Search (35 results, page 1 of 2)

  • × theme_ss:"Automatisches Indexieren"
  1. Pintscher, L.; Bourgonje, P.; Moreno Schneider, J.; Ostendorff, M.; Rehm, G.: Wissensbasen für die automatische Erschließung und ihre Qualität am Beispiel von Wikidata : die Inhaltserschließungspolitik der Deutschen Nationalbibliothek (2021) 0.04 
    0.03672103 = product of:
  0.07344206 = sum of:
    0.07344206 = product of:
      0.14688411 = sum of:
        0.14688411 = weight(_text_:500 in 366) [ClassicSimilarity], result of:
          0.14688411 = score(doc=366,freq=4.0), product of:
            0.3075407 = queryWeight, product of:
              6.113391 = idf(docFreq=265, maxDocs=44218)
              0.050306078 = queryNorm
            0.47760868 = fieldWeight in 366, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.113391 = idf(docFreq=265, maxDocs=44218)
              0.0390625 = fieldNorm(doc=366)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Wikidata ist eine freie Wissensbasis, die allgemeine Daten über die Welt zur Verfügung stellt. Sie wird von Wikimedia entwickelt und betrieben, wie auch das Schwesterprojekt Wikipedia. Die Daten in Wikidata werden von einer großen Community von Freiwilligen gesammelt und gepflegt, wobei die Daten sowie die zugrundeliegende Ontologie von vielen Projekten, Institutionen und Firmen als Basis für Applikationen und Visualisierungen, aber auch für das Training von maschinellen Lernverfahren genutzt werden. Wikidata nutzt MediaWiki und die Erweiterung Wikibase als technische Grundlage der kollaborativen Arbeit an einer Wissensbasis, die verlinkte offene Daten für Menschen und Maschinen zugänglich macht. Ende 2020 beschreibt Wikidata über 90 Millionen Entitäten unter Verwendung von über 8 000 Eigenschaften, womit insgesamt mehr als 1,15 Milliarden Aussagen über die beschriebenen Entitäten getroffen werden. Die Datenobjekte dieser Entitäten sind mit äquivalenten Einträgen in mehr als 5 500 externen Datenbanken, Katalogen und Webseiten verknüpft, was Wikidata zu einem der zentralen Knotenpunkte des Linked Data Web macht. Mehr als 11 500 aktiv Editierende tragen neue Daten in die Wissensbasis ein und pflegen sie. Diese sind in Wiki-Projekten organisiert, die jeweils bestimmte Themenbereiche oder Aufgabengebiete adressieren. Die Daten werden in mehr als der Hälfte der Inhaltsseiten in den Wikimedia-Projekten genutzt und unter anderem mehr als 6,5 Millionen Mal am Tag über den SPARQL-Endpoint abgefragt, um sie in externe Applikationen und Visualisierungen einzubinden.
  2. Oberhauser, O.; Labner, J.: OPAC-Erweiterung durch automatische Indexierung : Empirische Untersuchung mit Daten aus dem Österreichischen Verbundkatalog (2002) 0.03 
    0.031158824 = product of:
  0.062317647 = sum of:
    0.062317647 = product of:
      0.124635294 = sum of:
        0.124635294 = weight(_text_:500 in 883) [ClassicSimilarity], result of:
          0.124635294 = score(doc=883,freq=2.0), product of:
            0.3075407 = queryWeight, product of:
              6.113391 = idf(docFreq=265, maxDocs=44218)
              0.050306078 = queryNorm
            0.40526438 = fieldWeight in 883, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              6.113391 = idf(docFreq=265, maxDocs=44218)
              0.046875 = fieldNorm(doc=883)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    In Anlehnung an die in den neunziger Jahren durchgeführten Erschließungsprojekte MILOS I und MILOS II, die die Eignung eines Verfahrens zur automatischen Indexierung für Bibliothekskataloge zum Thema hatten, wurde eine empirische Untersuchung anhand einer repräsentativen Stichprobe von Titelsätzen aus dem Österreichischen Verbundkatalog durchgeführt. Ziel war die Prüfung und Bewertung der Einsatzmöglichkeit dieses Verfahrens in den Online-Katalogen des Verbundes. Der Realsituation der OPAC-Benutzung gemäß wurde ausschließlich die Auswirkung auf den automatisch generierten Begriffen angereicherten Basic Index ("Alle Felder") untersucht. Dazu wurden 100 Suchanfragen zunächst im ursprünglichen Basic Index und sodann im angereicherten Basic Index in einem OPAC unter Aleph 500 durchgeführt. Die Tests erbrachten einen Zuwachs an relevanten Treffern bei nur leichten Verlusten an Precision, eine Reduktion der Nulltreffer-Ergebnisse sowie Aufschlüsse über die Auswirkung einer vorhandenen verbalen Sacherschließung.
  3. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.03 
    0.027263116 = product of:
  0.054526232 = sum of:
    0.054526232 = product of:
      0.109052464 = sum of:
        0.109052464 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
          0.109052464 = score(doc=402,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.61904186 = fieldWeight in 402, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.125 = fieldNorm(doc=402)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 22(1986) no.6, S.465-476
  4. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02 
    0.023855226 = product of:
  0.047710452 = sum of:
    0.047710452 = product of:
      0.095420904 = sum of:
        0.095420904 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
          0.095420904 = score(doc=262,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.5416616 = fieldWeight in 262, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=262)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20.10.2000 12:22:23
  5. Hlava, M.M.K.: Automatic indexing : comparing rule-based and statistics-based indexing systems (2005) 0.02 
    0.023855226 = product of:
  0.047710452 = sum of:
    0.047710452 = product of:
      0.095420904 = sum of:
        0.095420904 = weight(_text_:22 in 6265) [ClassicSimilarity], result of:
          0.095420904 = score(doc=6265,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.5416616 = fieldWeight in 6265, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=6265)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information outlook. 9(2005) no.8, S.22-23
  6. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.02 
    0.020447336 = product of:
  0.040894672 = sum of:
    0.040894672 = product of:
      0.081789345 = sum of:
        0.081789345 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
          0.081789345 = score(doc=58,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.46428138 = fieldWeight in 58, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=58)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    14. 6.2015 22:12:44
  7. Hauer, M.: Automatische Indexierung (2000) 0.02 
    0.020447336 = product of:
  0.040894672 = sum of:
    0.040894672 = product of:
      0.081789345 = sum of:
        0.081789345 = weight(_text_:22 in 5887) [ClassicSimilarity], result of:
          0.081789345 = score(doc=5887,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.46428138 = fieldWeight in 5887, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=5887)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Wissen in Aktion: Wege des Knowledge Managements. 22. Online-Tagung der DGI, Frankfurt am Main, 2.-4.5.2000. Proceedings. Hrsg.: R. Schmidt
  8. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.02 
    0.020447336 = product of:
  0.040894672 = sum of:
    0.040894672 = product of:
      0.081789345 = sum of:
        0.081789345 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
          0.081789345 = score(doc=2051,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.46428138 = fieldWeight in 2051, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=2051)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    14. 6.2015 22:12:56
  9. Hauer, M.: Tiefenindexierung im Bibliothekskatalog : 17 Jahre intelligentCAPTURE (2019) 0.02 
    0.020447336 = product of:
  0.040894672 = sum of:
    0.040894672 = product of:
      0.081789345 = sum of:
        0.081789345 = weight(_text_:22 in 5629) [ClassicSimilarity], result of:
          0.081789345 = score(doc=5629,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.46428138 = fieldWeight in 5629, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=5629)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    B.I.T.online. 22(2019) H.2, S.163-166
  10. Biebricher, N.; Fuhr, N.; Lustig, G.; Schwantner, M.; Knorz, G.: ¬The automatic indexing system AIR/PHYS : from research to application (1988) 0.02 
    0.017039448 = product of:
  0.034078896 = sum of:
    0.034078896 = product of:
      0.06815779 = sum of:
        0.06815779 = weight(_text_:22 in 1952) [ClassicSimilarity], result of:
          0.06815779 = score(doc=1952,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.38690117 = fieldWeight in 1952, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=1952)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    16. 8.1998 12:51:22
  11. Kutschekmanesch, S.; Lutes, B.; Moelle, K.; Thiel, U.; Tzeras, K.: Automated multilingual indexing : a synthesis of rule-based and thesaurus-based methods (1998) 0.02 
    0.017039448 = product of:
  0.034078896 = sum of:
    0.034078896 = product of:
      0.06815779 = sum of:
        0.06815779 = weight(_text_:22 in 4157) [ClassicSimilarity], result of:
          0.06815779 = score(doc=4157,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.38690117 = fieldWeight in 4157, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=4157)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information und Märkte: 50. Deutscher Dokumentartag 1998, Kongreß der Deutschen Gesellschaft für Dokumentation e.V. (DGD), Rheinische Friedrich-Wilhelms-Universität Bonn, 22.-24. September 1998. Hrsg. von Marlies Ockenfeld u. Gerhard J. Mantwill
  12. Tsareva, P.V.: Algoritmy dlya raspoznavaniya pozitivnykh i negativnykh vkhozdenii deskriptorov v tekst i protsedura avtomaticheskoi klassifikatsii tekstov (1999) 0.02 
    0.017039448 = product of:
  0.034078896 = sum of:
    0.034078896 = product of:
      0.06815779 = sum of:
        0.06815779 = weight(_text_:22 in 374) [ClassicSimilarity], result of:
          0.06815779 = score(doc=374,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.38690117 = fieldWeight in 374, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=374)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 4.2002 10:22:41
  13. Stankovic, R. et al.: Indexing of textual databases based on lexical resources : a case study for Serbian (2016) 0.02 
    0.017039448 = product of:
  0.034078896 = sum of:
    0.034078896 = product of:
      0.06815779 = sum of:
        0.06815779 = weight(_text_:22 in 2759) [ClassicSimilarity], result of:
          0.06815779 = score(doc=2759,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.38690117 = fieldWeight in 2759, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=2759)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 2.2016 18:25:22
  14. Tsujii, J.-I.: Automatic acquisition of semantic collocation from corpora (1995) 0.01 
    0.013631558 = product of:
  0.027263116 = sum of:
    0.027263116 = product of:
      0.054526232 = sum of:
        0.054526232 = weight(_text_:22 in 4709) [ClassicSimilarity], result of:
          0.054526232 = score(doc=4709,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.30952093 = fieldWeight in 4709, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=4709)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    31. 7.1996 9:22:19
  15. Riloff, E.: ¬An empirical study of automated dictionary construction for information extraction in three domains (1996) 0.01 
    0.013631558 = product of:
  0.027263116 = sum of:
    0.027263116 = product of:
      0.054526232 = sum of:
        0.054526232 = weight(_text_:22 in 6752) [ClassicSimilarity], result of:
          0.054526232 = score(doc=6752,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.30952093 = fieldWeight in 6752, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=6752)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    6. 3.1997 16:22:15
  16. Lepsky, K.; Vorhauer, J.: Lingo - ein open source System für die Automatische Indexierung deutschsprachiger Dokumente (2006) 0.01 
    0.013631558 = product of:
  0.027263116 = sum of:
    0.027263116 = product of:
      0.054526232 = sum of:
        0.054526232 = weight(_text_:22 in 3581) [ClassicSimilarity], result of:
          0.054526232 = score(doc=3581,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.30952093 = fieldWeight in 3581, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=3581)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    24. 3.2006 12:22:02
  17. Probst, M.; Mittelbach, J.: Maschinelle Indexierung in der Sacherschließung wissenschaftlicher Bibliotheken (2006) 0.01 
    0.013631558 = product of:
  0.027263116 = sum of:
    0.027263116 = product of:
      0.054526232 = sum of:
        0.054526232 = weight(_text_:22 in 1755) [ClassicSimilarity], result of:
          0.054526232 = score(doc=1755,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.30952093 = fieldWeight in 1755, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=1755)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2008 12:35:19
  18. Glaesener, L.: Automatisches Indexieren einer informationswissenschaftlichen Datenbank mit Mehrwortgruppen (2012) 0.01 
    0.013631558 = product of:
  0.027263116 = sum of:
    0.027263116 = product of:
      0.054526232 = sum of:
        0.054526232 = weight(_text_:22 in 401) [ClassicSimilarity], result of:
          0.054526232 = score(doc=401,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.30952093 = fieldWeight in 401, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=401)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    11. 9.2012 19:43:22
  19. Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.01 
    0.011927613 = product of:
  0.023855226 = sum of:
    0.023855226 = product of:
      0.047710452 = sum of:
        0.047710452 = weight(_text_:22 in 5001) [ClassicSimilarity], result of:
          0.047710452 = score(doc=5001,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.2708308 = fieldWeight in 5001, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5001)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    14. 3.1996 13:22:21
  20. Bordoni, L.; Pazienza, M.T.: Documents automatic indexing in an environmental domain (1997) 0.01 
    0.011927613 = product of:
  0.023855226 = sum of:
    0.023855226 = product of:
      0.047710452 = sum of:
        0.047710452 = weight(_text_:22 in 530) [ClassicSimilarity], result of:
          0.047710452 = score(doc=530,freq=2.0), product of:
            0.17616332 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.050306078 = queryNorm
            0.2708308 = fieldWeight in 530, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=530)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    International forum on information and documentation. 22(1997) no.1, S.17-28

Authors

Years

Languages

Types

  • a 32
  • x 2
  • el 1
  • m 1
  • More… Less…

Themes