EGO: a personalised multimedia management tool

The problems of Content-Based Image Retrieval (CBIR) sys- tems can be attributed to the semantic gap between the low-level data representation and the high-level concepts the user associates with images, on the one hand, and the time-varying and often vague nature of the underlying information need, on the other. These problems can be addressed by improving the interaction between the user and the system. In this paper, we sketch the development of CBIR interfaces, and introduce our view on how to solve some of the problems of the studied interfaces. To address the semantic gap and long-term multifaceted information needs, we propose a "retrieval in context" system. EGO is a tool for the management of image collections, supporting the user through personalisation and adaptation. We will describe how it learns from the user's personal organisation, allowing it to recommend relevant images to the user. The recommendation algorithm is detailed, which is based on relevance feedback techniques

Reverse-engineering of architectural buildings based on an hybrid modeling approach

We thank MENSI and REALVIZ companies for their helpful comments and the following people for providing us images from their works: Francesca De Domenico (Fig. 1), Kyung-Tae Kim (Fig. 9). The CMN (French national center of patrimony buildings) is also acknowledged for the opportunity given to demonstrate our approach on the Hotel de Sully in Paris. We thank Tudor Driscu for his help on the English translation.This article presents a set of theoretical reflections and technical demonstrations that constitute a new methodological base for the architectural surveying and representation using computer graphics techniques. The problem we treated relates to three distinct concerns: the surveying of architectural objects, the construction and the semantic enrichment of their geometrical models, and their handling for the extraction of dimensional information. A hybrid approach to 3D reconstruction is described. This new approach combines range-based modeling and image-based modeling techniques; it integrates the concept of architectural feature-based modeling. To develop this concept set up a first process of extraction and formalization of architectural knowledge based on the analysis of architectural treaties is carried on. Then, the identified features are used to produce a template shape library. Finally the problem of the overall model structure and organization is addressed

Going with the grain: mobile devices in practice

Fifty-seven alumni of a global Masters program participated in research into their use of mobile devices. Drawing on questionnaire and interview data,the paper examines how far the devices were embedded in the personal and professional lives of these alumni, most of whom were aged 35-54. All had experience of online and distance education, and most worked in education or training. The study revealed some innovative uses of mobile devices, a selection of which is reported in this paper. The paper links the findings to wider debates about the changing relationship between learners and educational institutions, and the role of mobile devices in enabling individuals to engage in learning conversations. Data are provided on which devices were used by the alumni and for what purposes, and the paper explores the implications of these findings for educators

Fostering college and career readiness: how career development activities in schools impact on graduation rates and students' life success

This paper sets out the recent evidence around career development. This evidence is examined within the context of the college and career readiness agenda. The argument is made that in order for young people to be genuinely “ready” for both college and career they need to have attended to their academic achievement, their aspirations and plans for the future, their ability to make transitions and their ability to direct their own careers. It is argued that career development offers schools a body of practice that has been shown to have a positive impact on young people’s readiness for college and career. The report acknowledges that the provision of career development has been in decline in many North American schools despite evidence of its effectiveness. Given the current instability of the labor market, the increasing complexity of the education system and the need to grow the skills base of the workforce in a competitive global market, failing to attend to young people’s careers seems shortsighted. As this paper shows, there is a strong body of evidence which demonstrates that career development activity in schools can help young people to experience academic achievement, successfully transition to the labor market and live happier and more productive lives. It is hoped that setting out the evidence in this area of research will provide policy makers and school leaders with the resources required to make informed decisions and to support the development of the future generations of talent. The paper explores the impacts of career development in relation to four main questions: • Does career development engage young people in their schooling and help keep them attending school? • Does career development positively impact on young people’s academic achievement? • Does career development assist young people in making successful transitions to college or the labor market? • Does career development have a positive effect on people’s career and life success?Career Cruisin

The impact of technology: value-added classroom practice: final report

This report extends Becta’s enquiries into the ways in which digital technologies are supporting learning. It looks in detail at the learning practices mediated by ICT in nine secondary schools in which ICT for learning is well embedded. The project proposes a broader perspective on the notion of ‘impact’ that is rather different from a number of previous studies investigating impact. Previous studies have been limited in that they have either focused on a single innovation or have reported on institutional level factors. However, in both cases this pays insufficient attention to the contexts of learning. In this project, the focus has been on the learning practices of the classroom and the contexts of ICT-supported learning. The study reports an analysis of 85 lesson logs, in which teachers recorded their use of space, digital technology and student outcomes in relation to student engagement and learning. The teachers who filled in the logs, as well as their schools’ senior managers, were interviewed as part of a ‘deep audit’ of ICT provision conducted over two days. One-hour follow-up interviews with the teachers were carried out after the teachers’ log activity. The aim of this was to obtain a broader contextualisation of their teaching

Vortex Tube Refrigeration Systems And Methods

Briefly described, embodiments of this disclosure, among others, include vortex vapor compression refrigeration (VCR) systems and methods of cooling.Georgia Tech Research Corporatio

A citizen journalism primer

Citizen journalism is a hot topic at present, but there remains a degree of conceptual wooliness about its definition and meaning, with everything from lifestyle blogs to live footage of freak weather events being included in this category. This paper will identify factors underpinning the emergence of citizen journalism, including the rise of Web 2.0, rethinking journalism as a professional ideology, the decline of ‘high modernist’ journalism, divergence between elite and popular opinion, changing revenue bases for news production, and the decline of deference in democratic societies. It will consider case studies such as the Korean OhMyNews web site, and connect these issues to wider debates about the implications of journalism and news production increasingly going into the Internet environment