-
Arch-Int, N.; Sophatsathit, P.: ¬A semantic information gathering approach for heterogeneous information sources on WWW (2003)
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- Source
- Journal of information science. 29(2003) no.5, S.357-374
-
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)
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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.
-
Crestani, F.; Wu, S.: Testing the cluster hypothesis in distributed information retrieval (2006)
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- Source
- Information processing and management. 42(2006) no.5, S.1137-1150
-
Avrahami, T.T.; Yau, L.; Si, L.; Callan, J.P.: ¬The FedLemur project : Federated search in the real world (2006)
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- Date
- 22. 7.2006 16:02:07
- Source
- Journal of the American Society for Information Science and Technology. 57(2006) no.3, S.347-358
-
Johnson, E.H.: Objects for distributed heterogeneous information retrieval (2000)
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- Date
- 22. 9.1997 19:16:05
- Imprint
- Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science
-
Kuberek, M.: KOBV: institutionalisiert (2001)
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- Date
- 29. 9.2001 11:33:57
-
Milanesi, C.: Möglichkeiten der Kooperation im Rahmen von Subject Gateways : das Euler-Projekt im Vergleich mit weiteren europäischen Projekten (2001)
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- Date
- 22. 6.2002 19:41:59
-
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)
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- 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.
-
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)
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- Date
- 22. 6.2002 19:42:22
-
Friedrich, M.; Schimkat, R.-D.; Küchlin, W.: Information retrieval in distributed environments based on context-aware, proactive documents (2002)
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- 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
-
Heery, R.: Information gateways : collaboration and content (2000)
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- Date
- 22. 6.2002 19:38:54
-
Lopatenko, A.; Asserson, A.; Jeffery, K.G.: CERIF - Information retrieval of research information in a distributed heterogeneous environment (2002)
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- 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
-
Neuroth, H.; Lepschy, P.: ¬Das EU-Projekt Renardus (2001)
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- Date
- 22. 6.2002 19:32:15
-
Meiert, M.: Elektronische Publikationen an Hochschulen : Modellierung des elektronischen Publikationsprozesses am Beispiel der Universität Hildesheim (2006)
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- Date
- 1. 9.2006 13:22:15
-
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)
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- 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>.
-
Teets, M.; Murray, P.: Metasearch authentication and access management (2006)
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- Date
- 26.12.2011 16:29:10
-
Hellweg, H.; Krause, J.; Mandl, T.; Marx, J.; Müller, M.N.O.; Mutschke, P.; Strötgen, R.: Treatment of semantic heterogeneity in information retrieval (2001)
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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
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Tappenbeck, I.; Wessel, C.: CARMEN : Content Analysis, Retrieval and Metadata: Effective Net-working. Ein Halbzeitbericht (2001)
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- Abstract
- Das Projekt CARMEN startete als Sonderfördermaßnahme im Rahmen von Global lnfo im Oktober 1999 mit einer geplanten Laufzeit von 29 Monaten. Der Schwerpunkt des Projekts liegt in der Weiterentwicklung von Konzepten und Verfahren der Dokumenterschließung, die den Zugriff auf heterogene, dezentral verteilte Informationsbestände und deren Verwaltung nach gemeinsamen Prinzipien ermöglichen sollen. Dabei geht CARMEN gezielt einen anderen Weg als die meisten bisherigen Ansätze in diesem Bereich, die versuchen, Homogenität und Konsistenz in einer dezentralen Informationslandschaft technikorientiert herzustellen, indem Verfahren entwickelt werden, durch die physikalisch auf verschiedene Dokumentenräume gleichzeitig zugegriffen werden kann. Eine rein technische Parallelisierung von Zugriffsmöglichkeiten reicht