Search (46 results, page 2 of 3)

  • × language_ss:"e"
  • × theme_ss:"Verteilte bibliographische Datenbanken"
  • × type_ss:"a"
  1. Vikor, D.L.; Gaumond, G.; Heath, F.M.: Building electronic cooperation in the 1990s : the Maryland, Georgia, and Texas experiences (1997) 0.00
    0.0025239778 = product of:
      0.010095911 = sum of:
        0.010095911 = weight(_text_:information in 1680) [ClassicSimilarity], result of:
          0.010095911 = score(doc=1680,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.16457605 = fieldWeight in 1680, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=1680)
      0.25 = coord(1/4)
    
    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
  2. Woldering, B.: 2nd European Library Seminar / 3rd Gabriel Workshop (2003) 0.00
    0.0025239778 = product of:
      0.010095911 = sum of:
        0.010095911 = weight(_text_:information in 2132) [ClassicSimilarity], result of:
          0.010095911 = score(doc=2132,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.16457605 = fieldWeight in 2132, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=2132)
      0.25 = coord(1/4)
    
    Abstract
    From 4 to 6 June 2003 the 2nd European Library Seminar / 3rd Gabriel Workshop was held at the Biblioteca Nacional in Lisbon, Portugal. 62 librarians and webmasters from 20 countries participated in the workshop, mainly Gabriel contacts but also quite a number of librarians from Portugal. Since its foundation in 1995 Gabriel, the world wide web service of the European national libraries, has established itself as the official network service of the Conference of European National Librarians (CENL) and has undergone a continuous development. The Gabriel website has been redesigned and restructured, and it was relaunched in summer 2002. At present, 41 libraries from 39 European countries are represented in Gabriel. Gabriel offers access to varied information sources and numerous online-catalogues and Services of the European national libraries. Gabriel is the only trans-European library service.
    Theme
    Information Gateway
  3. Avrahami, T.T.; Yau, L.; Si, L.; Callan, J.P.: ¬The FedLemur project : Federated search in the real world (2006) 0.00
    0.0025239778 = product of:
      0.010095911 = sum of:
        0.010095911 = weight(_text_:information in 5271) [ClassicSimilarity], result of:
          0.010095911 = score(doc=5271,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.16457605 = fieldWeight in 5271, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=5271)
      0.25 = coord(1/4)
    
    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.
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.3, S.347-358
  4. Dempsey, L.; Russell, R.; Murray, R.: ¬The emergence of distributed library services : a European perspective (1998) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 233) [ClassicSimilarity], result of:
          0.009518516 = score(doc=233,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 233, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=233)
      0.25 = coord(1/4)
    
    Source
    Journal of the American Society for Information Science. 49(1998) no.10, S.942-951
  5. Duda, L.E.; Rioux, M.A.: ¬One library, one bib record : two opacs, two systems (1998) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 2229) [ClassicSimilarity], result of:
          0.009518516 = score(doc=2229,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 2229, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=2229)
      0.25 = coord(1/4)
    
    Source
    Information outlook. 2(1998) no.3, S.31-34,36
  6. Working as ONE in Europe (1996) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 2593) [ClassicSimilarity], result of:
          0.009518516 = score(doc=2593,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 2593, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=2593)
      0.25 = coord(1/4)
    
    Source
    Information management report. 1996, June, S.8-9
  7. Lunau, C.D.: Z39.50: a critical component of the Canadian resource sharing infrastructure : implementation activities and results achieved (1997) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 3193) [ClassicSimilarity], result of:
          0.009518516 = score(doc=3193,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 3193, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=3193)
      0.25 = coord(1/4)
    
    Source
    New review of information networking. 1997, no.3, S.77-92
  8. Burrows, T.: ¬The virtual catalogue : bibliographic access for the virtual library (1993) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 5286) [ClassicSimilarity], result of:
          0.009518516 = score(doc=5286,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 5286, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=5286)
      0.25 = coord(1/4)
    
