Today's technology-enhanced learning practices cater to students and teachers who use many different learning tools and environments and are used to a paradigm of interaction derived from open, ubiquitous, and socially oriented services. In this context, a crucial issue for education systems in general, and for Intelligent Learning Environments…

This guide provides practical suggestions and tips for authors of learning objects (defined as any grouping of materials that is structured in a meaningful way and is tied to an educational objective), offering advice for design, usability, and reusability; for keeping learning objects learner-centered and learner-driven; for aligning with current…

Examines visual information needs as expressed in users' Web image queries on the Excite search engine. Discusses metadata; content-based image retrieval; user interaction with images; terms per query; term frequency; and implications for the development of models for visual information retrieval and for the design of Web search engines.…

This paper examines the sufficiency of existing e-Learning standards for facilitating and supporting the introduction of adaptive techniques in computer-based learning systems. To that end, the main representational and operational requirements of adaptive learning environments are examined and contrasted against current eLearning standards. The…

This paper presents a reference framework to describe educational material. It introduces the PALO Language as a cognitive based approach to Educational Modeling Languages (EML). In accordance with recent trends for reusability and interoperability in Learning Technologies, EML constitutes an evolution of the current content-centered…