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  • × theme_ss:"Verteilte bibliographische Datenbanken"
  1. Zia, L.L.: ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) Program : new projects from fiscal year 2004 (2005) 0.00 
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    Abstract
    In fall 2004, the National Science Foundation's (NSF) National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) program made new grants in three tracks: Pathways, Services, and Targeted Research. Together with projects started in fiscal years (FY) 2000-03 these new grants continue the development of a national digital library of high quality educational resources to support learning at all levels in science, technology, engineering, and mathematics (STEM). By enabling broad access to reliable and authoritative learning and teaching materials and associated services in a digital environment, the National Science Digital Library expects to promote continual improvements in the quality of formal STEM education, and also to serve as a resource for informal and lifelong learning. Proposals for the FY05 funding cycle are due April 11, 2005, and the full solicitation is available at <http://www.nsf.gov/publications/pub_summ.jsp?ods_key=nsf05545>. Two NSF directorates, the Directorate for Geosciences (GEO) and the Directorate for Mathematical and Physical Sciences (MPS) have both provided significant co-funding for over twenty projects in the first four years of the program, illustrating the NSDL program's facilitation of the integration of research and education, an important strategic objective of the NSF. In FY2004, the NSDL program introduced a new Pathways track, replacing the earlier Collections track. The Services track strongly encouraged two particular types of projects: (1) selection services and (2) usage development workshops. * Pathways projects provide stewardship for educational content and services needed by a broad community of learners; * Selection services projects identify and increase the high-quality STEM educational content known to NSDL; and * Usage development workshops engage new communities of learners in the use of NSDL and its resources.
    These three elements reflect a refinement of NSDL's initial emphasis on collecting educational resources, materials, and other digital learning objects, towards enabling learners to "connect" or otherwise find pathways to resources appropriate to their needs. Projects are also developing both the capacities of individual users and the capacity of larger communities of learners to use and contribute to NSDL. For the FY2004 funding cycle, one hundred forty-four proposals sought approximately $126.5 million in total funding. Twenty-four new awards were made with a cumulative budget of approximately $10.2 million. These include four in the Pathways track, twelve in the Services track, and eight in the Targeted Research track. As in the earlier years of the program, sister directorates to the NSF Directorate for Education and Human Resources (EHR) are providing significant co-funding of projects. Participating directorates for FY2004 are GEO and MPS. Within EHR, the Advanced Technological Education program and the Experimental Program to Stimulate Competitive Research are also co-funding projects. Complete information on the technical and organizational progress of NSDL including links to current Standing Committees and community workspaces may be found at <http://nsdl.org/community/nsdlgroups.php>. All workspaces are open to the public, and interested organizations and individuals are encouraged to learn more about NSDL and join in its development. Following is a list of the new FY04 awards displaying the official NSF award number, the project title, the grantee institution, and the name of the Principal Investigator (PI). A condensed description of the project is also included. Full abstracts are available from the NSDL program site (under Related URLs see the link to NSDL program site (under Related URLs see the link to Abstracts of Recent Awards Made Through This Program.) The projects are displayed by track and are listed by award number. In addition, seven of these projects have explicit relevance to applications to pre-K to 12 education (indicated with a * below). Four others have clear potential for application to the pre-K to 12 arena (indicated with a ** below).
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  2. Park, S.: Usability, user preferences, effectiveness, and user behaviors when searching individual and integrated full-text databases : implications for digital libraries (2000) 0.00 
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    Abstract
