Search (29 results, page 1 of 2)

  • × theme_ss:"Metadaten"
  • × type_ss:"el"
  • × year_i:[2000 TO 2010}
  1. Metadata practices on the cutting edge (2004) 0.02 
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    Abstract
    The PowerPoint presentations from this one-day workshop on emerging metadata practices are available at this web site. Topics include metadata quality, interoperability, linking metadata, metadata for image collections, RSS, MODS, METS, and MPEG-21. Contributors include representatives from OCLC, CrossRef, the Library of Congress, universities and the private sector. Given the wide range of presentations, if you're interested in metadata you can likely find something of interest here, but no single topic is explored in much depth, and you are sometimes left wondering what the speaker said about a particular slide if there are no accompanying notes.
    Imprint
    Washington, DC : National Information Standards Organization
  2. Baker, T.: ¬A grammar of Dublin Core (2000) 0.01 
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    Abstract
    Dublin Core is often presented as a modern form of catalog card -- a set of elements (and now qualifiers) that describe resources in a complete package. Sometimes it is proposed as an exchange format for sharing records among multiple collections. The founding principle that "every element is optional and repeatable" reinforces the notion that a Dublin Core description is to be taken as a whole. This paper, in contrast, is based on a much different premise: Dublin Core is a language. More precisely, it is a small language for making a particular class of statements about resources. Like natural languages, it has a vocabulary of word-like terms, the two classes of which -- elements and qualifiers -- function within statements like nouns and adjectives; and it has a syntax for arranging elements and qualifiers into statements according to a simple pattern. Whenever tourists order a meal or ask directions in an unfamiliar language, considerate native speakers will spontaneously limit themselves to basic words and simple sentence patterns along the lines of "I am so-and-so" or "This is such-and-such". Linguists call this pidginization. In such situations, a small phrase book or translated menu can be most helpful. By analogy, today's Web has been called an Internet Commons where users and information providers from a wide range of scientific, commercial, and social domains present their information in a variety of incompatible data models and description languages. In this context, Dublin Core presents itself as a metadata pidgin for digital tourists who must find their way in this linguistically diverse landscape. Its vocabulary is small enough to learn quickly, and its basic pattern is easily grasped. It is well-suited to serve as an auxiliary language for digital libraries. This grammar starts by defining terms. It then follows a 200-year-old tradition of English grammar teaching by focusing on the structure of single statements. It concludes by looking at the growing dictionary of Dublin Core vocabulary terms -- its registry, and at how statements can be used to build the metadata equivalent of paragraphs and compositions -- the application profile.
    Date
    26.12.2011 14:01:22
  3. Duval, E.; Hodgins, W.; Sutton, S.; Weibel, S.L.: Metadata principles and practicalities (2002) 0.01 
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    Abstract
    For those of us still struggling with basic concepts regarding metadata in this brave new world in which cataloging means much more than MARC, an article like this is welcome indeed. In this 30.000-foot overview of the metadata landscape, broad issues such as modularity, namespaces, extensibility, refinement, and multilingualism are discussed. In addition, "practicalities" like application profiles, syntax and semantics, metadata registries, and automated generation of metadata are explained. Although this piece is not exhaustive of high-level metadata issues, it is nonetheless a useful description of some of the most important issues surrounding metadata creation and use. The rapid changes in the means of information access occasioned by the emergence of the World Wide Web have spawned an upheaval in the means of describing and managing information resources. Metadata is a primary tool in this work, and an important link in the value chain of knowledge economies. Yet there is much confusion about how metadata should be integrated into information systems. How is it to be created or extended? Who will manage it? How can it be used and exchanged? Whence comes its authority? Can different metadata standards be used together in a given environment? These and related questions motivate this paper. The authors hope to make explicit the strong foundations of agreement shared by two prominent metadata Initiatives: the Dublin Core Metadata Initiative (DCMI) and the Institute for Electrical and Electronics Engineers (IEEE) Learning Object Metadata (LOM) Working Group. This agreement emerged from a joint metadata taskforce meeting in Ottawa in August, 2001. By elucidating shared principles and practicalities of metadata, we hope to raise the level of understanding among our respective (and shared) constituents, so that all stakeholders can move forward more decisively to address their respective problems. The ideas in this paper are divided into two categories. Principles are those concepts judged to be common to all domains of metadata and which might inform the design of any metadata schema or application. Practicalities are the rules of thumb, constraints, and infrastructure issues that emerge from bringing theory into practice in the form of useful and sustainable systems.
