Search (26 results, page 1 of 2)

  • × theme_ss:"Semantische Interoperabilität"
  • × year_i:[2000 TO 2010}
  • × type_ss:"a"
  1. Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005) 0.03
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    Content
    Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
  2. Zhang, X.: Concept integration of document databases using different indexing languages (2006) 0.02
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    Abstract
    An integrated information retrieval system generally contains multiple databases that are inconsistent in terms of their content and indexing. This paper proposes a rough set-based transfer (RST) model for integration of the concepts of document databases using various indexing languages, so that users can search through the multiple databases using any of the current indexing languages. The RST model aims to effectively create meaningful transfer relations between the terms of two indexing languages, provided a number of documents are indexed with them in parallel. In our experiment, the indexing concepts of two databases respectively using the Thesaurus of Social Science (IZ) and the Schlagwortnormdatei (SWD) are integrated by means of the RST model. Finally, this paper compares the results achieved with a cross-concordance method, a conditional probability based method and the RST model.
  3. Stempfhuber, M.; Zapilko, B.: Modelling text-fact-integration in digital libraries (2009) 0.01
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    Abstract
    Digital Libraries currently face the challenge of integrating many different types of research information (e.g. publications, primary data, expert's profiles, institutional profiles, project information etc.) according to their scientific users' needs. To date no general, integrated model for knowledge organization and retrieval in Digital Libraries exists. This causes the problem of structural and semantic heterogeneity due to the wide range of metadata standards, indexing vocabularies and indexing approaches used for different types of information. The research presented in this paper focuses on areas in which activities are being undertaken in the field of Digital Libraries in order to treat semantic interoperability problems. We present a model for the integrated retrieval of factual and textual data which combines multiple approaches to semantic interoperability und sets them into context. Embedded in the research cycle, traditional content indexing methods for publications meet the newer, but rarely used ontology-based approaches which seem to be better suited for representing complex information like the one contained in survey data. The benefits of our model are (1) easy re-use of available knowledge organisation systems and (2) reduced efforts for domain modelling with ontologies.
  4. Boteram, F.; Hubrich, J.: Towards a comprehensive international Knowledge Organization System (2008) 0.01
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    Date
    22. 9.2008 19:30:41
  5. Hubrich, J.; Mengel, T.; Müller, K.; Jacobs, J.-H.: Improving subject access in global information spaces : reflections upon internationalization and localization of Knowledge Organization Systems (KOS) (2008) 0.01
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    Abstract
    With the establishment of global information spaces that are characterized by heterogeneity new kinds of knowledge organization systems (KOS) are needed to facilitate efficient subject access to available information resources. KOS need not to be built bottom-up. Internationalization and localization of common KOS enable making use of all different kinds of existing data from subject indexing for retrieval purposes and help creating a user-friendly tool that supports cross-national query modification and hermeneutic processes of information seeking as well as precise topical queries.
    Source
    New pespectives on subject indexing and classification: essays in honour of Magda Heiner-Freiling. Red.: K. Knull-Schlomann, u.a
  6. Svensson, L.G.: Unified access : a semantic Web based model for multilingual navigation in heterogeneous data sources (2008) 0.01
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    Abstract
    Most online library catalogues are not well equipped for subject search. On the one hand it is difficult to navigate the structures of the thesauri and classification systems used for indexing. Further, there is little or no support for the integration of crosswalks between different controlled vocabularies, so that a subject search query formulated using one controlled vocabulary will not find resources indexed with another knowledge organisation system even if there exists a crosswalk between them. In this paper we will look at SemanticWeb technologies and a prototype system leveraging those technologies in order to enhance the subject search possibilities in heterogeneously indexed repositories. Finally, we will have a brief look at different initiatives aimed at integrating library data into the SemanticWeb.