    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
  9. Woldering, B.: 2nd European Library Seminar / 3rd Gabriel Workshop, 4-6 June 2003 at the Biblioteca Nacional in Lisbon (2003) 0.00
    0.002379629 = product of:
      0.009518516 = sum of:
        0.009518516 = weight(_text_:information in 2025) [ClassicSimilarity], result of:
          0.009518516 = score(doc=2025,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1551638 = fieldWeight in 2025, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0625 = fieldNorm(doc=2025)
      0.25 = coord(1/4)
    
    Theme
    Information Gateway
  10. Teets, M.; Murray, P.: Metasearch authentication and access management (2006) 0.00
    0.0021033147 = product of:
      0.008413259 = sum of:
        0.008413259 = weight(_text_:information in 1154) [ClassicSimilarity], result of:
          0.008413259 = score(doc=1154,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.13714671 = fieldWeight in 1154, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1154)
      0.25 = coord(1/4)
    
    Abstract
    Metasearch - also called parallel search, federated search, broadcast search, and cross-database search - has become commonplace in the information community's vocabulary. All speak to a common theme of searching and retrieving from multiple databases, sources, platforms, protocols, and vendors at the point of the user's request. Metasearch services rely on a variety of approaches including open standards (such as NISO's Z39.50 and SRU/SRW), proprietary programming interfaces, and "screen scraping." However, the absence of widely supported standards, best practices, and tools makes the metasearch environment less efficient for the metasearch provider, the content provider, and ultimately the end-user. To spur the development of widely supported standards and best practices, the National Information Standards Organization (NISO) sponsored a Metasearch Initiative in 2003 to enable: * metasearch service providers to offer more effective and responsive services, * content providers to deliver enhanced content and protect their intellectual property, and * libraries to deliver a simple search (a.k.a. "Google") that covers the breadth of their vetted commercial and free resources. The Access Management Task Group was one of three groups chartered by NISO as part of the Metasearch Initiative. The focus of the group was on gathering requirements for Metasearch authentication and access needs, inventorying existing processes, developing a series of formal use cases describing the access needs, recommending best practices given today's processes, and recommending and pursing changes to current solutions to better support metasearch applications. In September 2005, the group issued their final report and recommendation. This article summarizes the group's work and final recommendation.
  11. Sarinder, K.K.S.; Lim, L.H.S.; Merican, A.F.; Dimyati, K.: Biodiversity information retrieval across networked data sets (2010) 0.00
    0.0021033147 = product of:
      0.008413259 = sum of:
        0.008413259 = weight(_text_:information in 3951) [ClassicSimilarity], result of:
          0.008413259 = score(doc=3951,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.13714671 = fieldWeight in 3951, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3951)
      0.25 = coord(1/4)
    
    Abstract
    Purpose - Biodiversity resources are inevitably digital and stored in a wide variety of formats by researchers or stakeholders. In Malaysia, although digitizing biodiversity data has long been stressed, the interoperability of the biodiversity data is still an issue that requires attention. This is because, when data are shared, the question of copyright occurs, creating a setback among researchers wanting to promote or share data through online presentations. To solve this, the aim is to present an approach to integrate data through wrapping of datasets stored in relational databases located on networked platforms. Design/methodology/approach - The approach uses tools such as XML, PHP, ASP and HTML to integrate distributed databases in heterogeneous formats. Five current database integration systems were reviewed and all of them have common attributes such as query-oriented, using a mediator-based approach and integrating a structured data model. These common attributes were also adopted in the proposed solution. Distributed Generic Information Retrieval (DiGIR) was used as a model in designing the proposed solution. Findings - A new database integration system was developed, which is user-friendly and simple with common attributes found in current integration systems.
  12. Stark, T.: ¬The Net and Z39.50 : toward a virtual union catalog (1997) 0.00
    0.0020821756 = product of:
      0.008328702 = sum of:
        0.008328702 = weight(_text_:information in 3194) [ClassicSimilarity], result of:
          0.008328702 = score(doc=3194,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.13576832 = fieldWeight in 3194, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3194)
      0.25 = coord(1/4)
    