  4. Craven, T.: Changes in metatag descriptions over time (2001) 0.01 
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    Abstract
    Four sets of Web pages previously visited in the summer of 2000 were revisited one year later. Of 707 pages containing metatag descriptions in 2000, 586 retained descriptions in 2001, and, of 1,230 pages lacking descriptions in 2000, 101 had descriptions in 2001. Home pages appeared to both lose and change descriptions more than other pages, with about 19% of descriptions changed in the two sets where home pages predominated versus about 12% in the other two sets. About two-thirds of changes involved minor revisions, and changes fell into a wide variety of categories. Some implications for software to assist in description revision are discussed
  5. Baker, T.; Dekkers, M.: Identifying metadata elements with URIs : The CORES resolution (2003) 0.01 
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    Abstract
    On 18 November 2002, at a meeting organised by the CORES Project (Information Society Technologies Programme, European Union), several organisations regarded as maintenance authorities for metadata elements achieved consensus on a resolution to assign Uniform Resource Identifiers (URIs) to metadata elements as a useful first step towards the development of mapping infrastructures and interoperability services. The signatories of the CORES Resolution agreed to promote this consensus in their communities and beyond and to implement an action plan in the following six months. Six months having passed, the maintainers of GILS, ONIX, MARC 21, CERIF, DOI, IEEE/LOM, and Dublin Core report on their implementations of the resolution and highlight issues of relevance to establishing good-practice conventions for declaring, identifying, and maintaining metadata elements more generally. In June 2003, the resolution was also endorsed by the maintainers of UNIMARC. The "Resolution on Metadata Element Identifiers", or CORES Resolution, is an agreement among the maintenance organisations for several major metadata standards - GILS, ONIX, MARC 21, UNIMARC, CERIF, DOI®, IEEE/LOM, and Dublin Core - to identify their metadata elements using Uniform Resource Identifiers (URIs). The Uniform Resource Identifier, defined in the IETF RFC 2396 as "a compact string of characters for identifying an abstract or physical resource", has been promoted for use as a universal form of identification by the World Wide Web Consortium. The CORES Resolution, formulated at a meeting organised by the European project CORES in November 2002, included a commitment to publicise the consensus statement to a wider audience of metadata standards initiatives and to implement key points of the agreement within the following six months - specifically, to define URI assignment mechanisms, assign URIs to elements, and formulate policies for the persistence of those URIs. This article marks the passage of six months by reporting on progress made in implementing this common action plan. After presenting the text of the CORES Resolution and its three "clarifications", the article summarises the position of each signatory organisation towards assigning URIs to its metadata elements, noting any practical or strategic problems that may have emerged. These progress reports were based on input from Thomas Baker, José Borbinha, Eliot Christian, Erik Duval, Keith Jeffery, Rebecca Guenther, and Norman Paskin. The article closes with a few general observations about these first steps towards the clarification of shared conventions for the identification of metadata elements and perhaps, one can hope, towards the ultimate goal of improving interoperability among a diversity of metadata communities.
  6. Mehler, A.; Waltinger, U.: Automatic enrichment of metadata (2009) 0.01 
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    Abstract
    In this talk we present a retrieval model based on social ontologies. More specifically, we utilize the Wikipedia category system in order to perform semantic searches. That is, textual input is used to build queries by means of which documents are retrieved which do not necessarily contain any query term but are semantically related to the input text by virtue of their content. We present a desktop which utilizes this search facility in a web-based environment - the so called eHumanities Desktop.
