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Filter banks frames are a powerful tool for redundant signal expansions. This book presents state-of-the-art methods and techniques for solving various fundamental problems in the theory and application of filter bank frames. Bringing together cutting-edge research results from the fields of signal processing, control theory, and digital communication, it introduces a systematic approach to filter bank frames. It supplies readers with the foundation in filter bank frames theory and provides numerical algorithms for computing the frame bounds and dual frame.
In many countries the school curriculum oscillates between focusing on traditional subjects and focusing on skills that are linked to the needs of the 21st-century digital age. Rosamund Sutherland argues against such a skills-based curriculum, maintaining that, from a social justice perspective, the priority of schools should be to give young people access to the knowledge that they are not likely to learn outside school. She draws on the work of Michael Young, Lev Vygotsky, Amartya Sen and David Olson to develop new theoretical and practical insights that offer ways of changing policy and practice to improve equality and life chances for young people, while acknowledging the potential transformative role of digital technologies. This timely book will be invaluable to teachers, academics, students and policy makers interested in the ways in which the digital landscape transforms the nature of the debate about equity and social justice in education.
A Framework for Web Science sets out a series of approaches to the analysis and synthesis of the World Wide Web, and other web-like information structures. A comprehensive set of research questions is outlined, together with a sub-disciplinary breakdown, emphasising the multi-faceted nature of the Web, and the multi-disciplinary nature of its study and development. These questions and approaches together set out an agenda for Web Science, the science of decentralised information systems. Web Science is required both as a way to understand the Web, and as a way to focus its development on key communicational and representational requirements. A Framework for Web Science surveys central engineering issues, such as the development of the Semantic Web, Web services and P2P. Analytic approaches to discover the Web's topology, or its graph-like structures, are examined. Finally, the Web as a technology is essentially socially embedded; therefore various issues and requirements for Web use and governance are also reviewed. A Framework for Web Science is aimed primarily at researchers and developers in the area of Web-based knowledge management and information retrieval. It will also be an invaluable reference for students in computer science at the postgraduate level, academics and industrial practitioners.
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