Search (25 results, page 1 of 2)

  • × theme_ss:"Verteilte bibliographische Datenbanken"
  • × language_ss:"e"
  1. Avrahami, T.T.; Yau, L.; Si, L.; Callan, J.P.: ¬The FedLemur project : Federated search in the real world (2006) 0.05 
    0.04945602 = product of:
  0.09891204 = sum of:
    0.09891204 = sum of:
      0.056415144 = weight(_text_:research in 5271) [ClassicSimilarity], result of:
        0.056415144 = score(doc=5271,freq=8.0), product of:
          0.1491455 = queryWeight, product of:
            2.8529835 = idf(docFreq=6931, maxDocs=44218)
            0.05227703 = queryNorm
          0.37825575 = fieldWeight in 5271, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            2.8529835 = idf(docFreq=6931, maxDocs=44218)
            0.046875 = fieldNorm(doc=5271)
      0.042496894 = weight(_text_:22 in 5271) [ClassicSimilarity], result of:
        0.042496894 = score(doc=5271,freq=2.0), product of:
          0.18306525 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05227703 = queryNorm
          0.23214069 = fieldWeight in 5271, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046875 = fieldNorm(doc=5271)
  0.5 = coord(1/2)
    Abstract
    Federated search and distributed information retrieval systems provide a single user interface for searching multiple full-text search engines. They have been an active area of research for more than a decade, but in spite of their success as a research topic, they are still rare in operational environments. This article discusses a prototype federated search system developed for the U.S. government's FedStats Web portal, and the issues addressed in adapting research solutions to this operational environment. A series of experiments explore how well prior research results, parameter settings, and heuristics apply in the FedStats environment. The article concludes with a set of lessons learned from this technology transfer effort, including observations about search engine quality in the real world.
    Date
    22. 7.2006 16:02:07
  2. Lopatenko, A.; Asserson, A.; Jeffery, K.G.: CERIF - Information retrieval of research information in a distributed heterogeneous environment (2002) 0.02 
    0.015768511 = product of:
  0.031537022 = sum of:
    0.031537022 = product of:
      0.063074045 = sum of:
        0.063074045 = weight(_text_:research in 3597) [ClassicSimilarity], result of:
          0.063074045 = score(doc=3597,freq=10.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.42290276 = fieldWeight in 3597, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.046875 = fieldNorm(doc=3597)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    User demands to have access to complete and actual information about research may require integration of data from different CRISs. CRISs are rarely homogenous systems and problems of CRISs integration must be addressed from technological point of view. Implementation of CRIS providing access to heterogeneous data distributed among a number of CRISs is described. A few technologies - distributed databases, web services, semantic web are used for distributed CRIS to address different user requirements. Distributed databases serve to implement very efficient integration of homogenous systems, web services - to provide open access to research information, semantic web - to solve problems of integration semantically and structurally heterogeneous data sources and provide intelligent data retrieval interfaces. The problems of data completeness in distributed systems are addressed and CRIS-adequate solution for data completeness is suggested.
    Source
    Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase
  3. 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 (2003) 0.02 
    0.015225641 = product of:
  0.030451283 = sum of:
    0.030451283 = sum of:
      0.01628565 = weight(_text_:research in 3964) [ClassicSimilarity], result of:
        0.01628565 = score(doc=3964,freq=6.0), product of:
          0.1491455 = queryWeight, product of:
            2.8529835 = idf(docFreq=6931, maxDocs=44218)
            0.05227703 = queryNorm
          0.109193034 = fieldWeight in 3964, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            2.8529835 = idf(docFreq=6931, maxDocs=44218)
            0.015625 = fieldNorm(doc=3964)
      0.0141656315 = weight(_text_:22 in 3964) [ClassicSimilarity], result of:
        0.0141656315 = score(doc=3964,freq=2.0), product of:
          0.18306525 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05227703 = queryNorm
          0.07738023 = fieldWeight in 3964, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.015625 = fieldNorm(doc=3964)
  0.5 = coord(1/2)
    Content