    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
  13. Laegreid, J.A.: ¬The Nordic SR-net project : implementation of the SR/Z39.50 standards in the Nordic countries (1994) 0.00
    0.0020821756 = product of:
      0.008328702 = sum of:
        0.008328702 = weight(_text_:information in 3196) [ClassicSimilarity], result of:
          0.008328702 = score(doc=3196,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.13576832 = fieldWeight in 3196, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3196)
      0.25 = coord(1/4)
    
    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
  14. Banwell, L.: Developing and evaluation framework for a supranational digital library (2003) 0.00
    0.0020608194 = product of:
      0.008243278 = sum of:
        0.008243278 = weight(_text_:information in 2769) [ClassicSimilarity], result of:
          0.008243278 = score(doc=2769,freq=6.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1343758 = fieldWeight in 2769, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=2769)
      0.25 = coord(1/4)
    
    Abstract
    The paper will explore the issues surrounding the development of an evaluation framework for a supranational digital library system, as seen through the TEL (The European Library) project. It will describe work an the project to date, and seek to establish what are the key drivers, priorities and barriers encountered, in developing such a framework. TEL is being funded by the EU as an Accompanying Measure in the IST program. Its main focus of is an consensus building, and also includes preparatory technical work to develop testbeds, which will gauge to what extent interoperability is achievable. In order for TEL to take its place as a major Information Society initiative of the EU, it needs to be closely attuned to the needs, expectations and realities of its user communities, which comprise the citizens of the project's national partners. To this end the evaluation framework described in this paper, is being developed by establishing the users' viewpoints and priorities in relation to the key project themes. A summary of the issues to be used in the baseline, and to be expanded upon in the paper, follows: - Establishing the differing contexts of the national library partners, and the differing national priorities which will impact an TEL - Exploring the differing expectations relating to building and using the hybrid library - Exploring the differing expectations relating to TEL. TEL needs to add value - what does this mean in each partner state, and for the individuals within them? 1. Introduction to TEL TEL (The European Library) is a thirty month project, funded by the European Commission as part of its Fifth Framework Programme for research. It aims to set up a co-operative framework for access to the major national, mainly digital, collections in European national libraries. TEL is funded as an Accompanying Measure, designed to support the work of the IST (Information Society Technologies) Programme an the development of access to cultural and scientific knowledge. TEL will stop short of becoming a live service during the lifetime of the project, and is focused an ensuring co-operative and concerted approaches to technical and business issues associated with large-scale content development. It will lay the policy and technical groundwork towards a pan European digital library based an distributed digital collections, and providing seamless access to the digital resources of major European national libraries. It began in February, 2001, and has eight national library partners: Finland, Germany, Italy, the Netherlands, Portugal, Slovenia, Switzerland and the United Kingdom. It is also seeking to encourage the participation of all European national libraries in due course.
    Theme
    Information Gateway
  15. Lynch, C.A.: Building the infrastructure of resource sharing : union catalogs, distributed search, and cross database linkage (1997) 0.00
    0.0017847219 = product of:
      0.0071388874 = sum of:
        0.0071388874 = weight(_text_:information in 1506) [ClassicSimilarity], result of:
          0.0071388874 = score(doc=1506,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.116372846 = fieldWeight in 1506, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=1506)
      0.25 = coord(1/4)
    
    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
  16. Nicholson, D.; Wake, S.: HILT: subject retrieval in a distributed environment (2003) 0.00
    0.0017847219 = product of:
      0.0071388874 = sum of:
        0.0071388874 = weight(_text_:information in 3810) [ClassicSimilarity], result of:
          0.0071388874 = score(doc=3810,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.116372846 = fieldWeight in 3810, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=3810)
      0.25 = coord(1/4)
    