    Theme
    Semantic Web
  7. Broughton, V.: Automatic metadata generation : Digital resource description without human intervention (2007) 0.01 
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    Date
    22. 9.2007 15:41:14
    Theme
    Semantic Web
  8. Baker, T.; Rühle, S.: Übersetzung des Dublin Core Metadata Initiative Abstract Model (DCAM) (2009) 0.01 
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    Abstract
    Dieses Dokument beschreibt das Abstraktmodell für Dublin-Core-Metadaten. Ziel des Dokuments ist es vor allem, die Elemente und Strukturen, die in Dublin-Core-Metadaten verwendet werden, zu benennen. Das Dokument definiert die verwendeten Elemente und beschreibt, wie sie miteinander kombiniert werden, um Informationsstrukturen zu bilden. Es stellt ein von jeglicher besonderen Codierungssyntax unabhängiges Informationsmodell dar. Ein solches Informationsmodell macht es uns möglich, die Beschreibungen, die wir codieren wollen, besser zu verstehen und erleichtert die Entwicklung besserer Mappings und syntaxübergreifender Datenkonvertierungen. Dieses Dokument richtet sich in erster Linie an Entwickler von Softwareanwendungen, die Dublin-Core-Metadaten unterstützen, an Personen, die neue syntaktische Codierungsrichtlinien für Dublin-Core-Metadaten entwickeln und an Personen, die Metadatenprofile entwickeln, die auf DCMI- oder anderen kompatibelen Vokabularen basieren. Das DCMI-Abstraktmodell basiert auf der Arbeit des World Wide Web Consortium (W3C) am Resource Description Framework (RDF). Die Verwendung von Konzepten aus RDF wird unten im Abschnitt 5 zusammengefasst. Das DCMI-Abstraktmodell wird hier mit UML-Klassen-Diagrammen dargestellt. Für Leser, die solche UML-Klassen-Diagramme nicht kennen, eine kurze Anleitung: Linien, die in einem Maßpfeil enden, werden als 'ist' oder 'ist eine' gelesen (z.B. "value ist eine resource"). Linien, die mit einer Raute beginnen, werden als 'hat' oder 'hat eine' gelesen (z.B. "statement hat einen property URI"). Andere Beziehungen werden entsprechend gekennzeichnet. Die kursiv geschriebenen Wörter und Phrasen in diesem Dokument werden im Abschnitt 7 ("Terminologie") definiert. Wir danken Dan Brickley, Rachel Heery, Alistair Miles, Sarah Pulis, den Mitgliedern des DCMI Usage Board und den Mitgliedern der DCMI Architecture Community für ihr Feedback zu den vorangegangenen Versionen dieses Dokuments.
  9. Cranefield, S.: Networked knowledge representation and exchange using UML and RDF (2001) 0.01 
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    Abstract
    This paper proposes the use of the Unified Modeling Language (UML) as a language for modelling ontologies for Web resources and the knowledge contained within them. To provide a mechanism for serialising and processing object diagrams representing knowledge, a pair of XSI-T stylesheets have been developed to map from XML Metadata Interchange (XMI) encodings of class diagrams to corresponding RDF schemas and to Java classes representing the concepts in the ontologies. The Java code includes methods for marshalling and unmarshalling object-oriented information between in-memory data structures and RDF serialisations of that information. This provides a convenient mechanism for Java applications to share knowledge on the Web
    Source
    Journal of digital information. 1(2001) no.8
  10. Greenberg, J.; Pattuelli, M.; Parsia, B.; Robertson, W.: Author-generated Dublin Core Metadata for Web Resources : A Baseline Study in an Organization (2002) 0.01 
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    Source
    Journal of digital information. 2(2002) no.2,
  11. Heery, R.; Wagner, H.: ¬A metadata registry for the Semantic Web (2002) 0.01 
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    Abstract
    The Semantic Web activity is a W3C project whose goal is to enable a 'cooperative' Web where machines and humans can exchange electronic content that has clear-cut, unambiguous meaning. This vision is based on the automated sharing of metadata terms across Web applications. The declaration of schemas in metadata registries advance this vision by providing a common approach for the discovery, understanding, and exchange of semantics. However, many of the issues regarding registries are not clear, and ideas vary regarding their scope and purpose. Additionally, registry issues are often difficult to describe and comprehend without a working example. This article will explore the role of metadata registries and will describe three prototypes, written by the Dublin Core Metadata Initiative. The article will outline how the prototypes are being used to demonstrate and evaluate application scope, functional requirements, and technology solutions for metadata registries. Metadata schema registries are, in effect, databases of schemas that can trace an historical line back to shared data dictionaries and the registration process encouraged by the ISO/IEC 11179 community. New impetus for the development of registries has come with the development activities surrounding creation of the Semantic Web. The motivation for establishing registries arises from domain and standardization communities, and from the knowledge management community. Examples of current registry activity include:
    * Agencies maintaining directories of data elements in a domain area in accordance with ISO/IEC 11179 (This standard specifies good practice for data element definition as well as the registration process. Example implementations are the National Health Information Knowledgebase hosted by the Australian Institute of Health and Welfare and the Environmental Data Registry hosted by the US Environmental Protection Agency.); * The xml.org directory of the Extended Markup Language (XML) document specifications facilitating re-use of Document Type Definition (DTD), hosted by the Organization for the Advancement of Structured Information Standards (OASIS); * The MetaForm database of Dublin Core usage and mappings maintained at the State and University Library in Goettingen; * The Semantic Web Agreement Group Dictionary, a database of terms for the Semantic Web that can be referred to by humans and software agents; * LEXML, a multi-lingual and multi-jurisdictional RDF Dictionary for the legal world; * The SCHEMAS registry maintained by the European Commission funded SCHEMAS project, which indexes several metadata element sets as well as a large number of activity reports describing metadata related activities and initiatives. Metadata registries essentially provide an index of terms. Given the distributed nature of the Web, there are a number of ways this can be accomplished. For example, the registry could link to terms and definitions in schemas published by implementers and stored locally by the schema maintainer. Alternatively, the registry might harvest various metadata schemas from their maintainers. Registries provide 'added value' to users by indexing schemas relevant to a particular 'domain' or 'community of use' and by simplifying the navigation of terms by enabling multiple schemas to be accessed from one view. An important benefit of this approach is an increase in the reuse of existing terms, rather than users having to reinvent them. Merging schemas to one view leads to harmonization between applications and helps avoid duplication of effort. Additionally, the establishment of registries to index terms actively being used in local implementations facilitates the metadata standards activity by providing implementation experience transferable to the standards-making process.
    Theme
    Semantic Web
  12. Godby, C.J.; Young, J.A.; Childress, E.: ¬A repository of metadata crosswalks (2004) 0.00 
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    Abstract
    This paper proposes a model for metadata crosswalks that associates three pieces of information: the crosswalk, the source metadata standard, and the target metadata standard, each of which may have a machine-readable encoding and human-readable description. The crosswalks are encoded as METS records that are made available to a repository for processing by search engines, OAI harvesters, and custom-designed Web services. The METS object brings together all of the information required to access and interpret crosswalks and represents a significant improvement over previously available formats. But it raises questions about how best to describe these complex objects and exposes gaps that must eventually be filled in by the digital library community.
  13. Lagoze, C.: Keeping Dublin Core simple : Cross-domain discovery or resource description? (2001) 0.00 
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    Abstract
    Reality is messy. Individuals perceive or define objects differently. Objects may change over time, morphing into new versions of their former selves or into things altogether different. A book can give rise to a translation, derivation, or edition, and these resulting objects are related in complex ways to each other and to the people and contexts in which they were created or transformed. Providing a normalized view of such a messy reality is a precondition for managing information. From the first library catalogs, through Melvil Dewey's Decimal Classification system in the nineteenth century, to today's MARC encoding of AACR2 cataloging rules, libraries have epitomized the process of what David Levy calls "order making", whereby catalogers impose a veneer of regularity on the natural disorder of the artifacts they encounter. The pre-digital library within which the Catalog and its standards evolved was relatively self-contained and controlled. Creating and maintaining catalog records was, and still is, the task of professionals. Today's Web, in contrast, has brought together a diversity of information management communities, with a variety of order-making standards, into what Stuart Weibel has called the Internet Commons. The sheer scale of this context has motivated a search for new ways to describe and index information. Second-generation search engines such as Google can yield astonishingly good search results, while tools such as ResearchIndex for automatic citation indexing and techniques for inferring "Web communities" from constellations of hyperlinks promise even better methods for focusing queries on information from authoritative sources. Such "automated digital libraries," according to Bill Arms, promise to radically reduce the cost of managing information. Alongside the development of such automated methods, there is increasing interest in metadata as a means of imposing pre-defined order on Web content. While the size and changeability of the Web makes professional cataloging impractical, a minimal amount of information ordering, such as that represented by the Dublin Core (DC), may vastly improve the quality of an automatic index at low cost; indeed, recent work suggests that some types of simple description may be generated with little or no human intervention.