    Enthält die Beiträge: Devadason, F.J., N. Intaraksa u. P. Patamawongjariya u.a.: Faceted indexing application for organizing and accessing internet resources; Nicholson, D., S. Wake: HILT: subject retrieval in a distributed environment; Olson, T.: Integrating LCSH and MeSH in information systems; Kuhr, P.S.: Putting the world back together: mapping multiple vocabularies into a single thesaurus; Freyre, E., M. Naudi: MACS : subject access across languages and networks; McIlwaine, I.C.: The UDC and the World Wide Web; Garrison, W.A.: The Colorado Digitization Project: subject access issues; Vizine-Goetz, D., R. Thompson: Towards DDC-classified displays of Netfirst search results: subject access issues; Godby, C.J., J. Stuler: The Library of Congress Classification as a knowledge base for automatic subject categorization: subject access issues; O'Neill, E.T., E. Childress u. R. Dean u.a.: FAST: faceted application of subject terminology; Bean, C.A., R. Green: Improving subject retrieval with frame representation; Zeng, M.L., Y. Chen: Features of an integrated thesaurus management and search system for the networked environment; Hudon, M.: Subject access to Web resources in education; Qin, J., J. Chen: A multi-layered, multi-dimensional representation of digital educational resources; Riesthuis, G.J.A.: Information languages and multilingual subject access; Geisselmann, F.: Access methods in a database of e-journals; Beghtol, C.: The Iter Bibliography: International standard subject access to medieval and renaissance materials (400-1700); Slavic, A.: General library classification in learning material metadata: the application in IMS/LOM and CDMES metadata schemas; Cordeiro, M.I.: From library authority control to network authoritative metadata sources; Koch, T., H. Neuroth u. M. Day: Renardus: Cross-browsing European subject gateways via a common classification system (DDC); Olson, H.A., D.B. Ward: Mundane standards, everyday technologies, equitable access; Burke, M.A.: Personal Construct Theory as a research tool in Library and Information Science: case study: development of a user-driven classification of photographs
    Footnote
    Rez. in: KO 31(2004) no.2, S.117-118 (D. Campbell): "This excellent volume offers 22 papers delivered at an IFLA Satellite meeting in Dublin Ohio in 2001. The conference gathered together information and computer scientists to discuss an important and difficult question: in what specific ways can the accumulated skills, theories and traditions of librarianship be mobilized to face the challenges of providing subject access to information in present and future networked information environments? The papers which grapple with this question are organized in a surprisingly deft and coherent way. Many conferences and proceedings have unhappy sessions that contain a hodge-podge of papers that didn't quite fit any other categories. As befits a good classificationist, editor I.C. McIlwaine has kept this problem to a minimum. The papers are organized into eight sessions, which split into two broad categories. The first five sessions deal with subject domains, and the last three deal with subject access tools. The five sessions and thirteen papers that discuss access in different domains appear in order of in creasing intension. The first papers deal with access in multilingual environments, followed by papers an access across multiple vocabularies and across sectors, ending up with studies of domain-specific retrieval (primarily education). Some of the papers offer predictably strong work by scholars engaged in ongoing, long-term research. Gerard Riesthuis offers a clear analysis of the complexities of negotiating non-identical thesauri, particularly in cases where hierarchical structure varies across different languages. Hope Olson and Dennis Ward use Olson's familiar and welcome method of using provocative and unconventional theory to generate meliorative approaches to blas in general subject access schemes. Many papers, an the other hand, deal with specific ongoing projects: Renardus, The High Level Thesaurus Project, The Colorado Digitization Project and The Iter Bibliography for medieval and Renaissance material. Most of these papers display a similar structure: an explanation of the theory and purpose of the project, an account of problems encountered in the implementation, and a discussion of the results, both promising and disappointing, thus far. Of these papers, the account of the Multilanguage Access to Subjects Project in Europe (MACS) deserves special mention. In describing how the project is founded an the principle of the equality of languages, with each subject heading language maintained in its own database, and with no single language used as a pivot for the others, Elisabeth Freyre and Max Naudi offer a particularly vivid example of the way the ethics of librarianship translate into pragmatic contexts and concrete procedures. The three sessions and nine papers devoted to subject access tools split into two kinds: papers that discuss the use of theory and research to generate new tools for a networked environment, and those that discuss the transformation of traditional subject access tools in this environment. In the new tool development area, Mary Burke provides a promising example of the bidirectional approach that is so often necessary: in her case study of user-driven classification of photographs, she user personal construct theory to clarify the practice of classification, while at the same time using practice to test the theory. Carol Bean and Rebecca Green offer an intriguing combination of librarianship and computer science, importing frame representation technique from artificial intelligence to standardize syntagmatic relationships to enhance recall and precision.