    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
  17. Nicholson, D.; Steele, M.: CATRIONA : a distributed, locally-oriented, Z39.50 OPAC-based approach to cataloguing the Internet (1996) 0.00
    0.0017847219 = product of:
      0.0071388874 = sum of:
        0.0071388874 = weight(_text_:information in 603) [ClassicSimilarity], result of:
          0.0071388874 = score(doc=603,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.116372846 = fieldWeight in 603, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.046875 = fieldNorm(doc=603)
      0.25 = coord(1/4)
    
    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.
  18. Zia, L.L.: Growing a national learning environments and resources network for science, mathematics, engineering, and technology education : current issues and opportunities for the NSDL program (2001) 0.00
    0.0016826519 = product of:
      0.0067306077 = sum of:
        0.0067306077 = weight(_text_:information in 1217) [ClassicSimilarity], result of:
          0.0067306077 = score(doc=1217,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.10971737 = fieldWeight in 1217, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=1217)
      0.25 = coord(1/4)
    
    Abstract
    The National Science Foundation's (NSF) National Science, Mathematics, Engineering, and Technology Education Digital Library (NSDL) program seeks to create, develop, and sustain a national digital library supporting science, mathematics, engineering, and technology (SMET) education at all levels -- preK-12, undergraduate, graduate, and life-long learning. The resulting virtual institution is expected to catalyze and support continual improvements in the quality of science, mathematics, engineering, and technology (SMET) education in both formal and informal settings. The vision for this program has been explored through a series of workshops over the past several years and documented in accompanying reports and monographs. (See [1-7, 10, 12, and 13].) These efforts have led to a characterization of the digital library as a learning environments and resources network for science, mathematics, engineering, and technology education, that is: * designed to meet the needs of learners, in both individual and collaborative settings; * constructed to enable dynamic use of a broad array of materials for learning primarily in digital format; and * managed actively to promote reliable anytime, anywhere access to quality collections and services, available both within and without the network. Underlying the NSDL program are several working assumptions. First, while there is currently no lack of "great piles of content" on the Web, there is an urgent need for "piles of great content". The difficulties in discovering and verifying the authority of appropriate Web-based material are certainly well known, yet there are many examples of learning resources of great promise available (particularly those exploiting the power of multiple media), with more added every day. The breadth and interconnectedness of the Web are simultaneously a great strength and shortcoming. Second, the "unit" or granularity of educational content can and will shrink, affording the opportunity for users to become creators and vice versa, as learning objects are reused, repackaged, and repurposed. To be sure, this scenario cannot take place without serious attention to intellectual property and digital rights management concerns. But new models and technologies are being explored (see a number of recent articles in the January issue of D-Lib Magazine). Third, there is a need for an "organizational infrastructure" that facilitates connections between distributed users and distributed content, as alluded to in the third bullet above. Finally, while much of the ongoing use of the library is envisioned to be "free" in the sense of the public good, there is an opportunity and a need to consider multiple alternative models of sustainability, particularly in the area of services offered by the digital library. More details about the NSDL program including information about proposal deadlines and current awards may be found at <http://www.ehr.nsf.gov/ehr/due/programs/nsdl>.
    Theme
    Information Gateway
  19. Roszkowski, M.; Lukas, C.: ¬A distributed architecture for resource discovery using metadata (1998) 0.00
    0.0016826519 = product of:
      0.0067306077 = sum of:
        0.0067306077 = weight(_text_:information in 1256) [ClassicSimilarity], result of:
          0.0067306077 = score(doc=1256,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.10971737 = fieldWeight in 1256, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=1256)
      0.25 = coord(1/4)
    
    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.
  20. Collier, M.: ¬The business aims of eight national libraries in digital library co-operation : a study carried out for the business plan of The European Library (TEL) project (2005) 0.00
    0.0014872681 = product of:
      0.0059490725 = sum of:
        0.0059490725 = weight(_text_:information in 4951) [ClassicSimilarity], result of:
          0.0059490725 = score(doc=4951,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.09697737 = fieldWeight in 4951, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4951)
      0.25 = coord(1/4)
    
    Theme
    Information Gateway