Knowledge web: realising the semantic web... all the way to knowledge-enhanced multimedia documents

The semantic web and semantic web services are major efforts in order to spread and to integrate knowledge technology to the whole web. The Knowledge Web network of excellence aims at supporting their developments at the best and largest European level and supporting industry in adopting them. It especially investigates the solution of scalability, heterogeneity and dynamics obstacles to the full development of the semantic web. We explain how Knowledge Web results should benefit knowledge-enhanced multimedia applications

(De)convergence in TV: a comparative analysis of the development of Smart TV

Against the backdrop of media convergence, Smart TVs are developing rapidly in large parts of the world. Smart TV refers to the integration of broadband Internet and social media features into TV sets. From a media business perspective, the proliferation of Smart TV services may put pressure on the market structure of the TV landscape, and urge for new business models in order to capture the dynamics of media convergence. By means of a comparative analysis in four European markets (Belgium, Germany, the Netherlands and the United Kingdom), the development of Smart TV is sketched in terms of viewing patterns, business models and standardization. The conclusion is that national TV markets are evolving quite differently, so that service providers must adapt their marketing strategies to reflect local market conditions. Hence, the success of Smart TV ultimately depends on the local package of value-added services and the amount of strategic partnerships with content owners, TV broadcasters and pay-TV operators

The evaluation of next generation learning technologies: the case of mobile learning

Mobile learning is at a leading edge of learning technologies and is at present characterised by pilots and trials that allow mobile technologies to be tested in a variety of learning contexts. The sustained deployment of mobile learning will depend on these pilots and trials, especially their evaluation methodology and reporting. The paper examines a sample of current evaluation practice, based on evidence drawn from conference proceedings, published case studies, and other accounts from the literature and draws on the authors' work in collecting case studies of mobile learning from a range of recent projects. The issues discussed include the apparent objectives of the documented pilots or trials, the nature of the evaluations, instruments and techniques used, and the presentation of findings. The paper reflects on the quality of evaluation in mobile learning pilots and trials, in the broader context of evolving practices in the evaluation of educational technologies

Requirements for an Adaptive Multimedia Presentation System with Contextual Supplemental Support Media

Investigations into the requirements for a practical adaptive multimedia presentation system have led the writers to propose the use of a video segmentation process that provides contextual supplementary updates produced by users. Supplements consisting of tailored segments are dynamically inserted into previously stored material in response to questions from users. A proposal for the use of this technique is presented in the context of personalisation within a Virtual Learning Environment. During the investigation, a brief survey of advanced adaptive approaches revealed that adaptation may be enhanced by use of manually generated metadata, automated or semi-automated use of metadata by stored context dependent ontology hierarchies that describe the semantics of the learning domain. The use of neural networks or fuzzy logic filtering is a technique for future investigation. A prototype demonstrator is under construction

Workload-Based Configuration of MEMS-Based Storage Devices for Mobile Systems

Because of its small form factor, high capacity, and expected low cost, MEMS-based storage is a suitable storage technology for mobile systems. However, flash memory may outperform MEMS-based storage in terms of performance, and energy-efficiency. The problem is that MEMS-based storage devices have a large number (i.e., thousands) of heads, and to deliver peak performance, all heads must be deployed simultaneously to access each single sector. Since these devices are mechanical and thus some housekeeping information is needed for each head, this results in a huge capacity loss and increases the energy consumption of MEMS-based storage with respect to flash. We solve this problem by proposing new techniques to lay out data in MEMS-based storage devices. Data layouts represent optimizations in a design space spanned by three parameters: the number of active heads, sector parallelism, and sector size. We explore this design space and show that by exploiting knowledge of the expected workload, MEMS-based devices can employ all heads, thus delivering peak performance, while decreasing the energy consumption and compromising only a little on the capacity. Our exploration shows that MEMS-based storage is competitive with flash in most cases, and outperforms flash in a few cases

Learning For Life: The Opportunity For Technology To Transform Adult Education - Part II: The Supplier Ecosystem

In fall 2014, Tyton Partners (formerly Education Growth Advisors), with support from the Joyce Foundation, conducted national research on the role and potential of instructional technology in the US adult education field. The objective was to understand the current state of the field with respect to technology readiness and the opportunities and challenges for increasing the use of technology-based instructional models within adult education. The initial publication in the series, "Part I: Interest in and Aptitude for Technology," focused on demand-side dynamics and addressed adult education administrators' and practitioners' perspectives on the role and potential of technology to support their students' needs and objectives. This second publication, "Part 2: The Supplier Ecosystem," highlights market composition and supply-side dynamics, instructional resource use, and opportunities for innovation

Media Communication, Consumption and Use: The Changing Role of the Designer

Consumers are changing the way in which they create, experience and consume media. User Generated Content (UGC) marks a shift in the way in which ordinary people are now able to contribute to the creation of media. They have become active citizens in what is now a two way conversation. The advent of UGC has created new challenges for communication designers who now need to take on the role of a facilitator in this process. The challenge for communication design is not only to identify appropriate methods for communication, but to understand how best to facilitate connections between users such that they create structures that they can inhabit. This paper explores the changing role of design in UGC rich media communication and presents a Decision Making Framework (DMF) that engages designers in the consideration of the user in the development process. In-depth interviews with leading industry proponents ensure currency of the insights gained. Keywords: Design Process, User Generated Content, Communication Design, Fraimwork</p

Evaluating Mobile Learning: Reflections on Current Practice

The field of mobile learning is at present characterised by a proliferation of pilots and trials that allow mobile technologies to be tested out in a variety of learning contexts. The sustained deployment of mobile learning will depend on the quality of these pilots and trials, which includes evaluation methodology and reporting. The paper examines current evaluation practice, based on evidence drawn from conference publications, published case studies, and other accounts from the literature. The authors also draw on their work in collecting case studies of mobile learning from a range of recent projects. Issues deserving examination include the apparent objectives of the pilots or trials, the nature of the evaluations, instruments and techniques used, and the analysis and presentation of findings. The paper reflects on the quality of evaluation in mobile learning pilots and trials, in the broader context of evolving practices in the evaluation of educational technologies