-
Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984)
0.04
0.04230785 = product of:
0.0846157 = sum of:
0.0846157 = product of:
0.12692355 = sum of:
0.04249641 = weight(_text_:h in 262) [ClassicSimilarity], result of:
0.04249641 = score(doc=262,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.38429362 = fieldWeight in 262, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.109375 = fieldNorm(doc=262)
0.08442714 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
0.08442714 = score(doc=262,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 20.10.2000 12:22:23
- Source
- Deutscher Dokumentartag 1983, Göttingen, 3.-7.10.1983: Fachinformation und Bildschirmtext. Bearb.: H. Strohl-Goebel
-
Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986)
0.04
0.036263872 = product of:
0.072527744 = sum of:
0.072527744 = product of:
0.10879161 = sum of:
0.036425494 = weight(_text_:h in 58) [ClassicSimilarity], result of:
0.036425494 = score(doc=58,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.32939452 = fieldWeight in 58, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.09375 = fieldNorm(doc=58)
0.07236612 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
0.07236612 = score(doc=58,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 14. 6.2015 22:12:44
- Source
- Deutscher Dokumentartag 1985, Nürnberg, 1.-4.10.1985: Fachinformation: Methodik - Management - Markt; neue Entwicklungen, Berufe, Produkte. Bearb.: H. Strohl-Goebel
-
Hauer, M.: Tiefenindexierung im Bibliothekskatalog : 17 Jahre intelligentCAPTURE (2019)
0.04
0.036263872 = product of:
0.072527744 = sum of:
0.072527744 = product of:
0.10879161 = sum of:
0.036425494 = weight(_text_:h in 5629) [ClassicSimilarity], result of:
0.036425494 = score(doc=5629,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.32939452 = fieldWeight in 5629, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.09375 = fieldNorm(doc=5629)
0.07236612 = weight(_text_:22 in 5629) [ClassicSimilarity], result of:
0.07236612 = score(doc=5629,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- B.I.T.online. 22(2019) H.2, S.163-166
-
Lepsky, K.; Vorhauer, J.: Lingo - ein open source System für die Automatische Indexierung deutschsprachiger Dokumente (2006)
0.02
0.024175912 = product of:
0.048351824 = sum of:
0.048351824 = product of:
0.07252774 = sum of:
0.024283662 = weight(_text_:h in 3581) [ClassicSimilarity], result of:
0.024283662 = score(doc=3581,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.21959636 = fieldWeight in 3581, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0625 = fieldNorm(doc=3581)
0.048244078 = weight(_text_:22 in 3581) [ClassicSimilarity], result of:
0.048244078 = score(doc=3581,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 24. 3.2006 12:22:02
- Source
- ABI-Technik. 26(2006) H.1, S.18-28
-
Probst, M.; Mittelbach, J.: Maschinelle Indexierung in der Sacherschließung wissenschaftlicher Bibliotheken (2006)
0.02
0.024175912 = product of:
0.048351824 = sum of:
0.048351824 = product of:
0.07252774 = sum of:
0.024283662 = weight(_text_:h in 1755) [ClassicSimilarity], result of:
0.024283662 = score(doc=1755,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.21959636 = fieldWeight in 1755, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0625 = fieldNorm(doc=1755)
0.048244078 = weight(_text_:22 in 1755) [ClassicSimilarity], result of:
0.048244078 = score(doc=1755,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 22. 3.2008 12:35:19
- Source
- Bibliothek: Forschung und Praxis. 30(2006) H.2, S.168-176
-
Renz, M.: Automatische Inhaltserschließung im Zeichen von Wissensmanagement (2001)
0.02
0.021153925 = product of:
0.04230785 = sum of:
0.04230785 = product of:
0.06346177 = sum of:
0.021248205 = weight(_text_:h in 5671) [ClassicSimilarity], result of:
0.021248205 = score(doc=5671,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.19214681 = fieldWeight in 5671, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0546875 = fieldNorm(doc=5671)
0.04221357 = weight(_text_:22 in 5671) [ClassicSimilarity], result of:
0.04221357 = score(doc=5671,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = queryNorm
0.2708308 = fieldWeight in 5671, 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=5671)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 22. 3.2001 13:14:48
- Source
- nfd Information - Wissenschaft und Praxis. 52(2001) H.2, S.69-78
-
Kasprzik, A.: Voraussetzungen und Anwendungspotentiale einer präzisen Sacherschließung aus Sicht der Wissenschaft (2018)
0.02
0.021153925 = product of:
0.04230785 = sum of:
0.04230785 = product of:
0.06346177 = sum of:
0.021248205 = weight(_text_:h in 5195) [ClassicSimilarity], result of:
0.021248205 = score(doc=5195,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.19214681 = fieldWeight in 5195, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0546875 = fieldNorm(doc=5195)
0.04221357 = weight(_text_:22 in 5195) [ClassicSimilarity], result of:
0.04221357 = score(doc=5195,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = queryNorm
0.2708308 = fieldWeight in 5195, 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=5195)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Abstract
- Große Aufmerksamkeit richtet sich im Moment auf das Potential von automatisierten Methoden in der Sacherschließung und deren Interaktionsmöglichkeiten mit intellektuellen Methoden. In diesem Kontext befasst sich der vorliegende Beitrag mit den folgenden Fragen: Was sind die Anforderungen an bibliothekarische Metadaten aus Sicht der Wissenschaft? Was wird gebraucht, um den Informationsbedarf der Fachcommunities zu bedienen? Und was bedeutet das entsprechend für die Automatisierung der Metadatenerstellung und -pflege? Dieser Beitrag fasst die von der Autorin eingenommene Position in einem Impulsvortrag und der Podiumsdiskussion beim Workshop der FAG "Erschließung und Informationsvermittlung" des GBV zusammen. Der Workshop fand im Rahmen der 22. Verbundkonferenz des GBV statt.
- Source
- ABI-Technik. 38(2018) H.4, S.332-335
-
Franke-Maier, M.: Anforderungen an die Qualität der Inhaltserschließung im Spannungsfeld von intellektuell und automatisch erzeugten Metadaten (2018)
0.02
0.021153925 = product of:
0.04230785 = sum of:
0.04230785 = product of:
0.06346177 = sum of:
0.021248205 = weight(_text_:h in 5344) [ClassicSimilarity], result of:
0.021248205 = score(doc=5344,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.19214681 = fieldWeight in 5344, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.0546875 = fieldNorm(doc=5344)
0.04221357 = weight(_text_:22 in 5344) [ClassicSimilarity], result of:
0.04221357 = score(doc=5344,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = queryNorm
0.2708308 = fieldWeight in 5344, 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=5344)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Abstract
- Spätestens seit dem Deutschen Bibliothekartag 2018 hat sich die Diskussion zu den automatischen Verfahren der Inhaltserschließung der Deutschen Nationalbibliothek von einer politisch geführten Diskussion in eine Qualitätsdiskussion verwandelt. Der folgende Beitrag beschäftigt sich mit Fragen der Qualität von Inhaltserschließung in digitalen Zeiten, wo heterogene Erzeugnisse unterschiedlicher Verfahren aufeinandertreffen und versucht, wichtige Anforderungen an Qualität zu definieren. Dieser Tagungsbeitrag fasst die vom Autor als Impulse vorgetragenen Ideen beim Workshop der FAG "Erschließung und Informationsvermittlung" des GBV am 29. August 2018 in Kiel zusammen. Der Workshop fand im Rahmen der 22. Verbundkonferenz des GBV statt.
- Source
- ABI-Technik. 38(2018) H.4, S.327-331
-
Li, Z.: Research on dynamic morphological indexing (1998)
0.02
0.018678762 = product of:
0.037357524 = sum of:
0.037357524 = product of:
0.11207257 = sum of:
0.11207257 = weight(_text_:z in 3242) [ClassicSimilarity], result of:
0.11207257 = score(doc=3242,freq=2.0), product of:
0.23756456 = queryWeight, product of:
5.337313 = idf(docFreq=577, maxDocs=44218)
0.04451014 = queryNorm
0.47175628 = fieldWeight in 3242, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.337313 = idf(docFreq=577, maxDocs=44218)
0.0625 = fieldNorm(doc=3242)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Busch, D.: Domänenspezifische hybride automatische Indexierung von bibliographischen Metadaten (2019)
0.02
0.018131936 = product of:
0.036263872 = sum of:
0.036263872 = product of:
0.054395806 = sum of:
0.018212747 = weight(_text_:h in 5628) [ClassicSimilarity], result of:
0.018212747 = score(doc=5628,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.16469726 = fieldWeight in 5628, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.046875 = fieldNorm(doc=5628)
0.03618306 = weight(_text_:22 in 5628) [ClassicSimilarity], result of:
0.03618306 = score(doc=5628,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = queryNorm
0.23214069 = fieldWeight in 5628, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5628)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- B.I.T.online. 22(2019) H.6, S.465-469
-
Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986)
0.02
0.01608136 = product of:
0.03216272 = sum of:
0.03216272 = product of:
0.096488155 = sum of:
0.096488155 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
0.096488155 = score(doc=402,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Information processing and management. 22(1986) no.6, S.465-476
-
Hlava, M.M.K.: Automatic indexing : comparing rule-based and statistics-based indexing systems (2005)
0.01
0.014071191 = product of:
0.028142381 = sum of:
0.028142381 = product of:
0.08442714 = sum of:
0.08442714 = weight(_text_:22 in 6265) [ClassicSimilarity], result of:
0.08442714 = score(doc=6265,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Information outlook. 9(2005) no.8, S.22-23
-
Advances in intelligent retrieval: Proc. of a conference ... Wadham College, Oxford, 16.-17.4.1985 (1986)
0.01
0.014009072 = product of:
0.028018145 = sum of:
0.028018145 = product of:
0.08405443 = sum of:
0.08405443 = weight(_text_:z in 1384) [ClassicSimilarity], result of:
0.08405443 = score(doc=1384,freq=2.0), product of:
0.23756456 = queryWeight, product of:
5.337313 = idf(docFreq=577, maxDocs=44218)
0.04451014 = queryNorm
0.35381722 = fieldWeight in 1384, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.337313 = idf(docFreq=577, maxDocs=44218)
0.046875 = fieldNorm(doc=1384)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Content
- Enthält die Beiträge: ADDIS, T.: Extended relational analysis: a design approach to knowledge-based systems; PARKINSON, D.: Supercomputers and non-numeric processing; McGREGOR, D.R. u. J.R. MALONE: An architectural approach to advances in information retrieval; ALLEN, M.J. u. O.S. HARRISON: Word processing and information retrieval: some practical problems; MURTAGH, F.: Clustering and nearest neighborhood searching; ENSER, P.G.B.: Experimenting with the automatic classification of books; TESKEY, N. u. Z. RAZAK: An analysis of ranking for free text retrieval systems; ZARRI, G.P.: Interactive information retrieval: an artificial intelligence approach to deal with biographical data; HANCOX, P. u. F. SMITH: A case system processor for the PRECIS indexing language; ROUAULT, J.: Linguistic methods in information retrieval systems; ARAGON-RAMIREZ, V. u. C.D. PAICE: Design of a system for the online elucidation of natural language search statements; BROOKS, H.M., P.J. DANIELS u. N.J. BELKIN: Problem descriptions and user models: developing an intelligent interface for document retrieval systems; BLACK, W.J., P. HARGREAVES u. P.B. MAYES: HEADS: a cataloguing advisory system; BELL, D.A.: An architecture for integrating data, knowledge, and information bases
-
Nohr, H.: Grundlagen der automatischen Indexierung : ein Lehrbuch (2003)
0.01
0.013764394 = product of:
0.027528789 = sum of:
0.027528789 = product of:
0.04129318 = sum of:
0.017171143 = weight(_text_:h in 1767) [ClassicSimilarity], result of:
0.017171143 = score(doc=1767,freq=4.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.15527807 = fieldWeight in 1767, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.03125 = fieldNorm(doc=1767)
0.024122039 = weight(_text_:22 in 1767) [ClassicSimilarity], result of:
0.024122039 = score(doc=1767,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = queryNorm
0.15476047 = fieldWeight in 1767, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=1767)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- 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.
-
Martins, A.L.; Souza, R.R.; Ribeiro de Mello, H.: ¬The use of noun phrases in information retrieval : proposing a mechanism for automatic classification (2014)
0.01
0.012087956 = product of:
0.024175912 = sum of:
0.024175912 = product of:
0.03626387 = sum of:
0.012141831 = weight(_text_:h in 1441) [ClassicSimilarity], result of:
0.012141831 = score(doc=1441,freq=2.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.10979818 = fieldWeight in 1441, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.03125 = fieldNorm(doc=1441)
0.024122039 = weight(_text_:22 in 1441) [ClassicSimilarity], result of:
0.024122039 = score(doc=1441,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = queryNorm
0.15476047 = fieldWeight in 1441, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=1441)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
-
Hauer, M.: Automatische Indexierung (2000)
0.01
0.01206102 = product of:
0.02412204 = sum of:
0.02412204 = product of:
0.07236612 = sum of:
0.07236612 = weight(_text_:22 in 5887) [ClassicSimilarity], result of:
0.07236612 = score(doc=5887,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.33333334 = coord(1/3)
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
-
Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986)
0.01
0.01206102 = product of:
0.02412204 = sum of:
0.02412204 = product of:
0.07236612 = sum of:
0.07236612 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
0.07236612 = score(doc=2051,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 14. 6.2015 22:12:56
-
Chung, Y.M.; Lee, J.Y.: ¬A corpus-based approach to comparative evaluation of statistical term association measures (2001)
0.01
0.011674227 = product of:
0.023348454 = sum of:
0.023348454 = product of:
0.07004536 = sum of:
0.07004536 = weight(_text_:z in 5769) [ClassicSimilarity], result of:
0.07004536 = score(doc=5769,freq=2.0), product of:
0.23756456 = queryWeight, product of:
5.337313 = idf(docFreq=577, maxDocs=44218)
0.04451014 = queryNorm
0.29484767 = fieldWeight in 5769, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.337313 = idf(docFreq=577, maxDocs=44218)
0.0390625 = fieldNorm(doc=5769)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- Statistical association measures have been widely applied in information retrieval research, usually employing a clustering of documents or terms on the basis of their relationships. Applications of the association measures for term clustering include automatic thesaurus construction and query expansion. This research evaluates the similarity of six association measures by comparing the relationship and behavior they demonstrate in various analyses of a test corpus. Analysis techniques include comparisons of highly ranked term pairs and term clusters, analyses of the correlation among the association measures using Pearson's correlation coefficient and MDS mapping, and an analysis of the impact of a term frequency on the association values by means of z-score. The major findings of the study are as follows: First, the most similar association measures are mutual information and Yule's coefficient of colligation Y, whereas cosine and Jaccard coefficients, as well as X**2 statistic and likelihood ratio, demonstrate quite similar behavior for terms with high frequency. Second, among all the measures, the X**2 statistic is the least affected by the frequency of terms. Third, although cosine and Jaccard coefficients tend to emphasize high frequency terms, mutual information and Yule's Y seem to overestimate rare terms
-
Lepsky, K.: Maschinelle Indexierung von Titelaufnahmen zur Verbesserung der sachlichen Erschließung in Online-Publikumskatalogen (1994)
0.01
0.010118194 = product of:
0.020236388 = sum of:
0.020236388 = product of:
0.06070916 = sum of:
0.06070916 = weight(_text_:h in 7064) [ClassicSimilarity], result of:
0.06070916 = score(doc=7064,freq=8.0), product of:
0.11058318 = queryWeight, product of:
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.04451014 = queryNorm
0.5489909 = fieldWeight in 7064, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
2.4844491 = idf(docFreq=10020, maxDocs=44218)
0.078125 = fieldNorm(doc=7064)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Footnote
- [Hausarbeit für den höheren Bibliotheksdienst 1993]. - Rez. in: Mitteilungsblatt VdB NW N.F. 45(1995) H.1, S.98-100 (H. Nohr); Knowledge organization 23(1996) no.1, S.50-52 (H. Schnelling)
- Series
- Kölner Arbeiten zum Bibliotheks- und Dokumentationswesen; H.18
-
Biebricher, N.; Fuhr, N.; Lustig, G.; Schwantner, M.; Knorz, G.: ¬The automatic indexing system AIR/PHYS : from research to application (1988)
0.01
0.01005085 = product of:
0.0201017 = sum of:
0.0201017 = product of:
0.0603051 = sum of:
0.0603051 = weight(_text_:22 in 1952) [ClassicSimilarity], result of:
0.0603051 = score(doc=1952,freq=2.0), product of:
0.15586694 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04451014 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 16. 8.1998 12:51:22