) doi:10.3390/s150614207 [download] (JCR, IF 2014: 2.093, Q1)
This paper presents a proof of concept from which the metaphor of “fair trade” is validated as an alternative to manage the private information of users. Our privacy solution deals with user’s privacy as a tradable good for obtaining environmental services. Thus, users gain access to more valuable services as they share more personal information. This strategy, combined with optimistic access control and transaction registry mechanisms, enhances users’ confidence in the system while encouraging them to share their information, with the consequent benefit for the community. The study results are promising considering the user responses regarding the usefulness, ease of use, information classification and perception of control with the mechanisms proposed by the metaphor.
Estefanía Martín, Isidoro Hernán and Pablo A. Haya New Review of Hypermedia and Multimedia Vol. 21, No. 3, 1–22, (2015) doi: 10.1080/13614568.2015.1027966 [download] (JCR, IF 2015: 0.533, Q4)
In the educational context there is an increasing interest in learning networks. Recommendation systems can play an important role in achieving the educational objectives. Although we can find many papers focused on recommendation techniques and algorithms however, less attention has been dedicated to social factors that influence the recommendation process. This process could be improved if we had a deeper understanding of the social factors that influence the quality or goodness of a suggestion made by the recommendation system. This work elucidates and analyses the social factors that influence the design and decision making process of recommender systems. We conducted a survey where 126 undergraduate students were asked to extract are the main factors for improving suggestions when they are interacting with an Online Social Network (OSN) or in an Educational Social Network (ESN). The results show that different factors have to be considered depending on the type of the network.
Pablo A. Haya, Oliver Daems, Nils Malzahn, Jorge Castellanos and Heinz Ulrich Hoppe
British Journal of Educational Technology. Article first published online: 3 MAR 2015 (2015) DOI: 10.1111/bjet.12264 [download] (JCR, IF 2014: 1.394, Q1)
Learning Analytics constitutes a key tool for supporting Learning Design and teacher-led inquiry into student learning. In this paper, we demonstrate how a Social Learning Analytics toolkit can combine social network analysis and content analysis for supporting a global and formal teacher inquiry. This toolkit not only supports teachers in improving the organisation of the learning process but also generates important input to improve the students’ reflection on their own learning. Our examples show how combinations of different levels of analysis can provide deep insight in the learning process. We report a case study that exemplifies the main features of our approach and the kind of outcomes that can be obtained. Commenting and rating processes on videos are analysed based on user traces from a social learning platform. Finally, we point out implications on the learning design for networked learning environments in general.
David Aguado, Pablo A. Haya, Alvaro Barbero
Observatorio de Recursos Humanos 98 (2015) [download]
Los gestores de RR.HH. han declarado explícitamente su interés por el Big Data. A pesar de ello, a día de hoy, no es fácil encontrar en nuestro país proyectos de Big Data ejecutados en el negocio de la gestión de Recursos Humanos. Este artículo pretende ayudar al gestor de RR.HH. a entender qué es el Big Data y cómo puede ponerlo al servicio de su negocio, ofreciéndole una visión específica de cómo se define y cuáles son sus características principales, las aplicaciones desarrolladas hasta la fecha en este sector y las dificultades y retos principales a la hora de implantar modelos Big Data en la gestión de Recursos Humanos.
Leila S. Shafti, Pablo A. Haya, Manuel García-Herranz, Eduardo Pérez
Journal of Ambient Intelligence and Smart Environments 5 (6), 563-587 (2013) [download] (JCR, IF 2012: 1.298, Q2)
One of the goals in Ambient Intelligence is to enable Intelligent Environments to take decisions based on the perceived context. In our previous work, we successfully explored how the inhabitants can communicate their own preferences with the environment using Event-Condition-Action (ECA) rules. The easiness of the communication language combined with an appropriate explanation mechanism gives trust to the Intelligent Environment actions. However, defining every preference, and maintaining them up-to-date can be cumbersome. Therefore, a complementary mechanism is required to learn from user behavior and adapt to small changes without being explicitly requested for. Inferring behaviors effectively from data collected from sensors in an Intelligent Environment is a challenging problem. The main issues include primitive representation of data, the necessity of a high number of sensors, and dealing with few training data collected in a short time. We present MFE3/GADR, an evolutionary constructive induction method to ease inferring inhabitants’ preferences from data collected from simple sensors. We show that this method detects successfully relevant sensors and constructs highly informative features that abstract relations among them. The constructed features, in addition to improving significantly the learning accuracy, break down and encapsulate the performance of inhabitants into decision trees that can easily be converted to ECA rules for further use in the Intelligent Environment. Comparing the empirical results show that our method can reduce a large set of complex ECA rules that represent the preferences to a smaller set of simple ECA rules.
P. Molins-Ruano, C. Sevilla, S. Santini, P.A. Haya, P. Rodríguez, G.M. Sacha
Computers in Human Behavior 31 (2014) 571–579 [download] (JCR, IF 2012: 2.694, Q1 21/129 Psychology, multidisciplinary)
The use of new technical tools as a mean to increase the motivation and improve the education of students is an intriguing and pressing issue. Specifically, great interest has been shown in the use of videogames since they constitute a common leisure-time activity of many young students, a circumstance that shows their motivational, if not their educational, potential. In this paper we suggest that the design of videogames can be a very effective activity. To demonstrate this, we have used game design as a test-bed for an experience involving Computer Science and History students: interdisciplinary teams have cooperated in the design of a video-game on an historical theme. The experience has been repeated along three academic years. The students’ motivation has been evaluated in the last 2 years, demonstrating that it is higher when they use the interdisciplinary design of videogames as a way of learning instead of traditional learning methods.
User Modeling and Adaptation for Daily Routines
Providing Assistance to People with Special Needs
Editors: Estefanía Martín, Pablo A. Haya, Rosa M. Carro
ISBN: 978-1-4471-4777-0 (Print) 978-1-4471-4778-7 (Online)
User Modeling and Adaptation for Daily Routines is motivated by the need to bring attention to how people with special needs can benefit from adaptive methods and techniques in their everyday lives. Assistive technologies, adaptive systems and context-aware applications are three well-established research fields. There is, in fact, a vast amount of literature that covers HCI-related issues in each area separately. However, the contributions in the intersection of these areas have been less visible, despite the fact that such synergies may have a great impact on improving daily living.
Presenting a comprehensive review of state-of-the-art practices on user modeling and adaptation for people with special needs, as well as some reflections on the challenges that need to be addressed in this direction, topics covered within this volume include the analysis, design, implementation and evaluation of adaptive systems to assist users with special needs to take decisions and fulfil daily routine activities. Particular emphasis is paid to major trends in user modeling, ubiquitous adaptive support, diagnostic and accessibility, recommender systems, social interaction, designing and building adaptive assistants for daily routines, field studies and automated evaluation.
Nine leading contributors write on key current research in the domain of adaptive applications for people with special needs, integrating and summarizing findings from the best known international research groups in these areas. User Modeling and Adaptation for Daily Routines highlights how adaptation technologies can ease daily living for all, and support sustainable high-quality healthcare, demographic ageing and social/economic inclusion.