    Metadata is not monolithic. Instead, it is helpful to think of metadata as multiple views that can be projected from a single information object. Such views can form the basis of customized information services, such as search engines. Multiple views -- different types of metadata associated with a Web resource -- can facilitate a "drill-down" search paradigm, whereby people start their searches at a high level and later narrow their focus using domain-specific search categories. In Figure 1, for example, Mona Lisa may be viewed from the perspective of non-specialized searchers, with categories that are valid across domains (who painted it and when?); in the context of a museum (when and how was it acquired?); in the geo-spatial context of a walking tour using mobile devices (where is it in the gallery?); and in a legal framework (who owns the rights to its reproduction?). Multiple descriptive views imply a modular approach to metadata. Modularity is the basis of metadata architectures such as the Resource Description Framework (RDF), which permit different communities of expertise to associate and maintain multiple metadata packages for Web resources. As noted elsewhere, static association of multiple metadata packages with resources is but one way of achieving modularity. Another method is to computationally derive order-making views customized to the current needs of a client. This paper examines the evolution and scope of the Dublin Core from this perspective of metadata modularization. Dublin Core began in 1995 with a specific goal and scope -- as an easy-to-create and maintain descriptive format to facilitate cross-domain resource discovery on the Web. Over the years, this goal of "simple metadata for coarse-granularity discovery" came to mix with another goal -- that of community and domain-specific resource description and its attendant complexity. A notion of "qualified Dublin Core" evolved whereby the model for simple resource discovery -- a set of simple metadata elements in a flat, document-centric model -- would form the basis of more complex descriptions by treating the values of its elements as entities with properties ("component elements") in their own right.
    At the time of writing, the Dublin Core Metadata Initiative (DCMI) has clarified its commitment to the simple approach. The qualification principles announced in early 2000 support the use of DC elements as the basis for simple statements about resources, rather than as the foundation for more descriptive clauses. This paper takes a critical look at some of the issues that led up to this renewed commitment to simplicity. We argue that: * There remains a compelling need for simple, "pidgin" metadata. From a technical and economic perspective, document-centric metadata, where simple string values are associated with a finite set of properties, is most appropriate for generic, cross-domain discovery queries in the Internet Commons. Such metadata is not necessarily fixed in physical records, but may be projected algorithmically from more complex metadata or from content itself. * The Dublin Core, while far from perfect from an engineering perspective, is an acceptable standard for such simple metadata. Agreements in the global information space are as much social as technical, and the process by which the Dublin Core has been developed, involving a broad cross-section of international participants, is a model for such "socially developed" standards. * Efforts to introduce complexity into Dublin Core are misguided. Complex descriptions may be necessary for some Web resources and for some purposes, such as administration, preservation, and reference linking. However, complex descriptions require more expressive data models that differentiate between agents, documents, contexts, events, and the like. An attempt to intermix simplicity and complexity, and the data models most appropriate for them, defeats the equally noble goals of cross-domain description and extensive resource description. * The principle of modularity suggests that metadata formats tailored for simplicity be used alongside others tailored for complexity.