jedoch nicht aus, denn das Hauptproblem der inhaltlichen, strukturellen und konzeptionellen Differenz der einzelnen Datenbestände wird damit nicht gelöst. Um diese Differenzen zu kompensieren, werden Problemlösungen und Weiterentwicklungen innerhalb des Projekts CARMEN in drei Bereichen erarbeitet: (1) Metadaten (Dokumentbeschreibung, Retrieval, Verwaltung, Archivierung) (2) Methoden des Umgangs mit der verbleibenden Heterogenität der Datenbestände (3) Retrieval für strukturierte Dokumente mit Metadaten und heterogenen Datentypen. Diese drei Aufgabenbereiche hängen eng zusammen. Durch die Entwicklungen im Bereich der Metadaten soll einerseits die verlorengegangene Konsistenz partiell wiederhergestellt und auf eine den neuen Medien gerechte Basis gestellt werden. Andererseits sollen durch Verfahren zur Heterogenitätsbehandlung Dokumente mit unterschiedlicher Datenrelevanz und Inhaltserschließung aufeinander bezogen und retrievalseitig durch ein Rechercheverfahren erganzt werden, das den unterschiedlichen Datentypen gerecht wird Innerhalb des Gesamtprojekts CARMEN werden diese Aspekte arbeitsteilig behandelt. Acht Arbeitspakete (APs) befassen sich in Abstimmung miteinander mit je verschiedenen Schwerpunkten. Um die Koordination der Arbeiten der verschiedenen APs untereinander zu unterstützen, trafen sich die ca. 40 Projektbearbeiter am 1. und 2. Februar 2001 zum "CARMEN middle OfTheRoad Workshop" in Bonn. Anlässlich dieses Workshops wurden die inhaltlichen und technischen Ergebnisse, die in der ersten Hälfte der Projektlaufzeit von den einzelnen APs erzielt worden sind, in insgesamt 17 Präsentationen vorgestellt
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Tappenbeck, I.; Wessel, C.: CARMEN : Content Analysis, Retrieval and Metadata: Effective Net-working. Bericht über den middleOfTheRoad Workshop (2001)
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- Abstract
- Das Projekt CARMEN startete als Sonderfördermaßnahme im Rahmen von Global lnfo im Oktober 1999 mit einer geplanten Laufzeit von 29 Monaten. Der Schwerpunkt des Projekts liegt in der Weiterentwicklung von Konzepten und Verfahren der Dokumenterschließung, die den Zugriff auf heterogene, dezentral verteilte Informationsbestände und deren Verwaltung nach gemeinsamen Prinzipien ermöglichen sollen. Dabei geht CARMEN gezielt einen anderen Weg als die meisten bisherigen Ansätze in diesem Bereich, die versuchen, Homogenität und Konsistenz in einer dezentralen Informationslandschaft technikorientiert herzustellen, indem Verfahren entwickelt werden, durch die physikalisch auf verschiedene Dokumentenräume gleichzeitig zugegriffen werden kann. Eine rein technische Parallelisierung von Zugriffsmöglichkeiten reicht jedoch nicht aus, denn das Hauptproblem der inhaltlichen, strukturellen und konzeptionellen Differenz der einzelnen Datenbestände wird damit nicht gelöst. Um diese Differenzen zu kompensieren, werden Problemlösungen und Weiterentwicklungen innerhalb des Projekts CARMEN in drei Bereichen erarbeitet: (1) Metadaten (Dokumentbeschreibung, Retrieval, Verwaltung, Archivierung) (2) Methoden des Umgangs mit der verbleibenden Heterogenität der Datenbestände (3) Retrieval für strukturierte Dokumente mit Metadaten und heterogenen Datentypen. Diese drei Aufgabenbereiche hängen eng zusammen. Durch die Entwicklungen im Bereich der Metadaten soll einerseits die verlorengegangene Konsistenz partiell wiederhergestellt und auf eine den neuen Medien gerechte Basis gestellt werden. Andererseits sollen durch Verfahren zur Heterogenitätsbehandlung Dokumente mit unterschiedlicher Datenrelevanz und Inhaltserschließung aufeinander bezogen und retrievalseitig durch ein Rechercheverfahren erganzt werden, das den unterschiedlichen Datentypen gerecht wird Innerhalb des Gesamtprojekts CARMEN werden diese Aspekte arbeitsteilig behandelt. Acht Arbeitspakete (APs) befassen sich in Abstimmung miteinander mit je verschiedenen Schwerpunkten. Um die Koordination der Arbeiten der verschiedenen APs untereinander zu unterstützen, trafen sich die ca. 40 Projektbearbeiter am 1. und 2. Februar 2001 zum "CARMEN middle OfTheRoad Workshop" in Bonn. Anlässlich dieses Workshops wurden die inhaltlichen und technischen Ergebnisse, die in der ersten Hälfte der Projektlaufzeit von den einzelnen APs erzielt worden sind, in insgesamt 17 Präsentationen vorgestellt
-
Woldering, B.: Aufbau einer virtuellen europäischen Nationalbibliothek : Von Gabriel zu The European Library (2004)
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- Date
- 15. 2.2006 11:25:29
