122 research outputs found

    Context-based multimedia semantics modelling and representation

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    The evolution of the World Wide Web, increase in processing power, and more network bandwidth have contributed to the proliferation of digital multimedia data. Since multimedia data has become a critical resource in many organisations, there is an increasing need to gain efficient access to data, in order to share, extract knowledge, and ultimately use the knowledge to inform business decisions. Existing methods for multimedia semantic understanding are limited to the computable low-level features; which raises the question of how to identify and represent the high-level semantic knowledge in multimedia resources.In order to bridge the semantic gap between multimedia low-level features and high-level human perception, this thesis seeks to identify the possible contextual dimensions in multimedia resources to help in semantic understanding and organisation. This thesis investigates the use of contextual knowledge to organise and represent the semantics of multimedia data aimed at efficient and effective multimedia content-based semantic retrieval.A mixed methods research approach incorporating both Design Science Research and Formal Methods for investigation and evaluation was adopted. A critical review of current approaches for multimedia semantic retrieval was undertaken and various shortcomings identified. The objectives for a solution were defined which led to the design, development, and formalisation of a context-based model for multimedia semantic understanding and organisation. The model relies on the identification of different contextual dimensions in multimedia resources to aggregate meaning and facilitate semantic representation, knowledge sharing and reuse. A prototype system for multimedia annotation, CONMAN was built to demonstrate aspects of the model and validate the research hypothesis, H₁.Towards providing richer and clearer semantic representation of multimedia content, the original contributions of this thesis to Information Science include: (a) a novel framework and formalised model for organising and representing the semantics of heterogeneous visual data; and (b) a novel S-Space model that is aimed at visual information semantic organisation and discovery, and forms the foundations for automatic video semantic understanding

    FLOSSTV Free, Libre, Open Source Software (FLOSS) within participatory 'TV hacking' Media and Arts Practices

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    This research operates in the context of a European political discourse, where the main concern is counter­cultural approaches to non­ mandatory collaboration and contractual agreements. FLOSSTV (Free, Libre, Open Source Software TV) covers a broad range of practices, from television via documentary up to media arts productions. This thesis documents the endeavour to formulate a policy for FLOSS culture. FLOSSTV studies the impact of new intellectual property legislation on media production, as well as conceptions and applications of collective authorship and alternative licensing schemes. FLOSSTV sets out to explore methods that can facilitate media and arts practitioners wishing to engage in collaborative media productions. The thesis sets out to investigate the theories and histories of collaborative media and arts productions in order to set the ground for an exploration of the tools, technologies and aesthetics of such collaborations. The FLOSSTV thesis proposes a set of contracts and policies that allow for such collaborations to develop. It is through practice that this research explores FLOSS culture, including its methods, licensing schemes and technologies. In order to focus the research within the field of FLOSSTV I initiated the practice ­based Deptford.TV pilot project as the central research experiment for the FLOSSTV thesis. DVD ONE contains a series of films produced collaboratively for Deptford.TV that express the characteristics and contractual arrangements of FLOSS culture. Deptford.TV is an online audiovisual database primarily collecting media assets around the Deptford area, in South­East London, UK. Deptford.TV functions as an open, collaborative platform that allows artists, film­makers, researchers and participants of the local workshops in and around Deptford, and also beyond Deptford, to store, share, re­edit and redistribute their footage and projects. The open and collaborative nature of the Deptford.TV project demonstrates a form of shared media practice in two ways: audiences become producers by submitting their own footage, and the database enables the contributors to interact with each other. Through my practice­lead research project Deptford.TV I argue that, by supporting collaborative methods and practices, FLOSS (Free, Libre, Open Source Software) can empower media and arts practitioners to collaborate in production and distribution processes of media and arts practices

    FOLKSONOMIA EM REPOSITÓRIOS DIGITAIS: análise da produção científica nacional e internacional = FOLKSONOMY IN DIGITAL REPOSITORIES: analysis of national and international scientific production