  4. Dempsey, L.; Russell, R.; Kirriemur, J.W.: Towards distributed library systems : Z39.50 in a European context (1996) 0.01 
    0.0141656315 = product of:
  0.028331263 = sum of:
    0.028331263 = product of:
      0.056662526 = sum of:
        0.056662526 = weight(_text_:22 in 127) [ClassicSimilarity], result of:
          0.056662526 = score(doc=127,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.30952093 = fieldWeight in 127, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=127)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Program. 30(1996) no.1, S.1-22
  5. Ashton, J.: ONE: the final OPAC frontier (1998) 0.01 
    0.0141656315 = product of:
  0.028331263 = sum of:
    0.028331263 = product of:
      0.056662526 = sum of:
        0.056662526 = weight(_text_:22 in 2588) [ClassicSimilarity], result of:
          0.056662526 = score(doc=2588,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.30952093 = fieldWeight in 2588, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=2588)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Select newsletter. 1998, no.22, Spring, S.5-6
  6. Lunau, C.D.: Z39.50: a critical component of the Canadian resource sharing infrastructure : implementation activities and results achieved (1997) 0.01 
    0.0141656315 = product of:
  0.028331263 = sum of:
    0.028331263 = product of:
      0.056662526 = sum of:
        0.056662526 = weight(_text_:22 in 3193) [ClassicSimilarity], result of:
          0.056662526 = score(doc=3193,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.30952093 = fieldWeight in 3193, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=3193)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    3. 3.1999 17:22:57
  7. Burrows, T.: ¬The virtual catalogue : bibliographic access for the virtual library (1993) 0.01 
    0.0141656315 = product of:
  0.028331263 = sum of:
    0.028331263 = product of:
      0.056662526 = sum of:
        0.056662526 = weight(_text_:22 in 5286) [ClassicSimilarity], result of:
          0.056662526 = score(doc=5286,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.30952093 = fieldWeight in 5286, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=5286)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    8.10.2000 14:47:22
  8. Heery, R.: Information gateways : collaboration and content (2000) 0.01 
    0.012394927 = product of:
  0.024789855 = sum of:
    0.024789855 = product of:
      0.04957971 = sum of:
        0.04957971 = weight(_text_:22 in 4866) [ClassicSimilarity], result of:
          0.04957971 = score(doc=4866,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.2708308 = fieldWeight in 4866, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4866)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 6.2002 19:38:54
  9. Friedrich, M.; Schimkat, R.-D.; Küchlin, W.: Information retrieval in distributed environments based on context-aware, proactive documents (2002) 0.01 
    0.01163503 = product of:
  0.02327006 = sum of:
    0.02327006 = product of:
      0.04654012 = sum of:
        0.04654012 = weight(_text_:research in 3608) [ClassicSimilarity], result of:
          0.04654012 = score(doc=3608,freq=4.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.31204507 = fieldWeight in 3608, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3608)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase
  10. Nicholson, D.; Steele, M.: CATRIONA : a distributed, locally-oriented, Z39.50 OPAC-based approach to cataloguing the Internet (1996) 0.01 
    0.010624223 = product of:
  0.021248447 = sum of:
    0.021248447 = product of:
      0.042496894 = sum of:
        0.042496894 = weight(_text_:22 in 603) [ClassicSimilarity], result of:
          0.042496894 = score(doc=603,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.23214069 = fieldWeight in 603, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=603)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Cataloging and classification quarterly. 22(1996) nos.3/4, S.127-141
  11. Barker, P.: ¬A study of the use of the X.500 directory for bibliographic querying (1995) 0.01 
    0.009972882 = product of:
  0.019945765 = sum of:
    0.019945765 = product of:
      0.03989153 = sum of:
        0.03989153 = weight(_text_:research in 1505) [ClassicSimilarity], result of:
          0.03989153 = score(doc=1505,freq=4.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.2674672 = fieldWeight in 1505, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.046875 = fieldNorm(doc=1505)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Electronic library and visual information research: Proceedings of the First ELVIRA Conference (ELVIRA 1), Electronic Library and Visual Information Research, De Montfort University, Milton Keynes, May 1994. Ed. by M. Collier u, K. Arnold
  12. Ostergren, M.; Wright, G.: Creating a bibliographic database for a widely distributed collection (1998) 0.01 
    0.009402524 = product of:
  0.018805047 = sum of:
    0.018805047 = product of:
      0.037610095 = sum of:
        0.037610095 = weight(_text_:research in 1503) [ClassicSimilarity], result of:
          0.037610095 = score(doc=1503,freq=2.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.2521705 = fieldWeight in 1503, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.0625 = fieldNorm(doc=1503)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Managing information from over 375 separate parks is a challenge for the US National Parks Service (NPS). Describes the National Resource Bibliography Project initiated by the NPS, which so far includes more than 100.000 records from over 160 different US parks. The goal is to complete all of the units designated for the project by 1998. The result will be a virtual library comprising document collections from over 300 parks, forming a unique and valuable research tool, available to anyone interested
  13. Johnson, E.H.: Objects for distributed heterogeneous information retrieval (2000) 0.01 
    0.00885352 = product of:
  0.01770704 = sum of:
    0.01770704 = product of:
      0.03541408 = sum of:
        0.03541408 = weight(_text_:22 in 6959) [ClassicSimilarity], result of:
          0.03541408 = score(doc=6959,freq=2.0), product of:
            0.18306525 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05227703 = queryNorm
            0.19345059 = fieldWeight in 6959, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6959)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 9.1997 19:16:05
  14. 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) 0.01 
    0.008310735 = product of:
  0.01662147 = sum of:
    0.01662147 = product of:
      0.03324294 = sum of:
        0.03324294 = weight(_text_:research in 5591) [ClassicSimilarity], result of:
          0.03324294 = score(doc=5591,freq=4.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.22288933 = fieldWeight in 5591, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5591)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    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.
