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  • × theme_ss:"Automatisches Indexieren"
  1. Junger, U.: Möglichkeiten und Probleme automatischer Erschließungsverfahren in Bibliotheken : Bericht vom KASCADE-Workshop in der Universitäts- und Landesbibliothek Düsseldorf (1999) 0.30 
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    Source
    Bibliothek: Forschung und Praxis. 23(1999) H.1, S.88-90
  2. Junger, U.: Can indexing be automated? : the example of the Deutsche Nationalbibliothek (2012) 0.24 
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    Abstract
    The German subject headings authority file (Schlagwortnormdatei/SWD) provides a broad controlled vocabulary for indexing documents of all subjects. Traditionally used for intellectual subject cataloguing primarily of books the Deutsche Nationalbibliothek (DNB, German National Library) has been working on developping and implementing procedures for automated assignment of subject headings for online publications. This project, its results and problems are sketched in the paper.
  3. Junger, U.; Müller-Dreier, A.: Bericht über den Workshop 'Perspektiven der Sacherschließung im GBV' am 12. März 1998 in der TIB Hannover (1999) 0.24 
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    Source
    Mitteilungsblatt der Bibliotheken in Niedersachsen und Sachsen-Anhalt. 1998, H.110, S.14-18
  4. Junger, U.: Can indexing be automated? : the example of the Deutsche Nationalbibliothek (2014) 0.22 
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    Abstract
    The German Integrated Authority File (Gemeinsame Normdatei, GND), provides a broad controlled vocabulary for indexing documents on all subjects. Traditionally used for intellectual subject cataloging primarily for books, the Deutsche Nationalbibliothek (DNB, German National Library) has been working on developing and implementing procedures for automated assignment of subject headings for online publications. This project, its results, and problems are outlined in this article.
  5. Junger, U.; Scholze, F.: Neue Wege und Qualitäten : die Inhaltserschließungspolitik der Deutschen Nationalbibliothek (2021) 0.17 
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    Abstract
    Es kommt nicht oft vor, dass ein bibliothekfachliches Thema Gegenstand eines ganzseitigen Artikels im Feuilleton einer der wichtigsten überregionalen Zeitungen in Deutschland wird. Am 31. Juli 2017 war dies der Fall: Die Frankfurter Allgemeine Zeitung veröffentlichte einen Artikel des Generaldirektors der Bayerischen Staatsbibliothek, Klaus Ceynowa, in dem dieser sich kritisch mit einem Konzept zur inhaltlichen Erschließung auseinandersetzte, das die Deutsche Nationalbibliothek (DNB) zuvor für die deutschsprachige bibliothekarische Community veröffentlicht hatte. Hatten bereits zuvor die Bemühungen der DNB, Verfahren zur maschinellen Dokumenterschließung zu entwickeln und einzusetzen, zu kontroversen Reaktionen im Bibliothekswesen geführt, so sorgte dieser Artikel noch einmal in besonderer Weise für Aufmerksamkeit und Diskussionen zu einem Thema, das vielen als eher verstaubt und unattraktiv galt: die Inhaltserschließung. Der folgende Beitrag zeichnet einige Grundlinien der Erschließungspolitik der DNB seit 2010 nach und beschreibt, welche Instrumente und Verfahren bei der Inhaltserschließung zum Einsatz kommen, welche konzeptionellen Entscheidungen ihr zugrunde liegen, wie versucht wird, Qualität zu erfassen und welche Entwicklungs- und Handlungsfelder für die Zukunft gesehen werden.