    This article addresses a crucial issue in the digital library environment: how to support effective interaction of users with heterogeneous and distributed information resources. In particular, this study compared usability, user preference, effectiveness, and searching behaviors in systems that implement interaction with multiple databases as if they were one (integrated interaction) in a experiment in the TREC environment. 28 volunteers were recruited from the graduate students of the School of Communication, Information & Library Studies at Rutgers University. Significantly more subjects preferred the common interface to the integrated interface, mainly because they could have more control over database selection. Subjects were also more satisfied with the results from the common interface, and performed better with the common interface than with the integrated interface. Overall, it appears that for this population, interacting with databases through a common interface is preferable on all grounds to interacting with databases through an integrated interface. These results suggest that: (1) the general assumption of the information retrieval (IR) literature that an integrated interaction is best needs to be revisited; (2) it is important to allow for more user control in the distributed environment; (3) for digital library purposes, it is important to characterize different databases to support user choice for integration; and (4) certain users prefer control over database selection while still opting for results to be merged
    Type
    a
  3. Kuberek, M.: ¬Der Kooperative Bibliotheksverbund Berlin-Brandenburg (KOBV) : Ein innovatives Verbundkonzept für die Region (2000) 0.00 
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  4. Holm, L.A.: ONE project : results and experiences (1999) 0.00 
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  5. Krause, J.: Sacherschließung in virtuellen Bibliotheken : Standardisierung versus Heterogenität (2000) 0.00 
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  6. Diedrichs, R.; Goebel, R.: K10plus - Technik und Entwicklung (2020) 0.00 
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  7. Laegreid, J.A.: ¬The Nordic SR-net project : implementation of the SR/Z39.50 standards in the Nordic countries (1994) 0.00 
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    Source
    Resource sharing: new technologies as a must for Universal Availability of Information. Proceedings of the 16th International Essen Symposium, 18-21 Oct 1993. Ed.: A.H. Helal u. J.W. Weiss
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  8. Quast, A.; Pfurr, N.: GEO-LEO setzt Open-Access-Prinzipien für die geowissenschaftliche Fachgemeinschaft um (2006) 0.00 
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  9. Krause, J.: Heterogenität und Integration : Zur Weiterentwicklung von Inhaltserschließung und Retrieval in sich veränderten Kontexten (2001) 0.00 
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    Abstract
    As an important support tool in science research, specialized information systems are rapidly changing their character. The potential for improvement compared with today's usual systems is enormous. This fact will be demonstrated by means of two problem complexes: - WWW search engines, which were developed without any government grants, are increasingly dominating the scene. Does the WWW displace information centers with their high quality databases? What are the results we can get nowadays using general WWW search engines? - In addition to the WWW and specialized databases, scientists now use WWW library catalogues of digital libraries, which combine the catalogues from an entire region or a country. At the same time, however, they are faced with highly decentralized heterogeneous databases which contain the widest range of textual sources and data, e.g. from surveys. One consequence is the presence of serious inconsistencies in quality, relevance and content analysis. Thus, the main problem to be solved is as follows: users must be supplied with heterogeneous data from different sources, modalities and content development processes via a visual user interface without inconsistencies in content development, for example, seriously impairing the quality of the search results, e. g. when phrasing their search inquiry in the terminology to which they are accustomed
    Type
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  10. Vikor, D.L.; Gaumond, G.; Heath, F.M.: Building electronic cooperation in the 1990s : the Maryland, Georgia, and Texas experiences (1997) 0.00 
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    Abstract
