Search (24 results, page 1 of 2)

  • × theme_ss:"Verteilte bibliographische Datenbanken"
  1. Stark, T.: ¬The Net and Z39.50 : toward a virtual union catalog (1997) 0.11
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    Abstract
    The State Library of Iowa, USA, received a Higher Education Act title II grant from the US Dept. of Education in 1994 to create a demonstration project of new library information technologies. Describes 2 interlinked components of the project: Web-based union catalogue development and statewide deployment of the ANSI/NISO Z39.50 standard for database search and retrieval. Z39.50 was chosen because of its ability to searching multiple remote databases in a single session and its common interface across a variety of implementations. Use of a distributed Z39.50 search makes the need for maintaining large union catalogues unnecessary
  2. Burrows, T.: ¬The virtual catalogue : bibliographic access for the virtual library (1993) 0.07
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    Abstract
    Proposes a new model for bibliographic access, the virtual catalogue, to serve the virtual library. Suggests the use of current software and networks to build links between bibliographic databases of all kinds, including full text, to enable the user to search a specified subset of databases. Suggests that local data be limited to holdings information linked to, but separate from, bibliographic databases both local and remote
    Date
    8.10.2000 14:47:22
  3. Lunau, C.D.: Z39.50: a critical component of the Canadian resource sharing infrastructure : implementation activities and results achieved (1997) 0.05
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    Abstract
    A decentralized resource sharing environment has been a key strategic initiative of the National Library of Canada for many years. The use of open system communication and ISO standards is one of the cornerstones of this vision of the Canadian library service. Summarizes Canadian Z39.50 implementation activities and the major role played by the National Library of Canada. Highlights the achievements and findings of the virtual Canadian union catalogue (vCuc) pilot project
    Date
    3. 3.1999 17:22:57
  4. Nicholson, D.; Steele, M.: CATRIONA : a distributed, locally-oriented, Z39.50 OPAC-based approach to cataloguing the Internet (1996) 0.04
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    Abstract
    The aims of CATRIONA were: (1) to investigate the requirements for developing procedures and applications for cataloguing and retrieval of networked resources, and (2) to explore the feasibility of a collaborative project to develop such applications and procedures and integrate them with existing library systems. The project established that a distributed catalogue of networked resources integrated with standard Z39.50 library system OPAC interfaces with information on hard-copy resources is already a practical proposition at a basic level. At least one Z39.50 OPAC client can search remote Z39.50 OPACs, retrieve USMARC records with URLs in 856$u, load a viewer like Netscape, and use it to retrieve and display the remotely held electronic resource on the local workstation. A follow-up project on related issues is being finalised.
    Source
    Cataloging and classification quarterly. 22(1996) nos.3/4, S.127-141
  5. Cousins, S.; Sanders, A.: Incorporating a virtual union catalogue into the wider information environment through the application of middleware: Interoperability issues in cross-database access (2006) 0.04
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    Abstract
    Purpose - To explore the use of middleware to provide access to a virtual catalogue via Z39.50, allowing its integration with other services. To consider issues arising from the cross-database search process and the problem of interoperability between systems. Design/methodology/approach - Middleware was used to establish a Z39.50 server for an existing virtual union catalogue, InforM25. The Copac physical union catalogue was used to carry out cross-database search tests, investigating the value of query transformation by the middleware and illustrating many of the issues associated with interoperability in cross-database searching. Findings - The test results demonstrate the viability and benefits of using middleware to allow the integration of virtual catalogues with other services. The results also illustrate the range of issues affecting the performance of the virtual catalogue, with supporting evidence from the use of the Copac physical union catalogue for cross-database searching via Z39.50. In particular the discussion highlights the issue of semantic interoperability, as well as emphasising the value of centralised virtual catalogue support. Research limitations/implications - The research was limited to work on a specific virtual union catalogue, that is InforM25, but the results highlight issues with general relevance in the development of any virtual catalogue. The need for more work on response times in the virtual union catalogue is apparent, along with the related issue of result set post processing. Originality/value - This paper provides a practical demonstration of the issues important to those involved in making their local catalogue accessible to services, and individuals, outside their own institution, as well as those working on virtual union catalogue development.
  6. Hogg, M.; Field, J.: Using Z39.50 to build a virtual union catalogue Music Libraries Online : a subject clump (2001) 0.04
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    Source
    Catalogue and index. 2001, no.139, S.1-4
  7. Lunau, C.D.; Turner, F.: vCuc pilot project : status report and preliminary identification (1997) 0.03
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    Abstract
    Describes the virtual Canadian union catalogue (vCuc) pilot project which aims to determine the long term feasibility of using Z39.50 for searching distributed individual library catalogues and union catalogues which together would emulate a centralized union catalogue. This 'virtual' catalogue will not replace the existing union catalogue at the National Library of Canada, but rather complement it. Describes progress to data with the project
  8. Roszkowski, M.; Lukas, C.: ¬A distributed architecture for resource discovery using metadata (1998) 0.02
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    Abstract
    As well developed as both the Scout Reports and Signpost are, they cannot capture the wealth of high-quality content that is available on the Internet. An obvious next step toward increasing the usefulness of our own collection and its value to our customer base is to partner with other high-quality content providers who have developed similar collections and to develop a single, virtual collection. Project Isaac (working title) is the Internet Scout Project's latest resource discovery effort. Project Isaac involves the development of a research testbed that allows experimentation with protocols and algorithms for creating, maintaining, indexing and searching distributed collections of metadata. Project Isaac's infrastructure uses standard Internet protocols, such as the Lightweight Directory Access Protocol (LDAP) and the Common Indexing Protocol (CIP) to distribute queries, return results, and exchange index or centroid information. The overall goal is to support a single-search interface to geographically distributed and independently maintained metadata collections.