    Source
    New pespectives on subject indexing and classification: essays in honour of Magda Heiner-Freiling. Red.: K. Knull-Schlomann, u.a
  7. Landry, P.: ¬The evolution of subject heading languages in Europe and their impact on subject access interoperability (2008) 0.01
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    Abstract
    Work in establishing interoperability between Subject Heading Languages (SHLs) in Europe is fairly recent and much work is still needed before users can successfully conduct subject searches across information resources in European libraries. Over the last 25 years many subject heading lists were created or developed from existing ones. Obstacles for effective interoperability have been progressively lifted which has paved the way for interoperability projects to achieve some encouraging results. This paper will look at interoperability approaches in the area of subject indexing tools and will present a short overview of the development of European SHLs. It will then look at the conditions necessary for effective and comprehensive interoperability using the method of linking subject headings, as used by the »Multilingual Access to Subject Headings project« (MACS).
    Source
    New pespectives on subject indexing and classification: essays in honour of Magda Heiner-Freiling. Red.: K. Knull-Schlomann, u.a
  8. Gödert, W.: Ontological spine, localization and multilingual access : some reflections and a proposal (2008) 0.01
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    Source
    New pespectives on subject indexing and classification: essays in honour of Magda Heiner-Freiling. Red.: K. Knull-Schlomann, u.a
  9. Hubrich, J.: CrissCross: SWD-DDC-Mapping (2008) 0.01
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    Date
    22. 8.2009 10:35:21
  10. Nicholson, D.; Wake, S.: HILT: subject retrieval in a distributed environment (2003) 0.01
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    Source
    Subject retrieval in a networked environment: Proceedings of the IFLA Satellite Meeting held in Dublin, OH, 14-16 August 2001 and sponsored by the IFLA Classification and Indexing Section, the IFLA Information Technology Section and OCLC. Ed.: I.C. McIlwaine
  11. Mayr, P.; Petras, V.: Building a Terminology Network for Search : the KoMoHe project (2008) 0.01
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    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  12. Schneider, R.: Web 3.0 ante portas? : Integration von Social Web und Semantic Web (2008) 0.01
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    Date
    22. 1.2011 10:38:28
  13. Heflin, J.; Hendler, J.: Semantic interoperability on the Web (2000) 0.01
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    Date
    11. 5.2013 19:22:18
  14. Tudhope, D.; Binding, C.: Toward terminology services : experiences with a pilot Web service thesaurus browser (2006) 0.01
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    Abstract
    Dublin Core recommends controlled terminology for the subject of a resource. Knowledge organization systems (KOS), such as classifications, gazetteers, taxonomies and thesauri, provide controlled vocabularies that organize and structure concepts for indexing, classifying, browsing and search. For example, a thesaurus employs a set of standard semantic relationships (ISO 2788, ISO 5964), and major thesauri have a large entry vocabulary of terms considered equivalent for retrieval purposes. Many KOS have been made available for Web-based access. However, they are often not fully integrated into indexing and search systems and the full potential for networked and programmatic access remains untapped. The lack of standardized access and interchange formats impedes wider use of KOS resources. We developed a Web demonstrator (www.comp.glam.ac.uk/~FACET/webdemo/) for the FACET project (www.comp.glam.ac.uk/~facet/facetproject.html) that explored thesaurus-based query expansion with the Getty Art and Architecture Thesaurus. A Web demonstrator was implemented via Active Server Pages (ASP) with server-side scripting and compiled server-side components for database access, and cascading style sheets for presentation. The browser-based interactive interface permits dynamic control of query term expansion. However, being based on a custom thesaurus representation and API, the techniques cannot be applied directly to thesauri in other formats on the Web. General programmatic access requires commonly agreed protocols, for example, building on Web and Grid services. The development of common KOS representation formats and service protocols are closely linked. Linda Hill and colleagues argued in 2002 for a general KOS service protocol from which protocols for specific types of KOS can be derived. Thus, in the future, a combination of thesaurus and query protocols might permit a thesaurus to be used with a choice of search tools on various kinds of databases. Service-oriented architectures bring an opportunity for moving toward a clearer separation of interface components from the underlying data sources. In our view, basing distributed protocol services on the atomic elements of thesaurus data structures and relationships is not necessarily the best approach because client operations that require multiple client-server calls would carry too much overhead. This would limit the interfaces that could be offered by applications following such a protocol. Advanced interactive interfaces require protocols that group primitive thesaurus data elements (via their relationships) into composites to achieve reasonable response.
