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  • Situated micro-displays for activity-aware systems

     Medina Medina, Esunly; Kawsar, Fahim; Meseguer Pallares, Roque; Ochoa, Sergio
    International Conference on Distributed, Ambient, and Pervasive Interactions
    Presentation's date: 2014-06
    Presentation of work at congresses

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    Most activity-aware systems designed to support mobile workers in dynamic environments, such as hospitals or industrial plants, typically consider the use of mobile devices and large displays. However, we envision potential benefits of using ubiquitous micro-displays as support of mobile workers activities. Particularly, in this paper we show how the use of situated micro-displays, as a mechanism for embedding information into a physical environment, can contribute to improve the performance and experience of mobile workers in those scenarios. The article also describes the prototype of a micro-display network designed to support people performing spatially distributed activities. It also presents a user study that helps understand how the spatial distribution of situated micro-displays impacts on the mobile workers performance.

    Most activity-aware systems designed to support mobile workers in dynamic environments, such as hospitals or industrial plants, typically consider the use of mobile devices and large displays. However, we envision potential benefits of using ubiquitous micro-displays as support of mobile workers activities. Particularly, in this paper we show how the use of situated micro-displays, as a mechanism for embedding information into a physical environment, can contribute to improve the performance and experience of mobile workers in those scenarios. The article also describes the prototype of a micro-display network designed to support people performing spatially distributed activities. It also presents a user study that helps understand how the spatial distribution of situated micro-displays impacts on the mobile workers performance.

  • Communication support for mobile collaborative work: an experimental study

     Meseguer Pallares, Roque; Medina Medina, Esunly; Ochoa, Sergio; Pino, José; Neyem, Andres; Navarro Moldes, Leandro; Royo Valles, Maria Dolores
    International journal of information technology and decision making
    Date of publication: 2012-11
    Journal article

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    Follow-up and feedback processes in the EHEA  Open access

     Canto Rodrigo, Pablo Del; Gallego Fernandez, M. Isabel; Lopez Canalda, Jose Manuel; Medina Medina, Esunly; Mochon Duro, Francisco; Mora Serrano, Francisco Javier; Reyes Muñoz, M. Angélica; Rodriguez Luna, Eva; Salamí San Juan, Esther; Santamaria Barnadas, Eduard; Valero Garcia, Miguel
    Journal of technology and science education
    Date of publication: 2011-02-21
    Journal article

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    In the present paper, we describe the work being carried out by a group of professors so as to implement the follow-up and feedback processes of the activities students do throughout the first academic years in their Engineering studies. Not to mention, this project is within the EHEA (European Higher Education Area) framework. Our results show that these processes are key to enhance students learning, they can also have an impact in their academic performance and can be optimized in such a way that professors can assume the time it requires.

  • A communication infrastructure to ease the development of mobile collaborative applications

     Rodri­guez-Covili, Juan; Ochoa, Sergio; Pino, José; Meseguer Pallares, Roque; Medina Medina, Esunly; Royo Valles, Maria Dolores
    Journal of network and computer applications
    Date of publication: 2011
    Journal article

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    Mobile workers doing loosely coupled activities typically perform on demand collaboration in the physical workplace. Communication services available in such work scenarios are uncertain, therefore mobile collaborative applications supporting those activities must provide ad hoc communication mechanisms in order to use each cooperation opportunity. Typically, the complexity of implementing such mobile ad hoc communication mechanisms becomes a challenge that jeopardizes the development of mobile collaborative solutions. This article presents a communication infrastructure named HLMP API dealing with that challenge. HLMP API intends to ease the development of such applications through the reuse of communication services. The infrastructure is an application programming interface that implements the HLMP routing protocol and also some awareness mechanisms that are required for mobile loosely coupled work. Developers using this infrastructure do not have to perform low-level programming.

  • Characterizing the effects of sharing hardware resources in mobile collaboration scenarios

     Vega D'Aurelio, Davide; Medina Medina, Esunly; Meseguer Pallares, Roque; Royo Valles, Maria Dolores; Freitag, Felix; Ochoa, Sergio; Pino, José
    International Conference on Computer Supported Cooperative Work in Design
    Presentation's date: 2011
    Presentation of work at congresses

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  • A node placement heuristic to encourage resource sharing in mobile computing

     Vega D'Aurelio, Davide; Medina Medina, Esunly; Meseguer Pallares, Roque; Royo Valles, Maria Dolores; Freitag, Felix
    International Conference on Computational Science and Its Applications
    Presentation's date: 2011-06-23
    Presentation of work at congresses

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  • SISTEMAS DISTRIBUIDOS AUTO-ADAPTABLES PARA LA INTERNET DEL FUTURO

     León Gutiérrez, Xavier; Royo Valles, Maria Dolores; Freitag, Felix; Meseguer Pallares, Roque; Reyes Muñoz, M. Angélica; Gallardo Gomez, Antonia; Vega D'Aurelio, Davide; Chacin Martinez, Pablo Jesus; Brunner, René; Medina Medina, Esunly; Lopez Berga, Ester; Navarro Moldes, Leandro
    Participation in a competitive project

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  • FP7-288535-CONFINE - Community Networks Testbed for the Future Internet

     Navarro Moldes, Leandro; Meseguer Pallares, Roque; Vega D'Aurelio, Davide; Medina Medina, Esunly
    Participation in a competitive project

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    HLMP API: A software library to support the development of mobile collaborative applications  Open access