  15. Callan, J.: Distributed information retrieval (2000) 0.01 
    0.008227208 = product of:
  0.016454415 = sum of:
    0.016454415 = product of:
      0.03290883 = sum of:
        0.03290883 = weight(_text_:research in 31) [ClassicSimilarity], result of:
          0.03290883 = score(doc=31,freq=2.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.22064918 = fieldWeight in 31, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.0546875 = fieldNorm(doc=31)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Advances in information retrieval: Recent research from the Center for Intelligent Information Retrieval. Ed.: W.B. Croft
  16. Zia, L.L.: new projects and a progress report : ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) program (2001) 0.01 
    0.008227208 = product of:
  0.016454415 = sum of:
    0.016454415 = product of:
      0.03290883 = sum of:
        0.03290883 = weight(_text_:research in 1227) [ClassicSimilarity], result of:
          0.03290883 = score(doc=1227,freq=8.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.22064918 = fieldWeight in 1227, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1227)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    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.
  17. Roszkowski, M.; Lukas, C.: ¬A distributed architecture for resource discovery using metadata (1998) 0.01 
    0.008142825 = product of:
  0.01628565 = sum of:
    0.01628565 = product of:
      0.0325713 = sum of:
        0.0325713 = weight(_text_:research in 1256) [ClassicSimilarity], result of:
          0.0325713 = score(doc=1256,freq=6.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.21838607 = fieldWeight in 1256, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.03125 = fieldNorm(doc=1256)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This article describes an approach for linking geographically distributed collections of metadata so that they are searchable as a single collection. We describe the infrastructure, which 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 information. We discuss the advantages of using linked collections of authoritative metadata as an alternative to using a keyword indexing search-engine for resource discovery. We examine other architectures that use metadata for resource discovery, such as Dienst/NCSTRL, the AHDS HTTP/Z39.50 Gateway, and the ROADS initiative. Finally, we discuss research issues and future directions of the project. The Internet Scout Project, which is funded by the National Science Foundation and is located in the Computer Sciences Department at the University of Wisconsin-Madison, is charged with assisting the higher education community in resource discovery on the Internet. To that end, the Scout Report and subsequent subject-specific Scout Reports were developed to guide the U.S. higher education community to research-quality resources. The Scout Report Signpost utilizes the content from the Scout Reports as the basis of a metadata collection. Signpost consists of more than 2000 cataloged Internet sites using established standards such as Library of Congress subject headings and abbreviated call letters, and emerging standards such as the Dublin Core (DC). This searchable and browseable collection is free and freely accessible, as are all of the Internet Scout Project's services.
    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.
  18. Croft, W.B.: Combining approaches to information retrieval (2000) 0.01 
    0.007051893 = product of:
  0.014103786 = sum of:
    0.014103786 = product of:
      0.028207572 = sum of:
        0.028207572 = weight(_text_:research in 6862) [ClassicSimilarity], result of:
          0.028207572 = score(doc=6862,freq=2.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.18912788 = fieldWeight in 6862, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.046875 = fieldNorm(doc=6862)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Advances in information retrieval: Recent research from the Center for Intelligent Information Retrieval. Ed.: W.B. Croft
  19. Xu, J.; Croft, W.B.: Topic-based language models for distributed retrieval (2000) 0.01 
    0.007051893 = product of:
  0.014103786 = sum of:
    0.014103786 = product of:
      0.028207572 = sum of:
        0.028207572 = weight(_text_:research in 38) [ClassicSimilarity], result of:
          0.028207572 = score(doc=38,freq=2.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.18912788 = fieldWeight in 38, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.046875 = fieldNorm(doc=38)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Advances in information retrieval: Recent research from the Center for Intelligent Information Retrieval. Ed.: W.B. Croft
  20. Zia, L.L.: ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) Program : new projects from fiscal year 2004 (2005) 0.01 
    0.007051893 = product of:
  0.014103786 = sum of:
    0.014103786 = product of:
      0.028207572 = sum of:
        0.028207572 = weight(_text_:research in 1221) [ClassicSimilarity], result of:
          0.028207572 = score(doc=1221,freq=8.0), product of:
            0.1491455 = queryWeight, product of:
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.05227703 = queryNorm
            0.18912788 = fieldWeight in 1221, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              2.8529835 = idf(docFreq=6931, maxDocs=44218)
              0.0234375 = fieldNorm(doc=1221)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    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).

Authors

Years

Types

  • a 24
  • el 5
  • m 1
  • s 1
  • More… Less…

Themes