    Series
    Bibliotheks- und Informationspraxis; 70
  6. Junger, U.; Schwens, U.: ¬Die inhaltliche Erschließung des schriftlichen kulturellen Erbes auf dem Weg in die Zukunft : Automatische Vergabe von Schlagwörtern in der Deutschen Nationalbibliothek (2017) 0.14 
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    Abstract
    Wir leben im 21. Jahrhundert, und vieles, was vor hundert und noch vor fünfzig Jahren als Science Fiction abgetan worden wäre, ist mittlerweile Realität. Raumsonden fliegen zum Mars, machen dort Experimente und liefern Daten zur Erde zurück. Roboter werden für Routineaufgaben eingesetzt, zum Beispiel in der Industrie oder in der Medizin. Digitalisierung, künstliche Intelligenz und automatisierte Verfahren sind kaum mehr aus unserem Alltag wegzudenken. Grundlage vieler Prozesse sind lernende Algorithmen. Die fortschreitende digitale Transformation ist global und umfasst alle Lebens- und Arbeitsbereiche: Wirtschaft, Gesellschaft und Politik. Sie eröffnet neue Möglichkeiten, von denen auch Bibliotheken profitieren. Der starke Anstieg digitaler Publikationen, die einen wichtigen und prozentual immer größer werdenden Teil des Kulturerbes darstellen, sollte für Bibliotheken Anlass sein, diese Möglichkeiten aktiv aufzugreifen und einzusetzen. Die Auswertbarkeit digitaler Inhalte, beispielsweise durch Text- and Data-Mining (TDM), und die Entwicklung technischer Verfahren, mittels derer Inhalte miteinander vernetzt und semantisch in Beziehung gesetzt werden können, bieten Raum, auch bibliothekarische Erschließungsverfahren neu zu denken. Daher beschäftigt sich die Deutsche Nationalbibliothek (DNB) seit einigen Jahren mit der Frage, wie sich die Prozesse bei der Erschließung von Medienwerken verbessern und maschinell unterstützen lassen. Sie steht dabei im regelmäßigen kollegialen Austausch mit anderen Bibliotheken, die sich ebenfalls aktiv mit dieser Fragestellung befassen, sowie mit europäischen Nationalbibliotheken, die ihrerseits Interesse an dem Thema und den Erfahrungen der DNB haben. Als Nationalbibliothek mit umfangreichen Beständen an digitalen Publikationen hat die DNB auch Expertise bei der digitalen Langzeitarchivierung aufgebaut und ist im Netzwerk ihrer Partner als kompetente Gesprächspartnerin geschätzt.
  7. Qualität in der Inhaltserschließung (2021) 0.13 
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    Abstract
    Der 70. Band der BIPRA-Reihe beschäftigt sich mit der Qualität in der Inhaltserschließung im Kontext etablierter Verfahren und technologischer Innovationen. Treffen heterogene Erzeugnisse unterschiedlicher Methoden und Systeme aufeinander, müssen minimale Anforderungen an die Qualität der Inhaltserschließung festgelegt werden. Die Qualitätsfrage wird zurzeit in verschiedenen Zusammenhängen intensiv diskutiert und im vorliegenden Band aufgegriffen. In diesem Themenfeld aktive Autor:innen beschreiben aus ihrem jeweiligen Blickwinkel unterschiedliche Aspekte zu Metadaten, Normdaten, Formaten, Erschließungsverfahren und Erschließungspolitik. Der Band versteht sich als Handreichung und Anregung für die Diskussion um die Qualität in der Inhaltserschließung.
    Content
    Inhalt: Editorial - Michael Franke-Maier, Anna Kasprzik, Andreas Ledl und Hans Schürmann Qualität in der Inhaltserschließung - Ein Überblick aus 50 Jahren (1970-2020) - Andreas Ledl Fit for Purpose - Standardisierung von inhaltserschließenden Informationen durch Richtlinien für Metadaten - Joachim Laczny Neue Wege und Qualitäten - Die Inhaltserschließungspolitik der Deutschen Nationalbibliothek - Ulrike Junger und Frank Scholze Wissensbasen für die automatische Erschließung und ihre Qualität am Beispiel von Wikidata - Lydia Pintscher, Peter Bourgonje, Julián Moreno Schneider, Malte Ostendorff und Georg Rehm Qualitätssicherung in der GND - Esther Scheven Qualitätskriterien und Qualitätssicherung in der inhaltlichen Erschließung - Thesenpapier des Expertenteams RDA-Anwendungsprofil für die verbale Inhaltserschließung (ET RAVI) Coli-conc - Eine Infrastruktur zur Nutzung und Erstellung von Konkordanzen - Uma Balakrishnan, Stefan Peters und Jakob Voß Methoden und Metriken zur Messung von OCR-Qualität für die Kuratierung von Daten und Metadaten - Clemens Neudecker, Karolina Zaczynska, Konstantin Baierer, Georg Rehm, Mike Gerber und Julián Moreno Schneider Datenqualität als Grundlage qualitativer Inhaltserschließung - Jakob Voß Bemerkungen zu der Qualitätsbewertung von MARC-21-Datensätzen - Rudolf Ungváry und Péter Király Named Entity Linking mit Wikidata und GND - Das Potenzial handkuratierter und strukturierter Datenquellen für die semantische Anreicherung von Volltexten - Sina Menzel, Hannes Schnaitter, Josefine Zinck, Vivien Petras, Clemens Neudecker, Kai Labusch, Elena Leitner und Georg Rehm Ein Protokoll für den Datenabgleich im Web am Beispiel von OpenRefine und der Gemeinsamen Normdatei (GND) - Fabian Steeg und Adrian Pohl Verbale Erschließung in Katalogen und Discovery-Systemen - Überlegungen zur Qualität - Heidrun Wiesenmüller Inhaltserschließung für Discovery-Systeme gestalten - Jan Frederik Maas Evaluierung von Verschlagwortung im Kontext des Information Retrievals - Christian Wartena und Koraljka Golub Die Qualität der Fremddatenanreicherung FRED - Cyrus Beck Quantität als Qualität - Was die Verbünde zur Verbesserung der Inhaltserschließung beitragen können - Rita Albrecht, Barbara Block, Mathias Kratzer und Peter Thiessen Hybride Künstliche Intelligenz in der automatisierten Inhaltserschließung - Harald Sack
    Footnote
    Vgl.: https://www.degruyter.com/document/doi/10.1515/9783110691597/html. DOI: https://doi.org/10.1515/9783110691597. Rez. in: Information - Wissenschaft und Praxis 73(2022) H.2-3, S.131-132 (B. Lorenz u. V. Steyer). Weitere Rezension in: o-bib 9(20229 Nr.3. (Martin Völkl) [https://www.o-bib.de/bib/article/view/5843/8714].