     Rodriguez-Covili, Juan Francisco; Ochoa, Sergio; Pino, José; Meseguer Pallares, Roque; Medina Medina, Esunly; Royo Valles, Maria Dolores
    International Conference on Computer Supported Cooperative Work in Design
    Presentation's date: 2010-04
    Presentation of work at congresses

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    Mobile collaborative applications are usually deployed in work scenarios where the existence of fixed communication infrastructure is hard to predict. For that reason, these applications use Mobile Ad hoc Networks (MANETs) to support communication between mobile users. The complexity involved in such communication infrastructures make that developers avoid developing software for mobile work scenarios. However, it is possible to provide a reusable abstraction of such communication mechanisms, in order to avoid that developers have to deal with low-level programming. This article presents HLMP API, which is an application programming interface that provides access to a HLMP implementation. This API is organized as a fully distributed mobile communication infrastructure, able to run on MANETs. This infrastructure provides an important set of services, which are required to support mobile collaboration. The reuse of these services allows developers to reduce the complexity, times and cost of these development projects.

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    Group Prediction in Collaborative Learning  Open access

     Meseguer Pallares, Roque; Medina Medina, Esunly; Royo Valles, Maria Dolores; Navarro Moldes, Leandro; Juárez, Juan Pablo
    International Conference on Intelligent Environments
    Presentation's date: 2010-07-21
    Presentation of work at congresses

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    We propose an approach for predicting group formations, to address the problem of automating the incorporation of group awareness into CSCL applications. Contextual information can enable the construction of applications that effectively assist the group members to automatically communicate in synchronous and collocated collaborative learning activities. We used data traces collected from the study of students’ behavior to train and test an intelligent system. Results have shown that context-information can be effectively used as a basis for a middleware for a dynamic group management. Inferring group membership is technically viable and can be used in real world settings.

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    OLSRp: predicting control information to achieve scalability in OLSR ad hoc networks  Open access

     Medina Medina, Esunly; Meseguer Pallares, Roque; Molina Clemente, Carlos; Royo Valles, Maria Dolores
    International ICST Conference on Mobile Networks and Management
    Presentation's date: 2010-09-23
    Presentation of work at congresses

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    Scalability is a key design challenge that routing protocols for ad hoc networks must properly address to maintain the network performance when the number of nodes increases. We focus on this issue by reducing the amount of control information messages that a link state proactive routing algorithm introduces to the network. Our proposal is based on the observation that a high percentage of those messages is always the same. Therefore, we introduce a new mechanism that can predict the control messages that nodes need for building an accurate map of the network topology so they can avoid resending the same messages. This prediction mechanism, applied to OLSR protocol, could be used to reduce the number of messages transmitted through the network and to save computational processing and energy consumption. Our proposal is independent of the OLSR configuration parameters and it can dynamically self-adapt to network changes.

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    Supporting context-aware collaborative learning through automatic group formation  Open access

     Meseguer Pallares, Roque; Medina Medina, Esunly; Royo Valles, Maria Dolores; Navarro Moldes, Leandro; Damian-Reyes, Pedro; favela, jesus
    Ubiquitous Computing & Ambient Intelligence
    Presentation's date: 2010-09-10
    Presentation of work at congresses

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    Collaborative learning is based on groups of students working together with traditional and computer-based tools or applications. We have found that to make these supporting applications more effective we need to address the problem of automating group awareness in CSCL applications by estimating group arrangements from location sensors and the history of interaction. This contextual information can enable the construction of applications that facilitate communication among group members in synchronous and collocated collaborative learning activities. We used data traces collected from the study of students‟ behavior to train and test an intelligent system. Results show that context-information can be effectively used as a basis for a middleware for automating group management. Inferring group membership is technically feasible, can be integrated in group-support applications and can be used in real-world settings.

  • ALLOW - Adaptable Pervasive Flows

     Medina Medina, Esunly
    Participation in a competitive project

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  • Building Real-World Ad-Hoc Networks to Support Mobile Collaborative Applications: Lessons Learned

     Meseguer Pallares, Roque; Ochoa, Sergio; Pino, José; Medina Medina, Esunly; Navarro Moldes, Leandro; Royo Valles, Maria Dolores; Neyem, Andres
    International Workshop on Groupware
    Presentation's date: 2009-09-01
    Presentation of work at congresses

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    Mobile collaboration is required in several work scenarios, i.e. education, healthcare, business and disaster relief. The features and capabilities of the communication infrastructure used by mobile collaborative applications will influence the type of coordination and collaboration that can be supported in real work scenarios. Developers of these applications are typically unaware of the constraints the communication infrastructure imposes on the collaborative system. Therefore, this paper presents an experimental study of how ad-hoc networks can effectively support mobile collaborative work. The article analyzes several networking issues and it determines how they influence the collaborative work. The paper also presents the lessons learned and it provides recommendations to deal with the networking issues intrinsic to adhoc networks.

  • P2PGRID: Self-adjusting Peer-to-peer and Grid Systems (TIN2007-68050-C03-01)

     Chacin Martinez, Pablo Jesus; Navarro Moldes, Leandro; Reyes Muñoz, M. Angélica; Gallardo Gomez, Antonia; Freitag, Felix; Meseguer Pallares, Roque; Royo Valles, Maria Dolores; Artigas Vidal, Pau; Marques Puig, Joan Manel; Sanjeevan, Kanapathipillai; Brunner, René; León Gutiérrez, Xavier; Medina Medina, Esunly
    Participation in a competitive project

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