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Nohr, H.: Rechnergestützte Gruppenarbeit : Computer-Supported Cooperative Work (CSCW) (2004)
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- Pages
- S.453-460
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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
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Nohr, H.: Präkombination klassifikatorischer und verbaler Sacherschließungsdaten und ihr Potential im Information Retrieval (1992)
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- Pages
- S.151-159
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- Die Systematik im OPAC: über das Instrumentarium zum Ordnen und Wiederfinden. Vorträge aus den bibliothekarischen Arbeitsgruppen der 16. Jahrestagung der Gesellschaft für Klassifikation, Dortmund 1992. Hrsg.: H.-J. Hermes u. H. Havekost
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Nohr, H.: Wissensmanagement (2004)
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- Pages
- S.257-270
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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
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Nohr, H.: Theorie des Information Retrieval II : Automatische Indexierung (2004)
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- Pages
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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
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Nohr, H.: Maschinelle Experten für Information Retrieval (1991)
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- Source
- Informatik. 38(1991) H.6, S.234-235
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Nohr, H.: Buch - Computer - Bibliothek (1992)
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- Source
- Auskunft. 12(1992) H.4, S.315-327
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Nohr, H.: Systematische Erschließung in deutschen Öffentlichen Bibliotheken (1996)
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- Footnote
- Rez. in: BuB 49(1997) H.6, S.458-459 (M. Reisser); Bibliothek: Forschung u. Praxis 21(1997) H.3, S.378-379 (B. Hütter); Knowledge organization 25(1998) nos.1/2, S.47-48 (B.W.J. Lorenz); IfB 7(1999) H.1/4, S.172-174 (W. Gödert)
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Nohr, H.: Welche Zukunft für Multimedia? (1995)
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- Footnote
- Erwiderung auf H. Niederehe: MULTIMEDIA - Informationsangebot für die Zukunft? in: Info 7. 9(1994) H.1, S.13-19.
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- Info 7. 10(1995) H.1, S.2-3
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Nohr, H.: Grundlagen der automatischen Indexierung : ein Lehrbuch (2003)
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- Date
- 22. 6.2009 12:46:51
- Footnote
- Rez. in: nfd 54(2003) H.5, S.314 (W. Ratzek): "Um entscheidungsrelevante Daten aus der ständig wachsenden Flut von mehr oder weniger relevanten Dokumenten zu extrahieren, müssen Unternehmen, öffentliche Verwaltung oder Einrichtungen der Fachinformation effektive und effiziente Filtersysteme entwickeln, einsetzen und pflegen. Das vorliegende Lehrbuch von Holger Nohr bietet erstmalig eine grundlegende Einführung in das Thema "automatische Indexierung". Denn: "Wie man Information sammelt, verwaltet und verwendet, wird darüber entscheiden, ob man zu den Gewinnern oder Verlierern gehört" (Bill Gates), heißt es einleitend. Im ersten Kapitel "Einleitung" stehen die Grundlagen im Mittelpunkt. Die Zusammenhänge zwischen Dokumenten-Management-Systeme, Information Retrieval und Indexierung für Planungs-, Entscheidungs- oder Innovationsprozesse, sowohl in Profit- als auch Non-Profit-Organisationen werden beschrieben. Am Ende des einleitenden Kapitels geht Nohr auf die Diskussion um die intellektuelle und automatische Indexierung ein und leitet damit über zum zweiten Kapitel "automatisches Indexieren. Hier geht der Autor überblickartig unter anderem ein auf - Probleme der automatischen Sprachverarbeitung und Indexierung - verschiedene Verfahren der automatischen Indexierung z.B. einfache Stichwortextraktion / Volltextinvertierung, - statistische Verfahren, Pattern-Matching-Verfahren. Die "Verfahren der automatischen Indexierung" behandelt Nohr dann vertiefend und mit vielen Beispielen versehen im umfangreichsten dritten Kapitel. Das vierte Kapitel "Keyphrase Extraction" nimmt eine Passpartout-Status ein: "Eine Zwischenstufe auf dem Weg von der automatischen Indexierung hin zur automatischen Generierung textueller Zusammenfassungen (Automatic Text Summarization) stellen Ansätze dar, die Schlüsselphrasen aus Dokumenten extrahieren (Keyphrase Extraction). Die Grenzen zwischen den automatischen Verfahren der Indexierung und denen des Text Summarization sind fließend." (S. 91). Am Beispiel NCR"s Extractor/Copernic Summarizer beschreibt Nohr die Funktionsweise.