  14. Dillon, M.: Metadata for Web resources : how metadata works on the Web (2000) 0.00 
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  15. Understanding metadata (2004) 0.00 
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    Abstract
    Metadata (structured information about an object or collection of objects) is increasingly important to libraries, archives, and museums. And although librarians are familiar with a number of issues that apply to creating and using metadata (e.g., authority control, controlled vocabularies, etc.), the world of metadata is nonetheless different than library cataloging, with its own set of challenges. Therefore, whether you are new to these concepts or quite experienced with classic cataloging, this short (20 pages) introductory paper on metadata can be helpful
    Date
    10. 9.2004 10:22:40
    Imprint
    Washington, DC : National Information Standards Organization
  16. McCallum, S.M.: Extending MARC for bibliographic control in the Web environment : Challenges and alternatives (2000) 0.00 
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  17. Frodl, C.; Gros, A.; Rühle, S.: Übersetzung des Singapore Framework für Dublin-Core-Anwendungsprofile (2009) 0.00 
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    Abstract
    Das Singapore Framework für Dublin-Core-Anwendungsprofile nennt die Rahmenbedingungen um Metadatenanwendungen möglichst interoperabel zu gestalten und so zu dokumentieren, dass sie nachnutzbar sind. Es definiert die Komponenten, die erforderlich und hilfreich sind, um ein Anwendungsprofil zu dokumentieren und es beschreibt, wie sich diese dokumentarischen Standards gegenüber Standard-Domain-Modellen und den Semantic-Web-Standards verhalten. Das Singapore Framework ist die Grundlage für die Beurteilung von Anwendungsprofilen in Hinblick auf Vollständigkeit der Dokumentation und auf Übereinstimmung mit den Prinzipien der Web-Architektur. Dieses Dokument bietet eine kurze Übersicht über das Singapore Framework. Weitere Dokumente, die als Anleitung für die Erstellung der erforderlichen Dokumentation dienen, sind in Planung.
  18. Golub, K.; Moon, J.; Nielsen, M.L.; Tudhope, D.: EnTag: Enhanced Tagging for Discovery (2008) 0.00 
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    Abstract
    Purpose: Investigate the combination of controlled and folksonomy approaches to support resource discovery in repositories and digital collections. Aim: Investigate whether use of an established controlled vocabulary can help improve social tagging for better resource discovery. Objectives: (1) Investigate indexing aspects when using only social tagging versus when using social tagging with suggestions from a controlled vocabulary; (2) Investigate above in two different contexts: tagging by readers and tagging by authors; (3) Investigate influence of only social tagging versus social tagging with a controlled vocabulary on retrieval. - Vgl.: http://www.ukoln.ac.uk/projects/enhanced-tagging/.
  19. Weibel, S.L.; Koch, T.: ¬The Dublin Core Metatdata Initiative : mission, current activities, and future directions (2000) 0.00 
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    Abstract
    Metadata is a keystone component for a broad spectrum of applications that are emerging on the Web to help stitch together content and services and make them more visible to users. The Dublin Core Metadata Initiative (DCMI) has led the development of structured metadata to support resource discovery. This international community has, over a period of 6 years and 8 workshops, brought forth: * A core standard that enhances cross-disciplinary discovery and has been translated into 25 languages to date; * A conceptual framework that supports the modular development of auxiliary metadata components; * An open consensus building process that has brought to fruition Australian, European and North American standards with promise as a global standard for resource discovery; * An open community of hundreds of practitioners and theorists who have found a common ground of principles, procedures, core semantics, and a framework to support interoperable metadata. The 8th Dublin Core Metadata Workshop capped an active year of progress that included standardization of the 15-element core foundation and approval of an initial array of Dublin Core Qualifiers. While there is important work to be done to promote stability and increased adoption of the Dublin Core, the time has come to look beyond the core elements towards a broader metadata agenda. This report describes the new mission statement of the Dublin Core Metadata Initiative (DCMI) that supports the agenda, recapitulates the important milestones of the year 2000, outlines activities of the 8th DCMI workshop in Ottawa, and summarizes the 2001 workplan.
  20. ¬The Dublin Core Metadata Element Set (2007) 0.00 
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    Abstract
    Defines fifteen metadata elements for resource description in a cross-disciplinary information environment
    Editor
    National Information Standards Organization

Authors

Languages

  • e 27
  • d 2

Types

  • a 16
  • n 1

Themes