11,515 research outputs found

    Proof-of-Prestige: A Useful Work Reward System for Unverifiable Tasks

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    As cryptographic tokens and altcoins are increasingly being built to serve as utility tokens, the notion of useful work consensus protocols, as opposed to number-crunching PoW consensus, is becoming ever more important. In such contexts, users get rewards from the network after they have carried out some specific task useful for the network. While in some cases the proof of some utility or service can be proved, the majority of tasks are impossible to verify. In order to deal with such cases, we design Proof-of-Prestige (PoP) - a reward system that can run on top of Proof-of-Stake blockchains. PoP introduces prestige which is a volatile resource and, in contrast to coins, regenerates over time. Prestige can be gained by performing useful work, spent when benefiting from services and directly translates to users minting power. PoP is resistant against Sybil and Collude attacks and can be used to reward workers for completing unverifiable tasks, while keeping the system free for the end-users. We use two exemplar use-cases to showcase the usefulness of PoP and we build a simulator to assess the cryptoeconomic behaviour of the system in terms of prestige transfer between nodes.Comment: 2019 IEEE International Conference on Blockchain and Cryptocurrency (ICBC 2019

    Audiovisual preservation strategies, data models and value-chains

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    This is a report on preservation strategies, models and value-chains for digital file-based audiovisual content. The report includes: (a)current and emerging value-chains and business-models for audiovisual preservation;(b) a comparison of preservation strategies for audiovisual content including their strengths and weaknesses, and(c) a review of current preservation metadata models, and requirements for extension to support audiovisual files

    Demob Suits: One Uniform for Another? Burtons and the Leeds Multiple Tailors' Production of Men's Demobilization Tailoring after the Second World War

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    This article focuses on the key role played by the Leeds multiple tailors in the production of tailoring for British servicemen demobilized after the Second World War. The government provided each man demobilized with a full outfit of clothing, including underwear, shoes, a hat, coat and tailored wool suit – — the latter commonly described as a ‘demob’ suit. The article explores the significance of demob suits and how they were received by the men who had to wear them, highlighting men’s concern about what they wore. The public rhetoric around the provision of demob suits will be considered within the context of the government restrictions on clothing of the 1940s and the way the suits were produced. The article argues that men’s experience of the made-to-measure system of tailoring by the Leeds multiples influenced many servicemen’s expectations about what constituted acceptable tailoring, fashion and standards of dress for their demob suits

    Drama Out of a Crisis: A Celebration of Play for Today

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    A discussion of uses of archive television in the BBC Four documentary 'Drama Out of a Crisis: A Celebration of Play for Today'

    Framework for the implementation of urban big screens in the public space

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    In the last decade, big urban screens have appeared in town squares and on building facades across the UK. The use of these screens brings new potentials and challenges for city regulators, artists, architects, urban designers, producers, broadcasters and advertisers. Dynamic moving images form new architectural material, affecting our perception and the experience of the space around us. A new form of urban space is emerging that is fundamentally different from what we have known, and it seems that we are ill-equipped to deal with and analyse it. We are just beginning to understand the opportunities for public information, art and community engagement. Most of screens at present serve mainly commercial purposes, they do not broadcast information aimed at sharing community content nor do they support public social interactions. We need to see more negotiation between commercial, public and cultural interests. The SCREAM project addresses these new challenges by looking at the physical urban spaces and the potential spaces created by the new technologies

    The Scottish corpus of texts and speech

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    Freelance Radio Practices: Producing Music Documentaries for Commercial Radio

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    This study considers the practice of freelance radio producers creating music documentaries for commercial radio audiences. Commercial radio is an underexplored field of study, while investigations into music documentary content for commercial broadcasters are even more uncommon. Previous inquiries into radio documentary production have focused on public service models of broadcasting. These studies often view the subject from a journalistic agenda, overlooking technical approaches and ignoring the commercial imperatives that inform freelance practices. I explore how advances in digital production tools and online technologies shape the work of radio producers. I address wider issues of debate surrounding freelance activities and question whether autonomous producers are capable of creating music documentary content of a calibre consistent with traditional team approaches to documentary production. As an experienced practitioner in the field of commercial radio, I use a practice-based approach to reveal the practices a freelance radio producer adopts to make music documentaries for commercial radio. I argue that this method is essential in order to capture an accurate, first-hand perspective of contemporary industry practice. It draws on a combination of data collection methods including iterative production research, industry interviews, and auto-ethnographic observations as a freelance radio producer across a five-year period of production. This data is interrogated using a theoretical framework that incorporates ideas of political economy, commercial broadcasting and documentary production. I find that the advances in digital production tools and online technologies have streamlined workflow processes and enabled the merging of a various duties into a single production role. I argue that political, economic and commercial considerations impact on the work of radio freelancers in the field by shaping their production output. I acknowledge this is a highly specialised field, as music documentaries are not commonly heard on commercial radio. Yet I assert the industry is favourable towards this form of programming, and recognises its ability to attract new audiences, strengthen listener loyalty and reinforce a station’s brand

    BlogForever D3.3: Development of the Digital Rights Management Policy

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    This report presents a set of recommended practices and approaches that a future BlogForever repository can use to develop a digital rights management policy. The report outlines core legal aspects of digital rights that might need consideration in developing policies, and what the challenges are, in particular, in relation to web archives and blog archives. These issues are discussed in the context of the digital information life cycle and steps that might be taken within the workflow of the BlogForever platform to facilitate the gathering and management of digital rights information. Further, the reports on interviews with experts in the field highlight current perspectives on rights management and provide empirical support for the recommendations that have been put forward
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