Archive for the 'Digital Curation & Digital Preservation' Category

Dublin Core Metadata Initiative Releases DC-2013 Proceedings

Posted in Digital Curation & Digital Preservation, Metadata on September 16th, 2013

The Dublin Core Metadata Initiative has released the DC-2013 proceedings.

Here's an excerpt from the conference description:

DC-2013 will explore questions regarding the persistence, maintenance, and preservation of metadata and descriptive vocabularies. The need for stable representations and descriptions spans all sectors including cultural heritage and scientific data, eGovernment, finance and commerce. Thus, the maintenance and management of metadata is essential to address the long term availability of information of legal, cultural and economic value.

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    "How Portable Are the Metadata Standards for Scientific Data? A Proposal for a Metadata Infrastructure"

    Posted in Data Curation, Open Data, and Research Data Management, Digital Curation & Digital Preservation, Metadata on September 10th, 2013

    Jian Qin and Kai Li have self-archived "How Portable Are the Metadata Standards for Scientific Data? A Proposal for a Metadata Infrastructure."

    Here's an excerpt:

    The one-covers-all approach in current metadata standards for scientific data has serious limitations in keeping up with the ever-growing data. This paper reports the findings from a survey to metadata standards in the scientific data domain and argues for the need for a metadata infrastructure. The survey collected 4400+ unique elements from 16 standards and categorized these elements into 9 categories. Findings from the data included that the highest counts of element occurred in the descriptive category and many of them overlapped with DC elements. This pattern also repeated in the elements co-occurred in different standards. A small number of semantically general elements appeared across the largest numbers of standards while the rest of the element co-occurrences formed a long tail with a wide range of specific semantics. The paper discussed implications of the findings in the context of metadata portability and infrastructure and pointed out that large, complex standards and widely varied naming practices are the major hurdles for building a metadata infrastructure.

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      Special Issue on Research Data Access and Preservation

      Posted in Data Curation, Open Data, and Research Data Management, Digital Curation & Digital Preservation on August 19th, 2013

      The latest issue of the Bulletin of the Association for Information Science and Technology focuses on research data access and preservation.

      Here's a selection of articles:

      • "Partnerships Between Institutional Repositories, Domain Repositories and Publishers"
      • "The Relevance of Research Data Sharing and Reuse Studies"
      • "Tracking Citations and Altmetrics for Research Data: Challenges and Opportunities"
      • "The Research Data Alliance: Implementing the Technology, Practice and Connections of a Data Infrastructure"
      • "The DCC's Institutional Engagements: Raising Research Data Management Capacity in UK Higher Education"

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        Preserving Computer-Aided Design (CAD)

        Posted in Data Curation, Open Data, and Research Data Management, Digital Curation & Digital Preservation, Reports and White Papers on July 25th, 2013

        The Digital Preservation Coalition has released Preserving Computer-Aided Design (CAD).

        Here's an excerpt:

        Computer-Aided Design (CAD) systems are used in both industry and academia to create digital models, whether of engineering designs, archaeological dig sites, or virtual worlds. These models can be of long-lasting significance and importance, particularly if they contain irreplaceable data or relate to long-lived products. This report is primarily aimed at those responsible for archives and repositories with CAD content, but may also be useful for creators of CAD content who want to make their models more amenable to preservation. It begins with an introduction to the historical development and basic concepts of CAD systems, then reviews the most pertinent issues associated with preserving CAD models, and indicates the current state of standardization work in the area. The report goes on to present some recent research of relevance to preserving CAD models before drawing conclusions and making recommendations on how archives should handle the CAD models they accept.

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          "An Evaluation of Caching Policies for Memento TimeMaps"

          Posted in Digital Curation & Digital Preservation on July 24th, 2013

          Justin F. Brunelle and Michael L. Nelson have self-archived "An Evaluation of Caching Policies for Memento TimeMaps" in arXiv.org.

          Here's an excerpt from :

          As defined by the Memento Framework, TimeMaps are machine-readable lists of time-specific copies—called "mementos"—of an archived original resource. In theory, as an archive acquires additional mementos over time, a TimeMap should be monotonically increasing. However, there are reasons why the number of mementos in a TimeMap would decrease, for example: archival redaction of some or all of the mementos, archival restructuring, and transient errors on the part of one or more archives. We study TimeMaps for 4,000 original resources over a three month period, note their change patterns, and develop a caching algorithm for TimeMaps suitable for a reverse proxy in front of a Memento aggregator. We show that TimeMap cardinality is constant or monotonically increasing for 80.2% of all TimeMap downloads observed in the observation period. The goal of the caching algorithm is to exploit the ideally monotonically increasing nature of TimeMaps and not cache responses with fewer mementos than the already cached TimeMap. This new caching algorithm uses conditional cache replacement and a Time To Live (TTL) value to ensure the user has access to the most complete TimeMap available. Based on our empirical data, a TTL of 15 days will minimize the number of mementos missed by users, and minimize the load on archives contributing to TimeMaps.

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            Presentations from Open Repositories 2013

            Posted in Data Curation, Open Data, and Research Data Management, Digital Curation & Digital Preservation, Digital Repositories, Institutional Repositories, Open Access on July 22nd, 2013

            Presentations from Open Repositories 2013 are now available.

            Here's a brief selection of talks:

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              Helping to Open Up: Improving Knowledge, Capability and Confidence in Making Research Data More Open

              Posted in Data Curation, Open Data, and Research Data Management, Digital Curation & Digital Preservation, Open Access, Open Science, Reports and White Papers on July 22nd, 2013

              The Research Information and Digital Literacies Coalition has released Helping to Open Up: Improving Knowledge, Capability and Confidence in Making Research Data More Open.

              Here's an excerpt from the announcement:

              The report describes a framework for how to address this challenge when designing training and support for opening data, within the broader questions of RDM. Recommendations are set out, relating to:

              - putting opening data at the heart of policy

              - putting opening data at the heart of training

              - deepening and broadening the training

              - identifying and disseminating best practice in opening data

              - developing institutional and community support

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                "Crafting Linked Open Data for Cultural Heritage: Mapping and Curation Tools for the Linked Jazz Project"

                Posted in Digital Archives and Special Collections, Digital Curation & Digital Preservation, Linking, Linked Data, and Semantic Web on July 19th, 2013

                M. Cristina Pattuelli, Matt Miller, Leanora Lange, Sean Fitzell, and Carolyn Li-Madeo have published "Crafting Linked Open Data for Cultural Heritage: Mapping and Curation Tools for the Linked Jazz Project" in the latest issue of Code4Lib Journal.

                Here's an excerpt:

                This paper describes tools and methods developed as part of Linked Jazz, a project that uses Linked Open Data (LOD) to reveal personal and professional relationships among jazz musicians based on interviews from jazz archives. The overarching aim of Linked Jazz is to explore the possibilities offered by LOD to enhance the visibility of cultural heritage materials and enrich the semantics that describe them. While the full Linked Jazz dataset is still under development, this paper presents two applications that have laid the foundation for the creation of this dataset: the Mapping and Curator Tool, and the Transcript Analyzer. These applications have served primarily for data preparation, analysis, and curation and are representative of the types of tools and methods needed to craft linked data from digital content available on the web. This paper discusses these two domain-agnostic tools developed to create LOD from digital textual documents and offers insight into the process behind the creation of LOD in general.

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