Search (32 results, page 1 of 2)

  • × theme_ss:"Retrievalalgorithmen"
  1. Maylein, L.; Langenstein, A.: Neues vom Relevanz-Ranking im HEIDI-Katalog der Universitätsbibliothek Heidelberg : Perspektiven für bibliothekarische Dienstleistungen (2013) 0.06 
    0.06409513 = product of:
  0.12819026 = sum of:
    0.12819026 = product of:
      0.25638053 = sum of:
        0.25638053 = weight(_text_:katalog in 775) [ClassicSimilarity], result of:
          0.25638053 = score(doc=775,freq=6.0), product of:
            0.29104015 = queryWeight, product of:
              5.754088 = idf(docFreq=380, maxDocs=44218)
              0.05057972 = queryNorm
            0.88091123 = fieldWeight in 775, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              5.754088 = idf(docFreq=380, maxDocs=44218)
              0.0625 = fieldNorm(doc=775)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Das Relevanz-Ranking im Katalog der Universitätsbibliothek Heidelberg HEIDI, bereits 2009 in einem Beitrag in dieser Zeitschrift beschrieben, wurde in den letzten Jahren durch neue Entwicklungen und Methoden stark verbessert. Der Aufsatz beschreibt die Realisierung der bisherigen Rankingmaßnahmen unter der neu eingesetzten Suchmaschinenplattform SOLR. Weiter werden verschiedene neue Möglichkeiten für Rankinganpassungen unter SOLR sowie deren Einsatz im HEIDI-Katalog dargestellt.
  2. Lanvent, A.: Praxis - Windows-Suche und Indexdienst : Auch Windows kann bei der Suche den Turbo einlegen: mit dem Indexdienst (2004) 0.03 
    0.03270841 = product of:
  0.06541682 = sum of:
    0.06541682 = product of:
      0.13083364 = sum of:
        0.13083364 = weight(_text_:katalog in 3316) [ClassicSimilarity], result of:
          0.13083364 = score(doc=3316,freq=4.0), product of:
            0.29104015 = queryWeight, product of:
              5.754088 = idf(docFreq=380, maxDocs=44218)
              0.05057972 = queryNorm
            0.4495381 = fieldWeight in 3316, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.754088 = idf(docFreq=380, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3316)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Content
    "Für eine 4-GByte-Festplatte mit mehreren Partitionen sucht Windows XP im Volltextmodus weit über zwei Stunden. Der Indexdienst verkürzt diese Recherchedauer drastisch um mehr als eine Stunde. Im Gegensatz zu den Indizes der kommerziellen Suchwerkzeuge erfasst der Windows-Indexdienst nur Text-, HTML- und OfficeDateien über entsprechend integrierte Dokumentfilter. Da er weder ZIP-Files noch PDFs erkennt und auch keine E-Mails scannt, ist er mit komplexen Anfragen schnell überfordert. Standardmäßig ist der Indexdienst zwar installiert, aber nicht aktiviert. Das erledigt der Anwender über Start/Arbeitsplatz und den Befehl Verwalten aus dem Kontextmenü. In der Computerverwaltung aktiviert der Benutzer den Eintrag Indexdienst und wählt Starten aus dem Kontextmenü. Die zu indizierenden Elemente verwaltet Windows über so genannte Kataloge, mit deren Hilfe der User bestimmt, welche Dateitypen aus welchen Ordnern indiziert werden sollen. Zwar kann der Anwender neben dem Katalog System weitere Kataloge einrichten. Ausreichend ist es aber in den meisten Fällen, dem Katalog System weitere Indizierungsordner über die Befehle Neu/Verzeichnis hinzuzufügen. Klickt der Benutzer dann einen der Indizierungsordner mit der rechten Maustaste an und wählt Alle Tasks/Erneut prüfen (Vollständig), beginnt der mitunter langwierige Indizierungsprozess. Über den Eigenschaften-Dialog lässt sich allerdings der Leistungsverbrauch drosseln. Eine inkrementelle Indizierung, bei der Windows nur neue Elemente im jeweiligen Verzeichnis unter die Lupe nimmt, erreicht der Nutzer über Alle Tasks/Erneut prüfen (inkrementell). Einschalten lässt sich der Indexdienst auch über die Eigenschaften eines Ordners und den Befehl Erweitert/ln-halt für schnelle Dateisuche indizieren. Auskunft über die dem Indexdienst zugeordneten Ordner und Laufwerke erhalten Sie, wenn Sie die WindowsSuche starten und Weitere Optionen/ Andere Suchoptionen/Bevorzugte Einstellungen ändern/Indexdienst verwenden anklicken."
  3. Mayr, P.: Bradfordizing mit Katalogdaten : Alternative Sicht auf Suchergebnisse und Publikationsquellen durch Re-Ranking (2010) 0.03 
    0.027754009 = product of:
  0.055508018 = sum of:
    0.055508018 = product of:
      0.111016035 = sum of:
        0.111016035 = weight(_text_:katalog in 4301) [ClassicSimilarity], result of:
          0.111016035 = score(doc=4301,freq=2.0), product of:
            0.29104015 = queryWeight, product of:
              5.754088 = idf(docFreq=380, maxDocs=44218)
              0.05057972 = queryNorm
            0.38144577 = fieldWeight in 4301, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.754088 = idf(docFreq=380, maxDocs=44218)
              0.046875 = fieldNorm(doc=4301)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Series
    Lesesaal: Der Katalog der Zukunft
  4. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.03 
    0.027411416 = product of:
  0.054822832 = sum of:
    0.054822832 = product of:
      0.109645665 = sum of:
        0.109645665 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
          0.109645665 = score(doc=402,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = 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
  5. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
    0.02398499 = product of:
  0.04796998 = sum of:
    0.04796998 = product of:
      0.09593996 = sum of:
        0.09593996 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.09593996 = score(doc=2134,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.5416616 = fieldWeight in 2134, 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=2134)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    30. 3.2001 13:32:22
  6. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02 
    0.02398499 = product of:
  0.04796998 = sum of:
    0.04796998 = product of:
      0.09593996 = sum of:
        0.09593996 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
          0.09593996 = score(doc=3445,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.5416616 = fieldWeight in 3445, 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=3445)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    25. 8.2005 17:42:22
  7. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.02 
    0.02055856 = product of:
  0.04111712 = sum of:
    0.04111712 = product of:
      0.08223424 = sum of:
        0.08223424 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
          0.08223424 = score(doc=58,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = 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
  8. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.02 
    0.02055856 = product of:
  0.04111712 = sum of:
    0.04111712 = product of:
      0.08223424 = sum of:
        0.08223424 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
          0.08223424 = score(doc=2051,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = 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. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01 
    0.013705708 = product of:
  0.027411416 = sum of:
    0.027411416 = product of:
      0.054822832 = sum of:
        0.054822832 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
          0.054822832 = score(doc=5108,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.30952093 = fieldWeight in 5108, 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=5108)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 1.2007 18:30:22
  10. Faloutsos, C.: Signature files (1992) 0.01 
    0.013705708 = product of:
  0.027411416 = sum of:
    0.027411416 = product of:
      0.054822832 = sum of:
        0.054822832 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
          0.054822832 = score(doc=3499,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.30952093 = fieldWeight in 3499, 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=3499)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    7. 5.1999 15:22:48
  11. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01 
    0.013705708 = product of:
  0.027411416 = sum of:
    0.027411416 = product of:
      0.054822832 = sum of:
        0.054822832 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
          0.054822832 = score(doc=1422,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.30952093 = fieldWeight in 1422, 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=1422)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:27:23
  12. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01 
    0.013705708 = product of:
  0.027411416 = sum of:
    0.027411416 = product of:
      0.054822832 = sum of:
        0.054822832 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
          0.054822832 = score(doc=1431,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.30952093 = fieldWeight in 1431, 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=1431)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 8.2014 17:05:18
  13. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.01 
    0.013705708 = product of:
  0.027411416 = sum of:
    0.027411416 = product of:
      0.054822832 = sum of:
        0.054822832 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
          0.054822832 = score(doc=1484,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.30952093 = fieldWeight in 1484, 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=1484)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    13. 9.2014 14:45:22
  14. Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015) 0.01 
    0.012114248 = product of:
  0.024228496 = sum of:
    0.024228496 = product of:
      0.048456993 = sum of:
        0.048456993 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
          0.048456993 = score(doc=2591,freq=4.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.27358043 = fieldWeight in 2591, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2591)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22
    18. 9.2018 18:22:56
  15. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01 
    0.011992495 = product of:
  0.02398499 = sum of:
    0.02398499 = product of:
      0.04796998 = sum of:
        0.04796998 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
          0.04796998 = score(doc=1319,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.2708308 = fieldWeight in 1319, 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=1319)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 8.1996 22:08:06
  16. Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01 
    0.011992495 = product of:
  0.02398499 = sum of:
    0.02398499 = product of:
      0.04796998 = sum of:
        0.04796998 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
          0.04796998 = score(doc=3276,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.2708308 = fieldWeight in 3276, 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=3276)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 3.2005 16:23:22
  17. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01 
    0.01027928 = product of:
  0.02055856 = sum of:
    0.02055856 = product of:
      0.04111712 = sum of:
        0.04111712 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
          0.04111712 = score(doc=5123,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.23214069 = fieldWeight in 5123, 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=5123)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    12. 9.1996 13:56:22
  18. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01 
    0.01027928 = product of:
  0.02055856 = sum of:
    0.02055856 = product of:
      0.04111712 = sum of:
        0.04111712 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
          0.04111712 = score(doc=6973,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.23214069 = fieldWeight in 6973, 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=6973)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
  19. Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003) 0.01 
    0.01027928 = product of:
  0.02055856 = sum of:
    0.02055856 = product of:
      0.04111712 = sum of:
        0.04111712 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
          0.04111712 = score(doc=1451,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.23214069 = fieldWeight in 1451, 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=1451)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:27:36
  20. Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.01 
    0.01027928 = product of:
  0.02055856 = sum of:
    0.02055856 = product of:
      0.04111712 = sum of:
        0.04111712 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
          0.04111712 = score(doc=2239,freq=2.0), product of:
            0.17712156 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05057972 = queryNorm
            0.23214069 = fieldWeight in 2239, 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=2239)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    31. 5.2004 19:22:06

Authors

Years

Languages

  • e 25
  • d 7

Types

  • a 30
  • m 1
  • r 1
  • More… Less…

Themes

Subjects

Classifications