    Series
    Bibliotheks- und Informationspraxis; 70
  8. Tavakolizadeh-Ravari, M.: Analysis of the long term dynamics in thesaurus developments and its consequences (2017) 0.06 
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    Abstract
    Die Arbeit analysiert die dynamische Entwicklung und den Gebrauch von Thesaurusbegriffen. Zusätzlich konzentriert sie sich auf die Faktoren, die die Zahl von Indexbegriffen pro Dokument oder Zeitschrift beeinflussen. Als Untersuchungsobjekt dienten der MeSH und die entsprechende Datenbank "MEDLINE". Die wichtigsten Konsequenzen sind: 1. Der MeSH-Thesaurus hat sich durch drei unterschiedliche Phasen jeweils logarithmisch entwickelt. Solch einen Thesaurus sollte folgenden Gleichung folgen: "T = 3.076,6 Ln (d) - 22.695 + 0,0039d" (T = Begriffe, Ln = natürlicher Logarithmus und d = Dokumente). Um solch einen Thesaurus zu konstruieren, muss man demnach etwa 1.600 Dokumente von unterschiedlichen Themen des Bereiches des Thesaurus haben. Die dynamische Entwicklung von Thesauri wie MeSH erfordert die Einführung eines neuen Begriffs pro Indexierung von 256 neuen Dokumenten. 2. Die Verteilung der Thesaurusbegriffe erbrachte drei Kategorien: starke, normale und selten verwendete Headings. Die letzte Gruppe ist in einer Testphase, während in der ersten und zweiten Kategorie die neu hinzukommenden Deskriptoren zu einem Thesauruswachstum führen. 3. Es gibt ein logarithmisches Verhältnis zwischen der Zahl von Index-Begriffen pro Aufsatz und dessen Seitenzahl für die Artikeln zwischen einer und einundzwanzig Seiten. 4. Zeitschriftenaufsätze, die in MEDLINE mit Abstracts erscheinen erhalten fast zwei Deskriptoren mehr. 5. Die Findablity der nicht-englisch sprachigen Dokumente in MEDLINE ist geringer als die englische Dokumente. 6. Aufsätze der Zeitschriften mit einem Impact Factor 0 bis fünfzehn erhalten nicht mehr Indexbegriffe als die der anderen von MEDINE erfassten Zeitschriften. 7. In einem Indexierungssystem haben unterschiedliche Zeitschriften mehr oder weniger Gewicht in ihrem Findability. Die Verteilung der Indexbegriffe pro Seite hat gezeigt, dass es bei MEDLINE drei Kategorien der Publikationen gibt. Außerdem gibt es wenige stark bevorzugten Zeitschriften."
    Footnote
    Dissertation, Humboldt-Universität zu Berlin - Institut für Bibliotheks- und Informationswissenschaft.
