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  1. No Access

    Chapter and Conference Paper

    Secure and Task Abortion Aware GA-Based Hybrid Metaheuristics for Grid Scheduling

    In traditional distributed computing the users and owners of the computational resources usually belong to the same administrative domain. Therefore security and reliability of the resources are not concerned ...

    Joanna Kołodziej, Fatos Xhafa… in Parallel Problem Solving from Nature, PPSN… (2010)

  2. No Access

    Chapter and Conference Paper

    A GA(TS) Hybrid Algorithm for Scheduling in Computational Grids

    The hybridization of heuristics methods aims at exploring the synergies among stand alone heuristics in order to achieve better results for the optimization problem under study. In this paper we present a hybr...

    Fatos Xhafa, Juan A. Gonzalez, Keshav P. Dahal… in Hybrid Artificial Intelligence Systems (2009)

  3. No Access

    Chapter and Conference Paper

    A Compendium of Heuristic Methods for Scheduling in Computational Grids

    Scheduling in large scale distributed computing environments such as Computational Grids, is currently receiving a considerable attention of researchers. Despite that scheduling in such systems has much in com...

    Fatos Xhafa, Ajith Abraham in Intelligent Data Engineering and Automated… (2009)

  4. No Access

    Chapter and Conference Paper

    Supporting Effective Monitoring and Knowledge Building in Online Collaborative Learning Systems

    This paper aims to report on an experience of using an innovative groupware tool to support real, collaborative learning. We base the success of on-line collaborative learning on extracting relevant knowledge ...

    Santi Caballé, Angel A. Juan, Fatos Xhafa in Emerging Technologies and Information Syst… (2008)

  5. No Access

    Chapter and Conference Paper

    Enabling Efficient Real Time User Modeling in On-Line Campus

    User modelling in on-line distance learning is an important research field focusing on two important aspects: describing and predicting students’ actions and intentions as well as adapting the learning process...

    Santi Caballé, Fatos Xhafa, Thanasis Daradoumis, Raul Fernandez in User Modeling 2007 (2007)

  6. No Access

    Chapter and Conference Paper

    Efficient Embedding of Information and Knowledge into CSCL Applications

    This study aims to explore two crucial aspects of collaborative work and learning: the importance of enabling CSCL applications, on the one hand, to capture and structure the information generated by group act...

    Santi Caballé, Thanasis Daradoumis… in Technologies for E-Learning and Digital En… (2007)

  7. Chapter and Conference Paper

    Using Parallelism in Experimenting and Fine Tuning of Parameters for Metaheuristics

    We show that parallel implementations of metaheuristics are efficient tools for both experimenting and fine tuning of parameters.

    Maria Blesa, Fatos Xhafa in Computational Science - ICCS 2004 (2004)

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