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    Estuda aspectos concernentes Ă  Folksonomia e Ă  representação colaborativa da informação em sistemas como os RepositĂłrios Digitais. Tem como objetivo analisar a produção cientĂ­fica nacional e internacional sobre Folksonomia em RepositĂłrios Digitais. Objetiva especificamente: demonstrar o status das produçÔes cientĂ­ficas sobre essa temĂĄtica; categorizar os enfoques de estudos acerca da temĂĄtica e apresentar as tendĂȘncias e perspectivas de estudos sobre o tema. Tem como metodologia as pesquisas bibliogrĂĄfica, exploratĂłria e descritiva com abordagem quantitativa e qualitativa para fins de recuperação, anĂĄlise e mapeamento da produção cientĂ­fica nacional e internacional sobre a temĂĄtica no Portal de PeriĂłdicos CAPES. Constata que 53% das produçÔes cientĂ­ficas recuperadas foram publicadas no perĂ­odo de 2010 a 2015 e 47% dos trabalhos estĂŁo distribuĂ­dos no intervalo de tempo entre 2016 a 2020. Evidencia que, dentre os artigos recuperados, 17% sĂŁo pesquisas publicadas em periĂłdicos brasileiros; 83% foram publicadas em revistas internacionais. Identifica os seguintes enfoques de estudos sobre o tema: a) propostas de sistemas de recomendação personalizada baseada na Folksonomia; b) interoperabilidade de metadados semĂąnticos orientados pelos(as) usuĂĄrios(as); c) estudos exploratĂłrios de interface de repositĂłrios digitais; d) propostas de navegação hĂ­brida em repositĂłrios digitais com base na Folksonomia e em sistemas formais como ontologias. Conclui evidenciando a predominĂąncia de pesquisas voltadas para sistemas de recomendação e interoperabilidade de metadados semĂąnticos orientados pelos usuĂĄrios. Identifica ainda que as pesquisas sobre a temĂĄtica sĂŁo pouco exploradas na literatura, sobretudo no contexto nacional, se configurando como um universo de estudo a ser explorado pelos profissionais e pesquisadores da ĂĄrea.ABSTRACTIt studies aspects concerning Folksonomy and the collaborative representation of information in systems such as Digital Repositories. It aims to analyze the national and international scientific production on Folksonomy in Digital Repositories. Specifically aims to: demonstrate the status of scientific productions on this topic; categorize the approaches of studies on the theme and present the trends and perspectives of studies on the theme. Its methodology is bibliographical, exploratory and descriptive research with a quantitative and qualitative approach for the purpose of recovery, analysis and mapping of national and international scientific production on the subject in the CAPES Journal Portal. Finds that 53% of the recovered scientific productions were published in the period from 2010 to 2015 and 47% of the works are distributed in the time interval between 2016 to 2020. It shows that among the retrieved articles, 17% are researches published in Brazilian journals; 83% were published in international journals. It identifies the following focus of studies on the subject: a) proposals for personalized recommendation systems based on Folksonomy; b) interoperability of user-oriented semantic metadata; c) exploratory studies of digital repositories interface; d) proposals for hybrid navigation in digital repositories based on Folksonomy and formal systems such as ontologies. It concludes by highlighting the predominance of research aimed at recommendation systems and user-oriented semantic metadata interoperability. Also identifies that research on the subject is little explored in the literature, especially in the national conext, configuring itself as a study universe to be explored by professionals and researchers in the area.

    BlogForever: D3.1 Preservation Strategy Report

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    This report describes preservation planning approaches and strategies recommended by the BlogForever project as a core component of a weblog repository design. More specifically, we start by discussing why we would want to preserve weblogs in the first place and what it is exactly that we are trying to preserve. We further present a review of past and present work and highlight why current practices in web archiving do not address the needs of weblog preservation adequately. We make three distinctive contributions in this volume: a) we propose transferable practical workflows for applying a combination of established metadata and repository standards in developing a weblog repository, b) we provide an automated approach to identifying significant properties of weblog content that uses the notion of communities and how this affects previous strategies, c) we propose a sustainability plan that draws upon community knowledge through innovative repository design

    AXMEDIS 2008

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    The AXMEDIS International Conference series aims to explore all subjects and topics related to cross-media and digital-media content production, processing, management, standards, representation, sharing, protection and rights management, to address the latest developments and future trends of the technologies and their applications, impacts and exploitation. The AXMEDIS events offer venues for exchanging concepts, requirements, prototypes, research ideas, and findings which could contribute to academic research and also benefit business and industrial communities. In the Internet as well as in the digital era, cross-media production and distribution represent key developments and innovations that are fostered by emergent technologies to ensure better value for money while optimising productivity and market coverage

    ECLAP 2012 Conference on Information Technologies for Performing Arts, Media Access and Entertainment

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    It has been a long history of Information Technology innovations within the Cultural Heritage areas. The Performing arts has also been enforced with a number of new innovations which unveil a range of synergies and possibilities. Most of the technologies and innovations produced for digital libraries, media entertainment and education can be exploited in the field of performing arts, with adaptation and repurposing. Performing arts offer many interesting challenges and opportunities for research and innovations and exploitation of cutting edge research results from interdisciplinary areas. For these reasons, the ECLAP 2012 can be regarded as a continuation of past conferences such as AXMEDIS and WEDELMUSIC (both pressed by IEEE and FUP). ECLAP is an European Commission project to create a social network and media access service for performing arts institutions in Europe, to create the e-library of performing arts, exploiting innovative solutions coming from the ICT

    Semantic annotation services for 3D models of cultural heritage artefacts

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