Search (27 results, page 1 of 2)

  • × author_ss:"Fuhr, N."
  • × type_ss:"a"
  1. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.06 
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    Date
    20.10.2000 12:22:23
    Language
    d
    Pages
    S.319-339
  2. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.05 
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    Date
    14. 6.2015 22:12:44
    Language
    d
    Pages
    S.222-238
  3. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.05 
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    Date
    14. 6.2015 22:12:56
    Language
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    Pages
    S.144-162
  4. Biebricher, N.; Fuhr, N.; Lustig, G.; Schwantner, M.; Knorz, G.: ¬The automatic indexing system AIR/PHYS : from research to application (1988) 0.02 
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    Date
    16. 8.1998 12:51:22
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.513-517.
    Pages
    S.333-342
  5. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.01 
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    Date
    16.11.2008 16:22:48
    Pages
    S.476-487
  6. Fuhr, N.: Konzepte zur Gestaltung zukünftiger Information-Retrieval-Systeme (1992) 0.01 
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    S.59-75
  7. Fuhr, N.: von theoretischen Konzepten zur praktischen Anwendung : Hypertext und Information Retrieval (1990) 0.01 
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    S.101-111
  8. Fuhr, N.: Tendenzen der Informationssysteme (1990) 0.01 
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    S.1172-1183
  9. Fuhr, N.: Modelle im Information Retrieval (2013) 0.01 
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    d
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    S.322-335
    Source
    Grundlagen der praktischen Information und Dokumentation. Handbuch zur Einführung in die Informationswissenschaft und -praxis. 6., völlig neu gefaßte Ausgabe. Hrsg. von R. Kuhlen, W. Semar u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried
  10. Ammersbach, K.; Fuhr, N.; Knorz, G.: Empirisch gestützte Konzeption einer neuen Generation von Werkstoffdatenbanken (1988) 0.01 
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  11. Biebricher, P.; Fuhr, N.; Lustig, G.; Schwantner, M.; Knorz, G.: ¬Das automatische Indexierungssystem AIR/PHYS (1988) 0.01 
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  12. Biebricher, P.; Fuhr, N.; Niewelt, B.: ¬Der AIR-Retrievaltest (1986) 0.01 
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  13. Fuhr, N.; Kuhlen, R.; Ockenfeld, M.; Womser-Hacker, C.: Gerhard Knorz ┼ : Prof. Dr. Gerhard Knorz, geboren am 21. Juni 1951, ist am 16. März 2015 im Alter von 63 Jahren verstorben (2015) 0.01 
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    Information - Wissenschaft und Praxis. 66(2015) H.4, S.269-270
  14. Biebricher, P.; Fuhr, N.; Knorz, G.; Lustig, G.; Schwandtner, M.: Entwicklung und Anwendung des automatischen Indexierungssystems AIR/PHYS (1988) 0.01 
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    Nachrichten für Dokumentation. 39(1988), S.135-143
  15. Fuhr, N.: Zur Überwindung der Diskrepanz zwischen Retrievalforschung und -praxis (1990) 0.01 
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    Nachrichten für Dokumentation. 41(1990), S.3-7
  16. Fuhr, N.: Klassifikationsverfahren bei der automatischen Indexierung (1983) 0.01 
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  17. Kriewel, S.; Klas, C.P.; Schaefer, A.; Fuhr, N.: DAFFODIL : strategic support for user-oriented access to heterogeneous digital libraries (2004) 0.01 
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    D-Lib magazine. 10(2004) no.6, x S
  18. Fuhr, N.: Repräsentationen und Anfragefunktionalität in multimedialen Informationssystemen (1990) 0.01 
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  19. Fuhr, N.: Theorie des Information Retrieval I : Modelle (2004) 0.01 
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    Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
  20. Fuhr, N.: Modelle im Information Retrieval (2023) 0.00 
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    Abstract
    Information-Retrieval-Modelle -(IR-Modelle) spezifizieren, wie zu einer gegebenen Anfrage die Antwortdokumente aus einer Dokumentenkollektion bestimmt werden. Ausgangsbasis jedes Modells sind dabei zunächst bestimmte Annahmen über die Wissensrepräsentation (s. Teil B Methoden und Systeme der Inhaltserschließung) von Fragen und Dokumenten. Hier bezeichnen wir die Elemente dieser Repräsentationen als Terme, wobei es aus der Sicht des Modells egal ist, wie diese Terme aus dem Dokument (und analog aus der von Benutzenden eingegebenen Anfrage) abgeleitet werden: Bei Texten werden hierzu häufig computerlinguistische Methoden eingesetzt, aber auch komplexere automatische oder manuelle Erschließungsverfahren können zur Anwendung kommen. Repräsentationen besitzen ferner eine bestimmte Struktur. Ein Dokument wird meist als Menge oder Multimenge von Termen aufgefasst, wobei im zweiten Fall das Mehrfachvorkommen berücksichtigt wird. Diese Dokumentrepräsentation wird wiederum auf eine sogenannte Dokumentbeschreibung abgebildet, in der die einzelnen Terme gewichtet sein können. Im Folgenden unterscheiden wir nur zwischen ungewichteter (Gewicht eines Terms ist entweder 0 oder 1) und gewichteter Indexierung (das Gewicht ist eine nichtnegative reelle Zahl). Analog dazu gibt es eine Fragerepräsentation; legt man eine natürlichsprachige Anfrage zugrunde, so kann man die o. g. Verfahren für Dokumenttexte anwenden. Alternativ werden auch grafische oder formale Anfragesprachen verwendet, wobei aus Sicht der Modelle insbesondere deren logische Struktur (etwa beim Booleschen Retrieval) relevant ist. Die Fragerepräsentation wird dann in eine Fragebeschreibung überführt.
    Language
    d
    Pages
    S.379-398

Authors

Years

Languages

  • d 17
  • e 10

Themes