    Imprint
    Berlin : Humboldt-Universität zu Berlin / Institut für Bibliotheks- und Informationswissenschaft
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  9. Plaunt, C.; Norgard, B.A.: ¬An association-based method for automatic indexing with a controlled vocabulary (1998) 0.05 
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    Abstract
    In this article, we describe and test a two-stage algorithm based on a lexical collocation technique which maps from the lexical clues contained in a document representation into a controlled vocabulary list of subject headings. Using a collection of 4.626 INSPEC documents, we create a 'dictionary' of associations between the lexical items contained in the titles, authors, and abstracts, and controlled vocabulary subject headings assigned to those records by human indexers using a likelihood ratio statistic as the measure of association. In the deployment stage, we use the dictiony to predict which of the controlled vocabulary subject headings best describe new documents when they are presented to the system. Our evaluation of this algorithm, in which we compare the automatically assigned subject headings to the subject headings assigned to the test documents by human catalogers, shows that we can obtain results comparable to, and consistent with, human cataloging. In effect we have cast this as a classic partial match information retrieval problem. We consider the problem to be one of 'retrieving' (or assigning) the most probably 'relevant' (or correct) controlled vocabulary subject headings to a document based on the clues contained in that document
  10. Olsgaard, J.N.; Evans, E.J.: Improving keyword indexing (1981) 0.04 
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    Abstract
    This communication examines some of the most frequently cited critisms of keyword indexing. These critisms include (1) absence of general subject headings, (2) limited entry points, and (3) irrelevant indexing. Some solutions are suggested to meet these critisms.
  11. Short, M.: Text mining and subject analysis for fiction; or, using machine learning and information extraction to assign subject headings to dime novels (2019) 0.04 
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    Abstract
    This article describes multiple experiments in text mining at Northern Illinois University that were undertaken to improve the efficiency and accuracy of cataloging. It focuses narrowly on subject analysis of dime novels, a format of inexpensive fiction that was popular in the United States between 1860 and 1915. NIU holds more than 55,000 dime novels in its collections, which it is in the process of comprehensively digitizing. Classification, keyword extraction, named-entity recognition, clustering, and topic modeling are discussed as means of assigning subject headings to improve their discoverability by researchers and to increase the productivity of digitization workflows.
  12. Willis, C.; Losee, R.M.: ¬A random walk on an ontology : using thesaurus structure for automatic subject indexing (2013) 0.04 
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    Abstract
    Relationships between terms and features are an essential component of thesauri, ontologies, and a range of controlled vocabularies. In this article, we describe ways to identify important concepts in documents using the relationships in a thesaurus or other vocabulary structures. We introduce a methodology for the analysis and modeling of the indexing process based on a weighted random walk algorithm. The primary goal of this research is the analysis of the contribution of thesaurus structure to the indexing process. The resulting models are evaluated in the context of automatic subject indexing using four collections of documents pre-indexed with 4 different thesauri (AGROVOC [UN Food and Agriculture Organization], high-energy physics taxonomy [HEP], National Agricultural Library Thesaurus [NALT], and medical subject headings [MeSH]). We also introduce a thesaurus-centric matching algorithm intended to improve the quality of candidate concepts. In all cases, the weighted random walk improves automatic indexing performance over matching alone with an increase in average precision (AP) of 9% for HEP, 11% for MeSH, 35% for NALT, and 37% for AGROVOC. The results of the analysis support our hypothesis that subject indexing is in part a browsing process, and that using the vocabulary and its structure in a thesaurus contributes to the indexing process. The amount that the vocabulary structure contributes was found to differ among the 4 thesauri, possibly due to the vocabulary used in the corresponding thesauri and the structural relationships between the terms. Each of the thesauri and the manual indexing associated with it is characterized using the methods developed here.
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  13. Abdul, H.; Khoo, C.: Automatic indexing of medical literature using phrase matching : an exploratory study 0.03 
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    Abstract
    Reports the 1st part of a study to apply the technique of phrase matching to the automatic assignment of MeSH subject headings and subheadings to abstracts of periodical articles.
  14. Losee, R.M.: ¬A Gray code based ordering for documents on shelves : classification for browsing and retrieval (1992) 0.03 
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    Abstract
    A document classifier places documents together in a linear arrangement for browsing or high-speed access by human or computerised information retrieval systems. Requirements for document classification and browsing systems are developed from similarity measures, distance measures, and the notion of subject aboutness. A requirement that documents be arranged in decreasing order of similarity as the distance from a given document increases can often not be met. Based on these requirements, information-theoretic considerations, and the Gray code, a classification system is proposed that can classifiy documents without human intervention. A measure of classifier performance is developed, and used to evaluate experimental results comparing the distance between subject headings assigned to documents given classifications from the proposed system and the Library of Congress Classification (LCC) system
  15. Shafer, K.: Scorpion Project explores using Dewey to organize the Web (1996) 0.03 
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    Abstract
    As the amount of accessible information on the WWW increases, so will the cost of accessing it, even if search servcies remain free, due to the increasing amount of time users will have to spend to find needed items. Considers what the seemingly unorganized Web and the organized world of libraries can offer each other. The OCLC Scorpion Project is attempting to combine indexing and cataloguing, specifically focusing on building tools for automatic subject recognition using the technqiues of library science and information retrieval. If subject headings or concept domains can be automatically assigned to electronic items, improved filtering tools for searching can be produced
  16. Moulaison-Sandy, H.; Adkins, D.; Bossaller, J.; Cho, H.: ¬An automated approach to describing fiction : a methodology to use book reviews to identify affect (2021) 0.03 
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    Abstract
    Subject headings and genre terms are notoriously difficult to apply, yet are important for fiction. The current project functions as a proof of concept, using a text-mining methodology to identify affective information (emotion and tone) about fiction titles from professional book reviews as a potential first step in automating the subject analysis process. Findings are presented and discussed, comparing results to the range of aboutness and isness information in library cataloging records. The methodology is likewise presented, and how future work might expand on the current project to enhance catalog records through text-mining is explored.