  15. Levergood, B.; Farrenkopf, S.; Frasnelli, E.: ¬The specification of the language of the field and interoperability : cross-language access to catalogues and online libraries (CACAO) (2008) 0.01
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    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  16. Bittner, T.; Donnelly, M.; Winter, S.: Ontology and semantic interoperability (2006) 0.01
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    Date
    3.12.2016 18:39:22
  17. Doerr, M.: Semantic problems of thesaurus mapping (2001) 0.01
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    Abstract
    With networked information access to heterogeneous data sources, the problem of terminology provision and interoperability of controlled vocabulary schemes such as thesauri becomes increasingly urgent. Solutions are needed to improve the performance of full-text retrieval systems and to guide the design of controlled terminology schemes for use in structured data, including metadata. Thesauri are created in different languages, with different scope and points of view and at different levels of abstraction and detail, to accomodate access to a specific group of collections. In any wider search accessing distributed collections, the user would like to start with familiar terminology and let the system find out the correspondences to other terminologies in order to retrieve equivalent results from all addressed collections. This paper investigates possible semantic differences that may hinder the unambiguous mapping and transition from one thesaurus to another. It focusses on the differences of meaning of terms and their relations as intended by their creators for indexing and querying a specific collection, in contrast to methods investigating the statistical relevance of terms for objects in a collection. It develops a notion of optimal mapping, paying particular attention to the intellectual quality of mappings between terms from different vocabularies and to problems of polysemy. Proposals are made to limit the vagueness introduced by the transition from one vocabulary to another. The paper shows ways in which thesaurus creators can improve their methodology to meet the challenges of networked access of distributed collections created under varying conditions. For system implementers, the discussion will lead to a better understanding of the complexity of the problem
  18. Krause, J.: Shell Model, Semantic Web and Web Information Retrieval (2006) 0.01
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    Abstract
    The middle of the 1990s are coined by the increased enthusiasm for the possibilities of the WWW, which has only recently deviated - at least in relation to scientific information - for the differentiated measuring of its advantages and disadvantages. Web Information Retrieval originated as a specialized discipline with great commercial significance (for an overview see Lewandowski 2005). Besides the new technological structure that enables the indexing and searching (in seconds) of unimaginable amounts of data worldwide, new assessment processes for the ranking of search results are being developed, which use the link structures of the Web. They are the main innovation with respect to the traditional "mother discipline" of Information Retrieval. From the beginning, link structures of Web pages are applied to commercial search engines in a wide array of variations. From the perspective of scientific information, link topology based approaches were in essence trying to solve a self-created problem: on the one hand, it quickly became clear that the openness of the Web led to an up-tonow unknown increase in available information, but this also caused the quality of the Web pages searched to become a problem - and with it the relevance of the results. The gatekeeper function of traditional information providers, which narrows down every user query to focus on high-quality sources was lacking. Therefore, the recognition of the "authoritativeness" of the Web pages by general search engines such as Google was one of the most important factors for their success.
