Search (30 results, page 1 of 2)

  • × theme_ss:"Retrievalalgorithmen"
  1. Lanvent, A.: Licht im Daten Chaos (2004) 0.05
    0.052385665 = product of:
      0.10477133 = sum of:
        0.10477133 = product of:
          0.20954266 = sum of:
            0.20954266 = weight(_text_:desktop in 2806) [ClassicSimilarity], result of:
              0.20954266 = score(doc=2806,freq=8.0), product of:
                0.34311315 = queryWeight, product of:
                  6.9093957 = idf(docFreq=119, maxDocs=44218)
                  0.049658924 = queryNorm
                0.6107101 = fieldWeight in 2806, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  6.9093957 = idf(docFreq=119, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2806)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Spätestens bei der Suche nach E-Mails, PDF-Dokumenten oder Bildern mit Texten kapituliert die Windows-Suche. Vier von neun Desktop-Suchtools finden dagegen beinahe jede verborgene Datei.
    Content
    "Bitte suchen Sie alle Unterlagen, die im PC zum Ibelshäuser-Vertrag in Sprockhövel gespeichert sind. Finden Sie alles, was wir haben - Dokumente, Tabellen, Präsentationen, Scans, E-Mails. Und erledigen Sie das gleich! « Wer diese Aufgabe an das Windows-eigene Suchmodul vergibt, wird zwangsläufig enttäuscht. Denn das Betriebssystem beherrscht weder die formatübergreifende Recherche noch die Kontextsuche, die für solche komplexen Aufträge nötig sind. Professionelle Desktop-Suchmaschinen erledigen Aufgaben dieser Art jedoch im Handumdrehen - genauer gesagt in einer einzigen Sekunde. Spitzenprogramme wie Global Brain benötigen dafür nicht einmal umfangreiche Abfrageformulare. Es genügt, einen Satz im Eingabefeld zu formulieren, der das Thema der gewünschten Dokumente eingrenzt. Dabei suchen die Programme über alle Laufwerke, die sich auf dem System einbinden lassen - also auch im Netzwerk-Ordner (Shared Folder), sofern dieser freigegeben wurde. Allen Testkandidaten - mit Ausnahme von Search 32 - gemeinsam ist, dass sie weitaus bessere Rechercheergebnisse abliefern als Windows, deutlich schneller arbeiten und meist auch in den Online-Postfächern stöbern. Wer schon öfter vergeblich über die Windows-Suche nach wichtigen Dokumenten gefahndet hat, kommt angesichts der Qualität der Search-Engines kaum mehr um die Anschaffung eines Desktop-Suchtools herum. Aber Microsoft will nachbessern. Für den Windows-XP-Nachfolger Longhorn wirbt der Hersteller vor allem mit dem Hinweis auf das neue Dateisystem WinFS, das sämtliche Files auf der Festplatte über Meta-Tags indiziert und dem Anwender damit lange Suchläufe erspart. So sollen sich anders als bei Windows XP alle Dateien zu bestimmten Themen in wenigen Sekunden auflisten lassen - unabhängig vom Format und vom physikalischen Speicherort der Files. Für die Recherche selbst ist dann weder der Dateiname noch das Erstelldatum ausschlaggebend. Anhand der kontextsensitiven Suche von WinFS kann der Anwender einfach einen Suchbefehl wie »Vertragsabschluss mit Firma XYZ, Neunkirchen/Saar« eingeben, der dann ohne Umwege zum Ziel führt."
    Object
    Isys Desktop 6.03
  2. Voorhees, E.M.: Implementing agglomerative hierarchic clustering algorithms for use in document retrieval (1986) 0.03
    0.026912395 = product of:
      0.05382479 = sum of:
        0.05382479 = product of:
          0.10764958 = sum of:
            0.10764958 = weight(_text_:22 in 402) [ClassicSimilarity], result of:
              0.10764958 = score(doc=402,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  3. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02
    0.023548344 = product of:
      0.04709669 = sum of:
        0.04709669 = product of:
          0.09419338 = sum of:
            0.09419338 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.09419338 = score(doc=2134,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  4. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02
    0.023548344 = product of:
      0.04709669 = sum of:
        0.04709669 = product of:
          0.09419338 = sum of:
            0.09419338 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
              0.09419338 = score(doc=3445,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  5. Fuhr, N.: Ranking-Experimente mit gewichteter Indexierung (1986) 0.02
    0.020184295 = product of:
      0.04036859 = sum of:
        0.04036859 = product of:
          0.08073718 = sum of:
            0.08073718 = weight(_text_:22 in 58) [ClassicSimilarity], result of:
              0.08073718 = score(doc=58,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  6. Fuhr, N.: Rankingexperimente mit gewichteter Indexierung (1986) 0.02
    0.020184295 = product of:
      0.04036859 = sum of:
        0.04036859 = product of:
          0.08073718 = sum of:
            0.08073718 = weight(_text_:22 in 2051) [ClassicSimilarity], result of:
              0.08073718 = score(doc=2051,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  7. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01
    0.013456197 = product of:
      0.026912395 = sum of:
        0.026912395 = product of:
          0.05382479 = sum of:
            0.05382479 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
              0.05382479 = score(doc=5108,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  8. Faloutsos, C.: Signature files (1992) 0.01
    0.013456197 = product of:
      0.026912395 = sum of:
        0.026912395 = product of:
          0.05382479 = sum of:
            0.05382479 = weight(_text_:22 in 3499) [ClassicSimilarity], result of:
              0.05382479 = score(doc=3499,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  9. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01
    0.013456197 = product of:
      0.026912395 = sum of:
        0.026912395 = product of:
          0.05382479 = sum of:
            0.05382479 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
              0.05382479 = score(doc=1422,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  10. Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014) 0.01
    0.013456197 = product of:
      0.026912395 = sum of:
        0.026912395 = product of:
          0.05382479 = sum of:
            0.05382479 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
              0.05382479 = score(doc=1431,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  11. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.01
    0.013456197 = product of:
      0.026912395 = sum of:
        0.026912395 = product of:
          0.05382479 = sum of:
            0.05382479 = weight(_text_:22 in 1484) [ClassicSimilarity], result of:
              0.05382479 = score(doc=1484,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  12. Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015) 0.01
    0.01189371 = product of:
      0.02378742 = sum of:
        0.02378742 = product of:
          0.04757484 = sum of:
            0.04757484 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
              0.04757484 = score(doc=2591,freq=4.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  13. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01
    0.011774172 = product of:
      0.023548344 = sum of:
        0.023548344 = product of:
          0.04709669 = sum of:
            0.04709669 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
              0.04709669 = score(doc=1319,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  14. Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01
    0.011774172 = product of:
      0.023548344 = sum of:
        0.023548344 = product of:
          0.04709669 = sum of:
            0.04709669 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
              0.04709669 = score(doc=3276,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  15. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01
    0.010092148 = product of:
      0.020184295 = sum of:
        0.020184295 = product of:
          0.04036859 = sum of:
            0.04036859 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
              0.04036859 = score(doc=5123,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  16. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01
    0.010092148 = product of:
      0.020184295 = sum of:
        0.020184295 = product of:
          0.04036859 = sum of:
            0.04036859 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
              0.04036859 = score(doc=6973,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  17. 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
    0.010092148 = product of:
      0.020184295 = sum of:
        0.020184295 = product of:
          0.04036859 = sum of:
            0.04036859 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
              0.04036859 = score(doc=1451,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  18. 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
    0.010092148 = product of:
      0.020184295 = sum of:
        0.020184295 = product of:
          0.04036859 = sum of:
            0.04036859 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
              0.04036859 = score(doc=2239,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = 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
  19. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.01
    0.010092148 = product of:
      0.020184295 = sum of:
        0.020184295 = product of:
          0.04036859 = sum of:
            0.04036859 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
              0.04036859 = score(doc=2717,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = queryNorm
                0.23214069 = fieldWeight in 2717, 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=2717)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    11. 9.2004 17:32:22
  20. Witschel, H.F.: Global term weights in distributed environments (2008) 0.01
    0.010092148 = product of:
      0.020184295 = sum of:
        0.020184295 = product of:
          0.04036859 = sum of:
            0.04036859 = weight(_text_:22 in 2096) [ClassicSimilarity], result of:
              0.04036859 = score(doc=2096,freq=2.0), product of:
                0.17389709 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049658924 = queryNorm
                0.23214069 = fieldWeight in 2096, 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=2096)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    1. 8.2008 9:44:22