  17. Chou, C.; Chu, T.: ¬An analysis of BERT (NLP) for assisted subject indexing for Project Gutenberg (2022) 0.03 
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    Abstract
    In light of AI (Artificial Intelligence) and NLP (Natural language processing) technologies, this article examines the feasibility of using AI/NLP models to enhance the subject indexing of digital resources. While BERT (Bidirectional Encoder Representations from Transformers) models are widely used in scholarly communities, the authors assess whether BERT models can be used in machine-assisted indexing in the Project Gutenberg collection, through suggesting Library of Congress subject headings filtered by certain Library of Congress Classification subclass labels. The findings of this study are informative for further research on BERT models to assist with automatic subject indexing for digital library collections.
  18. Gil-Leiva, I.: SISA-automatic indexing system for scientific articles : experiments with location heuristics rules versus TF-IDF rules (2017) 0.03 
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    Abstract
    Indexing is contextualized and a brief description is provided of some of the most used automatic indexing systems. We describe SISA, a system which uses location heuristics rules, statistical rules like term frequency (TF) or TF-IDF to obtain automatic or semi-automatic indexing, depending on the user's preference. The aim of this research is to ascertain which rules (location heuristics rules or TF-IDF rules) provide the best indexing terms. SISA is used to obtain the automatic indexing of 200 scientific articles on fruit growing written in Portuguese. It uses, on the one hand, location heuristics rules founded on the value of certain parts of the articles for indexing such as titles, abstracts, keywords, headings, first paragraph, conclusions and references and, on the other, TF-IDF rules. The indexing is then evaluated to ascertain retrieval performance through recall, precision and f-measure. Automatic indexing of the articles with location heuristics rules provided the best results with the evaluation measures.
  19. Thönssen, B.: Automatische Indexierung und Schnittstellen zu Thesauri (1988) 0.02 
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    Abstract
    Über eine Schnittstelle zwischen Programmen zur automatischen Indexierung (PRIMUS-IDX) und zur maschinellen Thesaurusverwaltung (INDEX) sollen große Textmengen schnell, kostengünstig und konsistent erschlossen und verbesserte Recherchemöglichkeiten geschaffen werden. Zielvorstellung ist ein Verfahren, das auf PCs ablauffähig ist und speziell deutschsprachige Texte bearbeiten kann
    Theme
    Konzeption und Anwendung des Prinzips Thesaurus
  20. Hauer, M.: Neue Qualitäten in Bibliotheken : Durch Content-Ergänzung, maschinelle Indexierung und modernes Information Retrieval können Recherchen in Bibliothekskatalogen deutlich verbessert werden (2004) 0.02 
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    Abstract
    Seit Frühjahr 2004 ist Dandelon.com als neues, offenes, internationales Wissenschaftsportal in Betrieb. Erste Retrieval-Tests bescheinigen deutlich bessere Suchergebnisse als in herkömmlichen OPACs oder Verbundsystemen. Seine Daten stammen aus intelligentCAPTURE und Bibliothekskatalogen. intelligentCAPTURE erfasst Content über Scanning oder File-Import oder Web-Spidering und indexiert nach morphosyntaktischen und semantischen Verfahren. Aufbereiteter Content und Indexate gehen an Bibliothekssysteme und an dandelon.com. Dandelon.com ist kostenlos zugänglich für Endbenutzer und ist zugleich Austauschzentrale und Katalogerweiterung für angeschlossene Bibliotheken. Neue Inhalte können so kostengünstig und performant erschlossen werden.

Authors

Years

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  • d 161
  • e 25
  • a 1
  • m 1
  • nl 1
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Types

  • a 136
  • x 31
  • el 23
  • m 11
  • s 5
  • d 1
  • h 1
  • p 1
  • r 1
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Themes

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