  9. Zia, L.L.: new projects and a progress report : ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) program (2001) 0.02
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    Abstract
    The National Science Foundation's (NSF) National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) program comprises a set of projects engaged in a collective effort to build a national digital library of high quality science, technology, engineering, and mathematics (STEM) educational materials for students and teachers at all levels, in both formal and informal settings. By providing broad access to a rich, reliable, and authoritative collection of interactive learning and teaching resources and associated services in a digital environment, the NSDL will encourage and sustain continual improvements in the quality of STEM education for all students, and serve as a resource for lifelong learning. Though the program is relatively new, its vision and operational framework have been developed over a number of years through various workshops and planning meetings. The NSDL program held its first formal funding cycle during fiscal year 2000 (FY00), accepting proposals in four tracks: Core Integration System, Collections, Services, and Targeted Research. Twenty-nine awards were made across these tracks in September 2000. Brief descriptions of each FY00 project appeared in an October 2000 D-Lib Magazine article; full abstracts are available from the Awards Section at <http://www.ehr.nsf.gov/ehr/due/programs/nsdl/>. In FY01 the program received one hundred-nine proposals across its four tracks with the number of proposals in the collections, services, and targeted research tracks increasing to one hundred-one from the eighty received in FY00. In September 2001 grants were awarded to support 35 new projects: 1 project in the core integration track, 18 projects in the collections track, 13 in the services track, and 3 in targeted research. Two NSF directorates, the Directorate for Geosciences (GEO) and the Directorate for Mathematical and Physical Sciences (MPS) are both providing significant co-funding on several projects, illustrating the NSDL program's facilitation of the integration of research and education, an important strategic objective of the NSF. Thus far across both fiscal years of the program fifteen projects have enjoyed this joint support. Following is a list of the FY01 awards indicating the official NSF award number (each beginning with DUE), 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 Awards Section at the NSDL program site at <http://www.ehr.nsf.gov/ehr/due/programs/nsdl/>. (Grants with shared titles are formal collaborations and are grouped together.) The projects are displayed by track and are listed by award number. In addition, six of these projects have explicit relevance and application to K-12 education. Six others clearly have potential for application to the K-12 arena. The NSDL program will have another funding cycle in fiscal year 2002 with the next program solicitation expected to be available in January 2002, and an anticipated deadline for proposals in mid-April 2002.
  10. Zia, L.L.: ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) Program : new projects from fiscal year 2004 (2005) 0.02
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    Abstract
    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).
  11. Milanesi, C.: Möglichkeiten der Kooperation im Rahmen von Subject Gateways : das Euler-Projekt im Vergleich mit weiteren europäischen Projekten (2001) 0.01
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    Date
    22. 6.2002 19:41:59
  12. Lynch, C.A.: Building the infrastructure of resource sharing : union catalogs, distributed search, and cross database linkage (1997) 0.01
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    Abstract
    Effective resourcesharing presupposes an infrastructure which permits users to locate materials of interest in both print and electronic formats. 2 approaches for providing this are union catalogues and Z39.50 based distributed search systems and computer to computer information retrieval protocols. The advantages and limitations of each approach are considered, paying particular attention to a relaistic assessment of Z39.50 implementations. Argues that the union catalogue is far from obsolete and the 2 approaches should be considered complementary rather than competitive. Technologies to create links between the bibliographic apparatus of catalogues and abstracting and indexing databases and primary content in electronic form, such as the new Serial Item and Contribution Identifier (SICI) standard are also discussed as key elements in the infrastructure to support resource sharing
  13. Pfeffer, M.: Using clustering across union catalogues to enrich entries with indexing information (2014) 0.01
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    Abstract
    The federal system in Germany has created a segmented library landscape. Instead of a central entity responsible for cataloguing and indexing, regional library unions share the workload cooperatively among their members. One result of this approach is limited sharing of cataloguing and indexing information across union catalogues as well as heterogeneous indexing of items with almost equivalent content: different editions of the same work. In this paper, a method for clustering entries in library catalogues is proposed that can be used to reduce this heterogeneity as well as share indexing information across catalogue boundaries. In two experiments, the method is applied to several union catalogues and the results show that a surprisingly large number of previously not indexed entries can be enriched with indexing information. The quality of the indexing has been positively evaluated by human professionals and the results have already been imported into the production catalogues of two library unions.
  14. Dupuis, P.; Lapointe, J.: Developpement d'un outil documentaire à Hydro-Quebec : le Thesaurus HQ (1997) 0.01
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    Source
    Argus. 26(1997) no.3, S.16-22
  15. Dempsey, L.; Russell, R.; Kirriemur, J.W.: Towards distributed library systems : Z39.50 in a European context (1996) 0.01
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    Source
    Program. 30(1996) no.1, S.1-22
  16. Ashton, J.: ONE: the final OPAC frontier (1998) 0.01
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    Source
    Select newsletter. 1998, no.22, Spring, S.5-6
  17. Kaizik, A.; Gödert, W.; Milanesi, C.: Erfahrungen und Ergebnisse aus der Evaluierung des EU-Projektes EULER im Rahmen des an der FH Köln angesiedelten Projektes EJECT (Evaluation von Subject Gateways des World Wide Web (2001) 0.01
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    Date
    22. 6.2002 19:42:22
  18. Heery, R.: Information gateways : collaboration and content (2000) 0.01
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  19. Neuroth, H.; Lepschy, P.: ¬Das EU-Projekt Renardus (2001) 0.01
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  20. Avrahami, T.T.; Yau, L.; Si, L.; Callan, J.P.: ¬The FedLemur project : Federated search in the real world (2006) 0.01
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    Date
    22. 7.2006 16:02:07