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Bulgarian OpenAIRE Repository
Institutional Repository
119 Publications
OpenAIRE 2.0 (EC funding)
More information
Detailed data provider information (OpenDOAR)


  • Improving the Elasticity of Services with a P2P Infrastructure

    Han, Weidong; Deters, Ralph (2009)
    Projects: EC | SISTER (205030)
    Web Services (WS) are one of the most popular approaches for building distributed systems due to their widespread acceptance within industry and academia, established and open standards, a wealth of development tools/infrastructures (e.g. Apache Axis [1]), and maybe most importantly the number of successful deployments. A key issue in the deployment of WS is the elasticity of services e.g. their ability to respond to changes in the demand by dynamically adding or removing WS provider nodes. T...

    weSPOT: Inquiry based learning meets learning analytics

    Specht, Marcus; Bedek, Michael; Duval, Erik; Held, Peter; Okada, Alexandra; Stefanov, Krassen; Parodi, Elisabetta; Kikis-Papadakis, K; Strahovnik (2013)
    Projects: EC | WESPOT (318499)
    weSPOT, a project supported by the European Commission, addresses several challenges to building personal knowledge, specifically in the area of science. It focuses on inquiry-based learning, in which the learner takes the role of a self-motivated explorer, and provides support for building these skills. The main problem areas weSPOT tackles are the general lack of inquiry skills in students from ages 12 to 25, the dearth of technological support to bolster students’ curiosity, linking ev...

    The Global Campus: ICT and the Global Transformation of Higher Education

    Nikolov, Roumen (2009)
    Projects: EC | SISTER (205030)
    This paper analyses the changes which the ICT drives in a global scale. The emergence of e-Infrastructure for e-Science, the Open Educational Resources movement, e-Libraries and the tendency of building global educational alliances are analysed as well. The paper puts in focus the influence of the Web 2.0 technologies and the new organizational models they drive, e.g. Enterprise 2.0, University 2.0. A new university model is defined – the Global Campus Model. Some arguments that the ultimate ...

    An Analysis and Forecast of Software and Services Research in Bulgaria – Comparing the Situation Two Years Later

    Pavlova, Irena; Petrova-Antonova, Desislava; Eskenazi, Avram; Ilieva, Sylvia; Dimov, Aleksandar (2011)
    Projects: EC | SISTER (205030)
    In [1], we had published the results of our analysis of software and services research in Bulgaria, encompassing the 2004-2008 time period. This analysis was part of the activities performed within the EU FP7 Sister project.By using the same methodology, expanded now with some new features, we started analyzing a new period – 2009-2010. In this paper we compare the results obtained for both periods (overcoming their different duration trough a simple data transformation). The first results ob...

    The Influence of Global Constraints on DTW and LCS Similarity Measures for Time-Series Databases

    Kurbalija, Vladimir; Radovanovic, Milos; Geler, Zoltan; Ivanovic, Mirjana (2011)
    Projects: EC | SISTER (205030)
    Analysis of time series represents an important tool in many application areas. A vital component in many types of time-series analysis is the choice of an appropriate distance/similarity measure. Numerous measures have been proposed to date, with the most successful ones based on dynamic programming. Being of quadratic time complexity, however, global constraints are often employed to limit the search space in the matrix during the dynamic programming procedure, in order to speed up computat...
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