Im fünften Kapitel "Information Extraction" geht Nohr auf eine Problemstellung ein, die in der Fachwelt eine noch stärkere Betonung verdiente: "Die stetig ansteigende Zahl elektronischer Dokumente macht neben einer automatischen Erschließung auch eine automatische Gewinnung der relevanten Informationen aus diesen Dokumenten wünschenswert, um diese z.B. für weitere Bearbeitungen oder Auswertungen in betriebliche Informationssysteme übernehmen zu können." (S. 103) "Indexierung und Retrievalverfahren" als voneinander abhängige Verfahren werden im sechsten Kapitel behandelt. Hier stehen Relevance Ranking und Relevance Feedback sowie die Anwendung informationslinguistischer Verfahren in der Recherche im Mittelpunkt. Die "Evaluation automatischer Indexierung" setzt den thematischen Schlusspunkt. Hier geht es vor allem um die Oualität einer Indexierung, um gängige Retrievalmaße in Retrievaltest und deren Einssatz. Weiterhin ist hervorzuheben, dass jedes Kapitel durch die Vorgabe von Lernzielen eingeleitet wird und zu den jeweiligen Kapiteln (im hinteren Teil des Buches) einige Kontrollfragen gestellt werden. Die sehr zahlreichen Beispiele aus der Praxis, ein Abkürzungsverzeichnis und ein Sachregister erhöhen den Nutzwert des Buches. Die Lektüre förderte beim Rezensenten das Verständnis für die Zusammenhänge von BID-Handwerkzeug, Wirtschaftsinformatik (insbesondere Data Warehousing) und Künstlicher Intelligenz. Die "Grundlagen der automatischen Indexierung" sollte auch in den bibliothekarischen Studiengängen zur Pflichtlektüre gehören. Holger Nohrs Lehrbuch ist auch für den BID-Profi geeignet, um die mehr oder weniger fundierten Kenntnisse auf dem Gebiet "automatisches Indexieren" schnell, leicht verständlich und informativ aufzufrischen."
- Pages
- 153 S
- Theme
- Grundlagen u. Einführungen: Allgemeine Literatur
-
Kaps, G.; Nohr, H.: Erfolgsmessung im Wissensmanagement mit Balanced Scorecards : Teil 1 (2001)
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- Date
- 22. 3.2001 13:20:44
- Source
- nfd Information - Wissenschaft und Praxis. 52(2001) H.2, S.89-97
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Nohr, H.: Thesaurusarbeit mit LIDOS (1991)
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- Source
- Nachrichten für Dokumentation. 42(1991), S.217-219
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Nohr, H.: Tendenzen der OPAC-Entwicklung (1990)
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- Source
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Nohr, H.: Klassifikation online : Eine Antwort auf Marion Beaujean (1991)
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- Source
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Nohr, H.: Klassifikation als Basis einer Sacherschließungskomponente im OPAC : Anforderungen an Elemente und Struktur (1991)
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- Source
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Nohr, H.: Thesaurus zwischen Lust und Frust (1993)
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- Nachrichten für Dokumentation. 44(1993) H.6, S.376-377
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Nohr, H.: Nutzen unmittelbar einsichtig : Der Zeitschriftendienst (ZD) online (1997)
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Puhlmann, H.; Nohr, H.: Erschließung und Abfrage formaler Kriterien im Online-Kontext (1991)
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Nohr, H.: Virtuelle Bibliotheken : Fragen, Vorstellungen und neue 'alte' Aufgaben (1996)
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- BuB. 48(1996) H.10/11, S.824-830
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Nohr, H.: Subject access in german-language OPACs : a survey (1989)
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- International classification. 16(1989), S.95-100
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Nohr, H.: Grafische Tools für das Wissensmanagement : Wissenskarten: Wegweiser durch das Wissen einer Unternehmung (1999)
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