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In the context of technology enhanced learning, digital educational resources are widely used for supporting a wide range of educational activities. Thus, organizing, managing, offering and accessing these resources over the web have been a key issue for our community. Emerging Web 2.0 applications and user attitudes and, especially, the user participation in content generation has increased the amount...
In this paper, we present ASK-CDM-ECTS, a Web based authoring environment for describing higher education study programmes and courses, as well as, their educational material, following an application profile of the course description metadata specification (CDM), namely, CDM-ECTS, that supports the specific requirements of the European credit transfer and accumulation system (ECTS).
Over the last decade learning objects (LOs) have gained a lot of attention as the basis for creating and handling educational digital content in technology-enhanced learning. The main advantage of LOs is considered to be their potential for component-based reusability in different learning settings. However, despite the importance of the concept of reusability and its potential benefits in educational...
The performance of a 16-dimensional lattice quantisation scheme is investigated. A simple E/sub k/-type lattice which includes all the necessary shape patterns for reliable image reconstruction in a codebook of manageable size, is devised to replace the most dense Lambda /sub 16/. Simulation results demonstrate that E/sub 16/-based LQ achieves better signal-to-noise ratio performance than Lambda /sub...
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