210,378 research outputs found

    Access and Preservation in Archival Mass Digitization Projects

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    [Excerpt] In 2014, the Dalhousie University Archives began its first archival mass digitization project with the Elisabeth Mann Borgese fonds. The successful completion of this project required the project team to address both broad and specific technical and intellectual challenges, from rights management in an online access environment to the durability of the equipment used. To best understand the challenges faced, there will first be a brief introduction to the fonds and project goals of balancing preservation and access before moving on to a discussion of these challenges in further detail, and finally, concluding with a discussion of some considerations, best practices, and lessons learned from this project

    Which World Bank reports are widely read?

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    Knowledge is central to development. The World Bank invests about one-quarter of its budget for country services in knowledge products. Still, there is little research about the demand for these knowledge products and how internal knowledge flows affect their demand. About 49 percent of the World Bank’s policy reports, which are published Economic and Sector Work or Technical Assistance reports, have the stated objective of informing the public debate or influencing the development community. This study uses information on downloads and citations to assesses whether policy reports meet this objective. About 13 percent of policy reports were downloaded at least 250 times while more than 31 percent of policy reports are never downloaded. Almost 87 percent of policy reports were never cited. More expensive, complex, multi-sector, core diagnostics reports on middle-income countries with larger populations tend to be downloaded more frequently. Multi-sector reports also tend to be cited more frequently. Internal knowledge sharing matters as cross support provided by the World Bank’s Research Department consistently increases downloads and citations

    vSkyConf: Cloud-assisted Multi-party Mobile Video Conferencing

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    As an important application in the busy world today, mobile video conferencing facilitates virtual face-to-face communication with friends, families and colleagues, via their mobile devices on the move. However, how to provision high-quality, multi-party video conferencing experiences over mobile devices is still an open challenge. The fundamental reason behind is the lack of computation and communication capacities on the mobile devices, to scale to large conferencing sessions. In this paper, we present vSkyConf, a cloud-assisted mobile video conferencing system to fundamentally improve the quality and scale of multi-party mobile video conferencing. By novelly employing a surrogate virtual machine in the cloud for each mobile user, we allow fully scalable communication among the conference participants via their surrogates, rather than directly. The surrogates exchange conferencing streams among each other, transcode the streams to the most appropriate bit rates, and buffer the streams for the most efficient delivery to the mobile recipients. A fully decentralized, optimal algorithm is designed to decide the best paths of streams and the most suitable surrogates for video transcoding along the paths, such that the limited bandwidth is fully utilized to deliver streams of the highest possible quality to the mobile recipients. We also carefully tailor a buffering mechanism on each surrogate to cooperate with optimal stream distribution. We have implemented vSkyConf based on Amazon EC2 and verified the excellent performance of our design, as compared to the widely adopted unicast solutions.Comment: 10 page

    HealthyGrowth - From niche to volume with integrity and trust

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    Die Märkte für ökologisch erzeugte Nahrungsmittel unterscheiden sich zwar in den europäischen Ländern. In allen aber ist eine Steigerung des ökologischen Handelsvolumens erwünscht, wobei kleine wie große Vermarkter mit spezifischen Problemen konfrontiert sind. Während kleine Unternehmen oder Initiativen oft an der Verfügbarkeit großer Mengen scheitern, müssen sich große Unternehmen der Herausforderung stellen, den umfassenden Qualitätsanforderungen gerecht zu werden und dem Kunden die Werte ökologisch produzierter Nahrungsmittel glaubhaft zu vermitteln. Das Projekt HEALTHYGROWTH beruht auf der Kooperation von elf Partnern. Das deutsche Team leistet einen Beitrag zu den Arbeitspaketen WP2 bis WP6 und ist verantwortlich für WP7. Die deutschen Fallstudien von mittelgroßen ökologischen Wertschöpfungsketten werden in unterschiedlichen Unternehmen oder Initiativen jeweils mit spezifischen Untersuchungsschwerpunkten stattfinden. Die vergleichende Auswertung der Fallstudien wird thematisch nach Themenfeldern aufgefächert. Diese mehrdimensionale Analyse soll beim Verständnis der Mechanismen wachsender organischer Wertschöpfungsketten helfen. Eine Aufgabe des HNEE-Teams besteht in der Koordination des Transfers von Ergebnissen in Wissenschaft und Praxis. Schlüsselpersonen der Branche werden von Beginn an konsequent eingebunden, um die Praxisrelevanz des Ansatzes und eine effektive Verbreitung der Ergebnisse durch Veröffentlichungen, Seminare usw. zu gewährleisten. Hauptbestandteil der Projektarbeit ist neben den Veröffentlichungen die konsequente Einbindung von Vertretern ökologischer Wertschöpfungsketten. Wissenstransfer und gemeinsame Lernprozesse auf nationaler Ebene und über Ländergrenzen hinweg sind Schwerpunkte im Arbeitspaket WP7, das das deutsche Team leitet. Das deutsche Teilprojekt zielt, ebenso wie das Gesamtprojekt, insbesondere auf den Wissens- und Erfahrungsaustausch ab. Die Verwertung der Ergebnisse besteht vor allem in der Verbreitung von Informationen zu Besonderheiten der Wachstumsprozesse innerhalb der Wertschöpfungskette. Hierzu trägt auch der BLE-Ergebnisflyer bei. HEALTHYGROWTH will Erkenntnisse aus verschiedenen Ländern und Unternehmen bündeln und an die Akteure und ihre Netzwerke weitergeben. Zielgruppen sind nicht nur mittelgroße Bio-Nahrungsmittelhändler, sondern auch Kleinerzeuger und Unternehmen, die sich für neue Formen von Partnerschaften und Kooperationen im ökologischen Nahrungsmittelsektor interessieren. Angaben zur Finanzierung des Projekts finden Sie im Förderkatalog des Bundes unter http://foerderportal.bund.de/foekat/jsp/StartAction.do. Bitte geben Sie in das Suchfeld eine 28 plus das Förderkennzeichen (FKZ) des BÖL-Projektes ein, z.B. 2808OE212 für das BÖL-Projekt mit der FKZ 08OE212

    Making "fetch" happen: The influence of social and linguistic context on nonstandard word growth and decline

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    In an online community, new words come and go: today's "haha" may be replaced by tomorrow's "lol." Changes in online writing are usually studied as a social process, with innovations diffusing through a network of individuals in a speech community. But unlike other types of innovation, language change is shaped and constrained by the system in which it takes part. To investigate the links between social and structural factors in language change, we undertake a large-scale analysis of nonstandard word growth in the online community Reddit. We find that dissemination across many linguistic contexts is a sign of growth: words that appear in more linguistic contexts grow faster and survive longer. We also find that social dissemination likely plays a less important role in explaining word growth and decline than previously hypothesized

    Easylife: the data reduction and survey handling system for VIPERS

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    We present Easylife, the software environment developed within the framework of the VIPERS project for automatic data reduction and survey handling. Easylife is a comprehensive system to automatically reduce spectroscopic data, to monitor the survey advancement at all stages, to distribute data within the collaboration and to release data to the whole community. It is based on the OPTICON founded project FASE, and inherits the FASE capabilities of modularity and scalability. After describing the software architecture, the main reduction and quality control features and the main services made available, we show its performance in terms of reliability of results. We also show how it can be ported to other projects having different characteristics.Comment: pre-print, 17 pages, 4 figures, accepted for publication in Publications of the Astronomical Society of the Pacifi
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