  19. Krause, J.: Semantic heterogeneity : comparing new semantic web approaches with those of digital libraries (2008) 0.01
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    Abstract
    Purpose - To demonstrate that newer developments in the semantic web community, particularly those based on ontologies (simple knowledge organization system and others) mitigate common arguments from the digital library (DL) community against participation in the Semantic web. Design/methodology/approach - The approach is a semantic web discussion focusing on the weak structure of the Web and the lack of consideration given to the semantic content during indexing. Findings - The points criticised by the semantic web and ontology approaches are the same as those of the DL "Shell model approach" from the mid-1990s, with emphasis on the centrality of its heterogeneity components (used, for example, in vascoda). The Shell model argument began with the "invisible web", necessitating the restructuring of DL approaches. The conclusion is that both approaches fit well together and that the Shell model, with its semantic heterogeneity components, can be reformulated on the semantic web basis. Practical implications - A reinterpretation of the DL approaches of semantic heterogeneity and adapting to standards and tools supported by the W3C should be the best solution. It is therefore recommended that - although most of the semantic web standards are not technologically refined for commercial applications at present - all individual DL developments should be checked for their adaptability to the W3C standards of the semantic web. Originality/value - A unique conceptual analysis of the parallel developments emanating from the digital library and semantic web communities.
  20. Altenhöner, R; Hengel, C.; Jahns, Y.; Junger, U.; Mahnke, C.; Oehlschläger, S.; Werner, C.: Weltkongress Bibliothek und Information, 74. IFLA-Generalkonferenz in Quebec, Kanada : Aus den Veranstaltungen der Division IV Bibliographic Control, der Core Activities ICADS und UNIMARC sowie der Information Technology Section (2008) 0.01
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    Abstract
    Der 74. Weltkongress der International Federation of Library Associations and Institutions (IFLA) hat vom 10. bis 14. August 2008 unter dem Motto "Libraries without borders: Navigating towards global understanding" in Quebec, Kanada, stattgefunden. Dort trafen sich mehr als 3000 Bibliothekarinnen und Bibliothekare aus 150 Ländern der Welt zu insgesamt 224 Veranstaltungen und verschiedenen Satellitenkonferenzen. Die IFLA-Präsidentin Prof. Dr. Claudia Lux aus Berlin leitete die Tagung und war gleichzeitig prominenteste Vertreterin der deutschen Delegation, die aus mehr als 80 Kolleginnen und Kollegen bestand und damit im Vergleich zum Vorjahr erfreulich groß war. Wer nicht dabei sein konnte und sich dennoch einen Eindruck über die Konferenz und die Atmosphäre verschaffen möchte, kann dies online tun. Neben dem Programm und einer Vielzahl von Vorträgen sind auf der Website der IFLA auch Links zu Fotos, Videos und Blogs vorhanden. Innerhalb der IFLA wird derzeit an einer Neuorganisation und damit verbunden einer neuen Satzung gearbeitet, unter anderem sollen auch der interne und externe Informationsfluss verbessert werden. Dazu soll Anfang 2009 eine neu gestaltete Website mit einem Content Managementsystem frei geschaltet werden. Das Design der neuen Site wurde in Quebec vorgestellt, eine Präsentation ist im IFLAnet zu finden. Wie in den vergangenen Jahren soll auch in diesem Jahr über die Veranstaltungen der Division IV Bibliographic Control mit ihren Sektionen Bibliography, Cataloguing, Classification and Indexing sowie Knowledge Managament berichtet werden.