    During the 1990s statewide cooperative use of networks in the USA has moved towards providing mainly access to bibliographic and full-text resources not held locally and usually provided by commercial vendors for use by libraries. Describes 3 academic library networks: the University System of Maryland's Library Information Management System serving the information needs of users throughout the state; Georgia's GALILEO (Georgia Library Learning On-Line) which provides a set of electronic resources and services for the 34 colleges and universities of the University System of Georgia; and TexShare in which all 52 libraries from the public educational institutions in Texas participate. Although the development of funding sources, the technical implementations and support, and the management organization differ from state to state, all three reflect an incremental shift towards the electronic library
    Type
    a
  11. Imhof, A.; Malo, M.: Aufbau einer verteilten Fachredaktion für freie Internet-Ressourcen im KOBV-Portal (2005) 0.00 
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  12. Hakala, J.: Z39.50-1995: information retrieval protocol : an introduction to the standard and it's usage (1996) 0.00 
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    Abstract
    This article describes the Internet information retrieval protocol, Z39.50, and it's usage. The services of Z39.50 are depicted, as are some important terms related to the standard. A description of the OPAC Network in Europe (ONE), an important Z39.50 implementation project is included
  13. Duda, L.E.; Rioux, M.A.: ¬One library, one bib record : two opacs, two systems (1998) 0.00 
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  14. Hellweg, H.; Krause, J.; Mandl, T.; Marx, J.; Müller, M.N.O.; Mutschke, P.; Strötgen, R.: Treatment of semantic heterogeneity in information retrieval (2001) 0.00 
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    Abstract
    Nowadays, users of information services are faced with highly decentralised, heterogeneous document sources with different content analysis. Semantic heterogeneity occurs e.g. when resources using different systems for content description are searched using a simple query system. This report describes several approaches of handling semantic heterogeneity used in projects of the German Social Science Information Centre
  15. Lügger, J.: Offene Navigation und Suchmaschinen in Verbünden, Konsortien und den Wissenschaften (2004) 0.00 
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  16. Mönnich, M.; Dierolf, U.: 20 Jahre Karlsruher virtueller Katalog (KVK) (2016) 0.00 
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  17. Strötgen, R.; Kokkelink, S.: Metadatenextraktion aus Internetquellen : Heterogenitätsbehandlung im Projekt CARMEN (2001) 0.00 
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    Abstract
    Die Sonderfördermaßnahme CARMEN (Content Analysis, Retrieval and Metadata: Effective Networking) zielt im Rahmen des vom BMB+F geförderten Programms GLOBAL INFO darauf ab, in der heutigen dezentralen Informationsweit geeignete Informationssysteme für die verteilten Datenbestände in Bibliotheken, Fachinformationszentren und im Internet zu schaffen. Diese Zusammenführung ist weniger technisch als inhaltlich und konzeptuell problematisch. Heterogenität tritt beispielsweise auf, wenn unterschiedliche Datenbestände zur Inhaltserschließung verschiedene Thesauri oder Klassifikationen benutzen, wenn Metadaten unterschiedlich oder überhaupt nicht erfasst werden oder wenn intellektuell aufgearbeitete Quellen mit in der Regel vollständig unerschlossenen Internetdokumenten zusammentreffen. Im Projekt CARMEN wird dieses Problem mit mehreren Methoden angegangen: Über deduktiv-heuristische Verfahren werden Metadaten automatisch aus Dokumenten generiert, außerdem lassen sich mit statistisch-quantitativen Methoden die unterschiedlichen Verwendungen von Termen in den verschiedenen Beständen aufeinander abbilden, und intellektuell erstellte Crosskonkordanzen schaffen sichere Übergänge von einer Dokumentationssprache in eine andere. Für die Extraktion von Metadaten gemäß Dublin Core (v. a. Autor, Titel, Institution, Abstract, Schlagworte) werden anhand typischer Dokumente (Dissertationen aus Math-Net im PostScript-Format und verschiedenste HTML-Dateien von WWW-Servern deutscher sozialwissenschaftlicher Institutionen) Heuristiken entwickelt. Die jeweilige Wahrscheinlichkeit, dass die so gewonnenen Metadaten korrekt und vertrauenswürdig sind, wird über Gewichte den einzelnen Daten zugeordnet. Die Heuristiken werden iterativ in ein Extraktionswerkzeug implementiert, getestet und verbessert, um die Zuverlässigkeit der Verfahren zu erhöhen. Derzeit werden an der Universität Osnabrück und im InformationsZentrum Sozialwissenschaften Bonn anhand mathematischer und sozialwissenschaftlicher Datenbestände erste Prototypen derartiger Transfermodule erstellt
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  18. Woldering, B.: EU-Projekt The European Library (TEL) erfolgreich abgeschlossen (2004) 0.00 
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Authors

Years

Languages

  • e 59
  • d 36
  • f 1
  • More… Less…

Types

  • a 92
  • el 10
  • m 2
  • r 1
  • s 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications