Search (17 results, page 1 of 1)

  • × author_ss:"Lewandowski, D."
  1. Lewandowski, D.; Spree, U.: Ranking of Wikipedia articles in search engines revisited : fair ranking for reasonable quality? (2011) 0.02
    0.02109855 = product of:
      0.052746374 = sum of:
        0.017225713 = weight(_text_:17 in 444) [ClassicSimilarity], result of:
          0.017225713 = score(doc=444,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.13471568 = fieldWeight in 444, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0390625 = fieldNorm(doc=444)
        0.03552066 = weight(_text_:22 in 444) [ClassicSimilarity], result of:
          0.03552066 = score(doc=444,freq=2.0), product of:
            0.1836162 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052434362 = queryNorm
            0.19345059 = fieldWeight in 444, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=444)
      0.4 = coord(2/5)
    
    Date
    17. 2.1997 18:25:04
    30. 9.2012 19:27:22
  2. Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002) 0.01
    0.011366612 = product of:
      0.05683306 = sum of:
        0.05683306 = weight(_text_:22 in 997) [ClassicSimilarity], result of:
          0.05683306 = score(doc=997,freq=2.0), product of:
            0.1836162 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052434362 = queryNorm
            0.30952093 = fieldWeight in 997, 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=997)
      0.2 = coord(1/5)
    
    Date
    29. 9.2002 18:49:22
  3. Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004) 0.01
    0.011366612 = product of:
      0.05683306 = sum of:
        0.05683306 = weight(_text_:22 in 2314) [ClassicSimilarity], result of:
          0.05683306 = score(doc=2314,freq=2.0), product of:
            0.1836162 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052434362 = queryNorm
            0.30952093 = fieldWeight in 2314, 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=2314)
      0.2 = coord(1/5)
    
    Date
    28.11.2004 13:11:22
  4. Lewandowski, D.: Query understanding (2011) 0.01
    0.011366612 = product of:
      0.05683306 = sum of:
        0.05683306 = weight(_text_:22 in 344) [ClassicSimilarity], result of:
          0.05683306 = score(doc=344,freq=2.0), product of:
            0.1836162 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052434362 = queryNorm
            0.30952093 = fieldWeight in 344, 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=344)
      0.2 = coord(1/5)
    
    Date
    18. 9.2018 18:22:18
  5. Lewandowski, D.: ¬Die Macht der Suchmaschinen und ihr Einfluss auf unsere Entscheidungen (2014) 0.01
    0.008524959 = product of:
      0.042624794 = sum of:
        0.042624794 = weight(_text_:22 in 1491) [ClassicSimilarity], result of:
          0.042624794 = score(doc=1491,freq=2.0), product of:
            0.1836162 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052434362 = queryNorm
            0.23214069 = fieldWeight in 1491, 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=1491)
      0.2 = coord(1/5)
    
    Date
    22. 9.2014 18:54:11
  6. Lewandowski, D.; Sünkler, S.: What does Google recommend when you want to compare insurance offerings? (2019) 0.01
    0.0071041323 = product of:
      0.03552066 = sum of:
        0.03552066 = weight(_text_:22 in 5288) [ClassicSimilarity], result of:
          0.03552066 = score(doc=5288,freq=2.0), product of:
            0.1836162 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.052434362 = queryNorm
            0.19345059 = fieldWeight in 5288, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5288)
      0.2 = coord(1/5)
    
    Date
    20. 1.2015 18:30:22
  7. Lewandowski, D.: Informationsarmut : sowohl ein quantitatives als auch ein qualitatives Problem (1999) 0.01
    0.005512228 = product of:
      0.02756114 = sum of:
        0.02756114 = weight(_text_:17 in 3646) [ClassicSimilarity], result of:
          0.02756114 = score(doc=3646,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.21554507 = fieldWeight in 3646, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0625 = fieldNorm(doc=3646)
      0.2 = coord(1/5)
    
    Date
    23.10.1996 17:26:29
  8. Lewandowski, D.: Evaluierung von Suchmaschinen (2011) 0.01
    0.005512228 = product of:
      0.02756114 = sum of:
        0.02756114 = weight(_text_:17 in 349) [ClassicSimilarity], result of:
          0.02756114 = score(doc=349,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.21554507 = fieldWeight in 349, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0625 = fieldNorm(doc=349)
      0.2 = coord(1/5)
    
    Date
    17. 9.2018 18:20:47
  9. Lewandowski, D.; Kerkmann, F.; Rümmele, S.; Sünkler, S.: ¬An empirical investigation on search engine ad disclosure (2018) 0.00
    0.0048232 = product of:
      0.024115998 = sum of:
        0.024115998 = weight(_text_:17 in 4115) [ClassicSimilarity], result of:
          0.024115998 = score(doc=4115,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.18860194 = fieldWeight in 4115, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4115)
      0.2 = coord(1/5)
    
    Date
    17. 2.1997 18:25:04
  10. Sundin, O.; Lewandowski, D.; Haider, J.: Whose relevance? : Web search engines as multisided relevance machines (2022) 0.00
    0.0048232 = product of:
      0.024115998 = sum of:
        0.024115998 = weight(_text_:17 in 542) [ClassicSimilarity], result of:
          0.024115998 = score(doc=542,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.18860194 = fieldWeight in 542, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0546875 = fieldNorm(doc=542)
      0.2 = coord(1/5)
    
    Date
    17. 2.1997 18:25:04
  11. Lewandowski, D.: Mit welchen Kennzahlen lässt sich die Qualität von Suchmaschinen messen? (2007) 0.00
    0.004134171 = product of:
      0.020670855 = sum of:
        0.020670855 = weight(_text_:17 in 378) [ClassicSimilarity], result of:
          0.020670855 = score(doc=378,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.16165881 = fieldWeight in 378, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.046875 = fieldNorm(doc=378)
      0.2 = coord(1/5)
    
    Date
    7. 6.2007 14:20:17
  12. Lewandowski, D.: ¬A framework for evaluating the retrieval effectiveness of search engines (2012) 0.00
    0.004134171 = product of:
      0.020670855 = sum of:
        0.020670855 = weight(_text_:17 in 106) [ClassicSimilarity], result of:
          0.020670855 = score(doc=106,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.16165881 = fieldWeight in 106, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.046875 = fieldNorm(doc=106)
      0.2 = coord(1/5)
    
    Date
    17. 4.2012 12:45:15
  13. Lewandowski, D.: Evaluating the retrieval effectiveness of web search engines using a representative query sample (2015) 0.00
    0.004134171 = product of:
      0.020670855 = sum of:
        0.020670855 = weight(_text_:17 in 2157) [ClassicSimilarity], result of:
          0.020670855 = score(doc=2157,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.16165881 = fieldWeight in 2157, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.046875 = fieldNorm(doc=2157)
      0.2 = coord(1/5)
    
    Date
    17. 2.1997 18:25:04
  14. Lewandowski, D.: ¬The retrieval effectiveness of web search engines : considering results descriptions (2008) 0.00
    0.0034451426 = product of:
      0.017225713 = sum of:
        0.017225713 = weight(_text_:17 in 2345) [ClassicSimilarity], result of:
          0.017225713 = score(doc=2345,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.13471568 = fieldWeight in 2345, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2345)
      0.2 = coord(1/5)
    
    Date
    7.11.2008 15:17:34
  15. Lewandowski, D.; Mayr, P.: Exploring the academic invisible Web (2006) 0.00
    0.0034451426 = product of:
      0.017225713 = sum of:
        0.017225713 = weight(_text_:17 in 2580) [ClassicSimilarity], result of:
          0.017225713 = score(doc=2580,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.13471568 = fieldWeight in 2580, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2580)
      0.2 = coord(1/5)
    
    Date
    27.12.2008 17:04:50
  16. Lewandowski, D.; Drechsler, J.; Mach, S. von: Deriving query intents from web search engine queries (2012) 0.00
    0.0034451426 = product of:
      0.017225713 = sum of:
        0.017225713 = weight(_text_:17 in 385) [ClassicSimilarity], result of:
          0.017225713 = score(doc=385,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.13471568 = fieldWeight in 385, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.0390625 = fieldNorm(doc=385)
      0.2 = coord(1/5)
    
    Date
    17. 2.1997 18:25:04
  17. Lewandowski, D.: ¬Die Informationswissenschaft hat ein strukturelles, kein inhaltliches Problem : Ein Sechs-Punkte-Programm, um aus dem Status eines kleinen Faches herauszukommen (2019) 0.00
    0.002756114 = product of:
      0.01378057 = sum of:
        0.01378057 = weight(_text_:17 in 5666) [ClassicSimilarity], result of:
          0.01378057 = score(doc=5666,freq=2.0), product of:
            0.12786718 = queryWeight, product of:
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.052434362 = queryNorm
            0.10777254 = fieldWeight in 5666, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4386141 = idf(docFreq=10490, maxDocs=44218)
              0.03125 = fieldNorm(doc=5666)
      0.2 = coord(1/5)
    
    Date
    19.11.2019 17:40:44

Years

Languages

Types