    Content
    Classification and Indexing Section (Sektion Klassifikation und Indexierung) Deutsches Mitglied im Ständigen Ausschuss der Sektion: Yvonne Jahns (2005-2009; Deutsche Nationalbibliothek) Die Sektion, die sich als Forum für den internationalen Austausch über Methoden der Inhaltserschließung und die Bedeutung des sachlichen Zugangs zu Dokumenten und Wissen versteht, wartete in Quebec mit einem interessanten Vortragprogramm auf. Drei Präsentationen näherten sich dem Thema "Classification and indexing without language borders" von unterschiedlichen Seiten. Anila Angjeli von der Bibliotheque nationale de France (BnF) präsentierte Arbeiten aus dem Projekt STITCH", das sich mit semantischen Suchen in unterschiedlich erschlossenen Beständen von Kulturerbeinstitutionen beschäftigt. Die verwendeten Thesauri und Klassifikationen wurden mittels SKOS in ein vergleichbares Format überführt und stehen so als Semantic-Web-Anwendung zur Recherche bereit. Die Funktionsweise erläuterte Anila Angjeli sehr bildreich durch Beispiel-suchen nach mittelalterlichen Handschriften der BnF und der Königlichen Bibliothek der Niederlande. Vivien Petras vom GESIS Informationszentrum Sozialwissenschaften, Bonn, sprach über die Vielzahl der intellektuell erstellten Crosskonkordanzen zwischen Thesauri in den Sozialwissenschaften. Sie stellte dabei die Evaluierung der KOMOHE-Projektergebnisse vor und konnte die Verbesserung der Suchergebnisse anschaulich machen, die man durch Hinzuziehen der Konkordanzen in der Recherche über heterogen erschlossene Bestände erreicht. Schließlich präsentierte Michael Kreyche von der Kent State University, Ohio/USA, seinen eindrucksvollen jahrelangen Einsatz für die Zugänglichkeit englisch-spanischer Schlagwörter. Im Projekt Icsh-es.org gelang es, viele Vorarbeiten von amerikanischen und spanischen Bibliotheken zusammenzutragen, um eine Datenbank spanischer Entsprechungen der Library of Congress Subject Headings aufzubauen. Diese soll Indexierern helfen und natürlich den vielen spanisch-sprachigen Bibliotheksbenutzern in den USA zugute kommen. Spanisch ist nicht nur eine der meistgesprochenen Sprachen der Welt, sondern aufgrund der zahlreichen Einwanderer in die USA für die Bibliotheksarbeit von großer Wichtigkeit.
    Am Programm für den nächsten Weltkongress arbeitet der Ständige Ausschuss bereits. Es steht unter dem Motto "Foundations to Build Future Subject Access". Geplant ist auch eine Satellitenkonferenz, die am 20. und 21. August 2009 in Florenz unter dem Titel "Past Lessons, Future Challenges in Subject Access" stattfindet, zu der alle an Klassifikationen und Indexierungsprozessen Interessierte herzlich eingeladen sind. Die Arbeitsgruppen der Sektion trafen sich in Quebec, konnten jedoch bislang keine abschließenden Ergebnisse vorlegen. So sind bisher weder die Richtlinien für multilinguale Thesauri redigiert und publiziert, noch ist mit dem Erscheinen der Richtlinien für Sacherschließungsdaten in Nationalbibliografien vor 2009 zu rechnen. Die Teilnehmer verständigten sich darauf, dass die Weiterarbeit an einem multilingualen Wörterbuch zur Katalogisierung im Zeitalter von FRBR und RDA wichtiger denn je ist. Nach dem Release der neuen IFLA-Website soll dieses Online-Nachschlagewerk auf den Webseiten eine Heimat finden und wartet auf die Mitarbeit von Katalogisierern aus aller Welt. Die Arbeitsgruppe zu den Functional Requirements for Subject Authority Records (FRSAR) traf sich 2008 mehrfach und stellte zuletzt während der Konferenz der International Society of Knowledge Organization (ISKO) in Montreal ihre Arbeitsergebnisse zur Diskussion. Leider sind keine aktuellen Papiere zu den FRSAR online verfügbar. Ein internationales Stellungnahmeverfahren zu dem Modell zu Katalogisaten von Themen von Werken im Rahmen des FRBR-Modells kann jedoch 2009 erwartet werden. Mehr Informationen dazu gibt es z.B. in der neuen Publikation "New Perspectives on Subject Indexing and Classification", einer Gedenkschrift für die verstorbene Kollegin und ehemaliges Mitglied des Ständigen Ausschusses, Magda Heiner-Freiling. Die Idee dazu entstand während des IFLA-Kongresses in Durban. Dank der zahlreichen Beitragenden aus aller Welt gelang es, im Laufe des vergangenen Jahres eine interessante Sammlung rund um die Themen DDC, verbale Sacherschließung, Terminologiearbeit und multilinguale sachliche Suchen zusammenzustellen.