1,721,045 research outputs found
Microblogging macrochallenges for repositories
No full textThe Web offers social scientists and other researchers unprecedented data resources for primary empirical research and for the development of analytical and methodological skills. The ubiquity of confessional interviews across the mass media offers instant access to people’s everyday lives and thoughts. Reflecting on these developments, Savage and Burrows (2007) insist that academic researchers should engage seriously with the digital data that are produced outside the academy and that this data poses fundamental challenges for sociological practice
Micro data repositories: increasing the value of research on the web
Full text linkPresentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014General Track Papers and PanelsThe session was recorded and is available for watching (this presentation starts at 0:01:20)As funders and the academic community start to recognise the value in preserving and disseminating data, computing services departments are increasingly called upon to provide infrastructure. We discuss considerations in developing a micro repository approach, where an instance of a repository is created for each dataset, exploring data acquisition and interface requirement. Key to this approach is standardising instances of the repository for reduced support overheads. Details of two micro data repositories are provided as case studies. While the two repositories differ significantly in nature, both have been managed on the same infrastructure and have been well recieved by their respective owners resulting in the creation of an institutional solution.Field, Adam (University of Southampton, United Kingdom)Patrick, McSweeney (University of Southampton, United Kingdom
Digital Preservation: Logical and bit-stream preservation using Plato, EPrints and the Cloud
No full textThe rapid technological changes in today's information landscape have considerably turned the preservation of digital information into a pressing challenge. The aim of an institutional repository has evolved in the last decade from the simple need to provide material with a persistent online home, to an infrastructure that facilitates services on complex collections of digital objects. Digital librarians have long acknowledged the preservation function as a vital back office service that is central to the role of repository. However, preservation is often sidelined due to the practical constraints of running a repository. Dealing with institutional-scale ingests and quality assurance with minimal staff and investment rarely leaves sufficient capacity for engaging with a preservation agenda. A lot of different strategies, i.e. preservation actions, have been proposed to tackle this challenge: migration and emulation are the most prominent ones. However, which strategy to choose, and subsequently which tools to select to implement it, poses significant challenges. The creation of a concrete plan for preserving an institution's collection of digital objects requires the evaluation of possible preservation solutions against clearly defined and measurable criteria. This tutorial shows attendees the latest facilities in the EPrints open source repository platform for dealing with preservation tasks in a practical and achievable way, and new mechanisms for integrating the repository with the cloud and the user desktop, in order to be able to offer a trusted and managed storage solution to end users. Furthermore, attendees will create a preservation plan on the basis of a representative scenario and receive an accountable and informed recommendation for a particular preservation action. The whole preservation planning process will be supported by Plato, a decision support tool that implements a solid preservation planning approach and integrates services for content characterisation, preservation action and automatic object comparison to provide maximum support for preservation planning endeavours. The benefit of this tutorial is the grounding of digital curation advice and theory into achievable good practice that delivers helpful services to end users for their familiar personal desktop environments and new cloud services
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Digital Preservation Tools for Repository Managers 4: Putting storage, format management and preservation planning in the repository
No full textThe 5-module JISC KeepIt course on Digital Preservation Tools for Repository Managers was designed by repository managers. Each module consists of a mix of short presentations and hands-on exercises to learn about the basics and gain practice with each of the tools covered. Module 4 puts storage, format management and preservation planning in the repository, by making such functions available from within the familiar repository interface. Hitchcock's introduction briefly reviews the previous module, which acted as a primer on preservation workflow, formats and characterisation, as preparation for the preservation planning tools to be encountered in this module. This leads into an extensive practical tutorial on logical and bit-stream preservation using Plato (a preservation planning tool) and EPrints (software for creating digital repositories), which Rauber introduces with a rapid recap on the principles and reasons for digital preservation. Moving on to EPrints, Field presents a new 'hybrid' storage controller for EPrints providing selectable storage options locally and in the cloud. EPrints v3.2 introduces an abstracted storage layer which provides the ability for data hosting services such as Amazon S3 to be used as a storage back-end to EPrints. An accompanying tutorial leads users through some of the storage interfaces that EPrints can use, and also shows how to modify the storage policies. Tarrant places the process of managing formats and risk analysis in the EPrints repository interface. Another supporting exercise gives practical experience with the assignment of risk analysis scores to the discovered file formats to aid in digital preservation decisions. In this activity users are presented with a set of test files, a series of scanned images, for use throughout the remaining exercises. In a major element of this tutorial Rauber and Kulovits review preservation planning workflow, showing how to identify requirements using a mindmap approach and then how to upload the output to Plato, the preservation planning tool, to run experiments and produce results. Two exercises are outlined for users in the final 5 slides of the presentation, to describe the collection of test files provided previously, using the mindmap to define the requirements and to create the plan using Plato. The module completes with an exercise on preservation action (see document, no presentation slides), migrating selected files to new formats as identified in the plan. The preservation plan is uploaded to EPrints to act on the test files, displaying the results in an EPrints interface, also providing the means to review the preservation actions. Materials here include all presentations and supplementary materials to support the practicals, so the full course module can be experienced by other users
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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