Search (30 results, page 1 of 2)

  • × author_ss:"Lewandowski, D."
  • × language_ss:"d"
  1. Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002) 0.02 
    0.024628742 = product of:
  0.049257483 = sum of:
    0.049257483 = product of:
      0.07388622 = sum of:
        0.02473851 = weight(_text_:h in 997) [ClassicSimilarity], result of:
          0.02473851 = score(doc=997,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 997, 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=997)
        0.049147714 = weight(_text_:22 in 997) [ClassicSimilarity], result of:
          0.049147714 = score(doc=997,freq=2.0), product of:
            0.1587864 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04534384 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    29. 9.2002 18:49:22
    Source
    BuB. 54(2002) H.9, S.558-561
  2. Lewandowski, D.: Abfragesprachen und erweiterte Funktionen von WWW-Suchmaschinen (2004) 0.02 
    0.024628742 = product of:
  0.049257483 = sum of:
    0.049257483 = product of:
      0.07388622 = sum of:
        0.02473851 = weight(_text_:h in 2314) [ClassicSimilarity], result of:
          0.02473851 = score(doc=2314,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 2314, 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=2314)
        0.049147714 = weight(_text_:22 in 2314) [ClassicSimilarity], result of:
          0.049147714 = score(doc=2314,freq=2.0), product of:
            0.1587864 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04534384 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    28.11.2004 13:11:22
    Source
    Information - Wissenschaft und Praxis. 55(2004) H.2, S.97-102
  3. Lewandowski, D.: Perspektiven eines Open Web Index (2016) 0.02 
    0.019017797 = product of:
  0.038035594 = sum of:
    0.038035594 = product of:
      0.057053387 = sum of:
        0.021646196 = weight(_text_:h in 2935) [ClassicSimilarity], result of:
          0.021646196 = score(doc=2935,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.19214681 = fieldWeight in 2935, 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=2935)
        0.035407193 = weight(_text_:j in 2935) [ClassicSimilarity], result of:
          0.035407193 = score(doc=2935,freq=2.0), product of:
            0.14407988 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.04534384 = queryNorm
            0.24574696 = fieldWeight in 2935, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2935)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Content
    Vgl.: http://www.degruyter.com/view/j/iwp.2016.67.issue-1/iwp-2016-0020/iwp-2016-0020.xml?format=INT.
    Source
    Information - Wissenschaft und Praxis. 67(2016) H.1, S.15-21
  4. Lewandowski, D.: ¬Die Macht der Suchmaschinen und ihr Einfluss auf unsere Entscheidungen (2014) 0.02 
    0.018471558 = product of:
  0.036943115 = sum of:
    0.036943115 = product of:
      0.05541467 = sum of:
        0.018553881 = weight(_text_:h in 1491) [ClassicSimilarity], result of:
          0.018553881 = score(doc=1491,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.16469726 = fieldWeight in 1491, 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=1491)
        0.036860786 = weight(_text_:22 in 1491) [ClassicSimilarity], result of:
          0.036860786 = score(doc=1491,freq=2.0), product of:
            0.1587864 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04534384 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 9.2014 18:54:11
    Source
    Information - Wissenschaft und Praxis. 65(2014) H.4/5, S.231-238
  5. Lewandowski, D.: Query understanding (2011) 0.01 
    0.008191286 = product of:
  0.016382571 = sum of:
    0.016382571 = product of:
      0.049147714 = sum of:
        0.049147714 = weight(_text_:22 in 344) [ClassicSimilarity], result of:
          0.049147714 = score(doc=344,freq=2.0), product of:
            0.1587864 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04534384 = 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)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    18. 9.2018 18:22:18
  6. Lewandowski, D.: Web Information Retrieval : Technologien zur Informationssuche im Internet (2005) 0.01 
    0.006287575 = product of:
  0.01257515 = sum of:
    0.01257515 = product of:
      0.018862724 = sum of:
        0.008746384 = weight(_text_:h in 3635) [ClassicSimilarity], result of:
          0.008746384 = score(doc=3635,freq=4.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.077639036 = fieldWeight in 3635, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.015625 = fieldNorm(doc=3635)
        0.010116341 = weight(_text_:j in 3635) [ClassicSimilarity], result of:
          0.010116341 = score(doc=3635,freq=2.0), product of:
            0.14407988 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.04534384 = queryNorm
            0.070213415 = fieldWeight in 3635, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.015625 = fieldNorm(doc=3635)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Information - Wissenschaft und Praxis. 56(2005) H.7, S.393-394 (J. Griesbaum): "... , das Buch wird seinem Titel und dem formulierten Anspruch sehr gut gerecht. Die 248 Seiten umfängliche Publikation leistet eine umfassende und, für den deutschsprachigen Raum, einzigartige State-of-the-Art-Analyse der Verfahren und auch der Defizite von Suchmaschinen im Internet. Dabei beschränkt sich Lewandowski nicht auf eine technikzentrierte Beschreibung aktueller Retrievalansätze, sondern akzentuiert ebenso deutlich auch die Problemfelder bei der Nutzung von Suchmaschinen. Dieser nutzerzentrierte Ansatz kommt vor allem im konzeptionellen Teil der Arbeit zum Tragen, der das Ziel verfolgt, Suchmaschinennutzern verbesserte Rechercheoptionen zu verschaffen. Angesichts der nur in geringem Maße vorhandenen Recherchekenntnisse der Nutzer liegt die Herausforderung vor allem darin, solche verbesserten Recherchemöglichkeiten derart auszugestalten, dass sie sich in realen Suchkontexten auch tatsächlich auswirken und nicht etwa wie die meist als "Erweitere Suche" bezeichneten Anfragemasken ein kaum beachtetes Dasein fristen. Der Verfasser konzipiert in diesem wichtigen Forschungsfeld neue Ansätze, um die Oualität des Information Retrievals zu verbessern. ... "
    Weitere Rez. in: Mitt. VÖB 58(2005) H.4, S.116-119 (O. Oberhauser)
  7. Lewandowski, D.; Spree, U.: ¬Die Forschungsgruppe Search Studies an der HAW Hamburg (2019) 0.01 
    0.0061846273 = product of:
  0.012369255 = sum of:
    0.012369255 = product of:
      0.037107762 = sum of:
        0.037107762 = weight(_text_:h in 5021) [ClassicSimilarity], result of:
          0.037107762 = score(doc=5021,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.32939452 = fieldWeight in 5021, 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=5021)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Information - Wissenschaft und Praxis. 70(2019) H.1, S.1-2
  8. Lewandowski, D.: Desktop-Suche, Shortcuts, SMS (2004) 0.01 
    0.0051538562 = product of:
  0.0103077125 = sum of:
    0.0103077125 = product of:
      0.030923137 = sum of:
        0.030923137 = weight(_text_:h in 3287) [ClassicSimilarity], result of:
          0.030923137 = score(doc=3287,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.27449545 = fieldWeight in 3287, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.078125 = fieldNorm(doc=3287)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2004, H.11, S.40-41
  9. Lewandowski, D.: Neue Themen der Informationswissenschaft sind nicht zu erkennen (2004) 0.01 
    0.0051538562 = product of:
  0.0103077125 = sum of:
    0.0103077125 = product of:
      0.030923137 = sum of:
        0.030923137 = weight(_text_:h in 3292) [ClassicSimilarity], result of:
          0.030923137 = score(doc=3292,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.27449545 = fieldWeight in 3292, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.078125 = fieldNorm(doc=3292)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2004, H.12, S.8-10
  10. Lewandowski, D.: Spezialsuche für wissenschaftliche Informationen (2004) 0.01 
    0.0051538562 = product of:
  0.0103077125 = sum of:
    0.0103077125 = product of:
      0.030923137 = sum of:
        0.030923137 = weight(_text_:h in 3298) [ClassicSimilarity], result of:
          0.030923137 = score(doc=3298,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.27449545 = fieldWeight in 3298, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.078125 = fieldNorm(doc=3298)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2004, H.12, S.24
  11. Lewandowski, D.: Start der eigenen Suchmaschine als Beta-Version (2004) 0.01 
    0.0051538562 = product of:
  0.0103077125 = sum of:
    0.0103077125 = product of:
      0.030923137 = sum of:
        0.030923137 = weight(_text_:h in 3299) [ClassicSimilarity], result of:
          0.030923137 = score(doc=3299,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.27449545 = fieldWeight in 3299, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.078125 = fieldNorm(doc=3299)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2004, H.12, S.25
  12. Lewandowski, D.: Freiwillige Selbstkontrolle, Stärkung "alternativer Suchmaschinen" : Suchmaschinen und Politik (2005) 0.01 
    0.0051538562 = product of:
  0.0103077125 = sum of:
    0.0103077125 = product of:
      0.030923137 = sum of:
        0.030923137 = weight(_text_:h in 3374) [ClassicSimilarity], result of:
          0.030923137 = score(doc=3374,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.27449545 = fieldWeight in 3374, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.078125 = fieldNorm(doc=3374)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2005, H.4, S.19
  13. Lewandowski, D.: Neue Suchmaschinen, neue Datenbestände, Desktop-Suche, Shortcuts (2005) 0.01 
    0.0051538562 = product of:
  0.0103077125 = sum of:
    0.0103077125 = product of:
      0.030923137 = sum of:
        0.030923137 = weight(_text_:h in 3432) [ClassicSimilarity], result of:
          0.030923137 = score(doc=3432,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.27449545 = fieldWeight in 3432, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.078125 = fieldNorm(doc=3432)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2005, H.1, S.33
  14. Lewandowski, D.: Informationsarmut : sowohl ein quantitatives als auch ein qualitatives Problem (1999) 0.00 
    0.004123085 = product of:
  0.00824617 = sum of:
    0.00824617 = product of:
      0.02473851 = sum of:
        0.02473851 = weight(_text_:h in 3646) [ClassicSimilarity], result of:
          0.02473851 = score(doc=3646,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 3646, 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=3646)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Bibliothek: Forschung und Praxis. 23(1999) H.1, S.5-13
  15. Lewandowski, D.: Wie können sich Bibliotheken gegenüber Wissenschaftssuchmaschinen positionieren? (2007) 0.00 
    0.004123085 = product of:
  0.00824617 = sum of:
    0.00824617 = product of:
      0.02473851 = sum of:
        0.02473851 = weight(_text_:h in 5112) [ClassicSimilarity], result of:
          0.02473851 = score(doc=5112,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 5112, 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=5112)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Wa(h)re Information: 29. Österreichischer Bibliothekartag Bregenz, 19.-23.9.2006. Hrsg.: Harald Weigel
  16. Lewandowski, D.: "Find what I mean not what I say" : Neuere Ansätze zur Qualifizierung von Suchmaschinen-Ergebnissen (2001) 0.00 
    0.004123085 = product of:
  0.00824617 = sum of:
    0.00824617 = product of:
      0.02473851 = sum of:
        0.02473851 = weight(_text_:h in 5932) [ClassicSimilarity], result of:
          0.02473851 = score(doc=5932,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 5932, 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=5932)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    BuB. 53(2001) H.6/7, S.381-386
  17. Lewandowski, D.: Aktualität als erfolgskritischer Faktor bei Suchmaschinen (2006) 0.00 
    0.004123085 = product of:
  0.00824617 = sum of:
    0.00824617 = product of:
      0.02473851 = sum of:
        0.02473851 = weight(_text_:h in 1816) [ClassicSimilarity], result of:
          0.02473851 = score(doc=1816,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 1816, 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=1816)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Information - Wissenschaft und Praxis. 57(2006) H.3, S.141-148
  18. Lewandowski, D.: Was Google nicht kann, aber Yahoo (2004) 0.00 
    0.004123085 = product of:
  0.00824617 = sum of:
    0.00824617 = product of:
      0.02473851 = sum of:
        0.02473851 = weight(_text_:h in 3291) [ClassicSimilarity], result of:
          0.02473851 = score(doc=3291,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.21959636 = fieldWeight in 3291, 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=3291)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Password. 2004, H.11, S.42
  19. Lewandowski, D.: Suchmaschinen als Konkurrenten der Bibliothekskataloge : Wie Bibliotheken ihre Angebote durch Suchmaschinentechnologie attraktiver und durch Öffnung für die allgemeinen Suchmaschinen populärer machen können (2006) 0.00 
    0.0036076994 = product of:
  0.007215399 = sum of:
    0.007215399 = product of:
      0.021646196 = sum of:
        0.021646196 = weight(_text_:h in 3449) [ClassicSimilarity], result of:
          0.021646196 = score(doc=3449,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.19214681 = fieldWeight in 3449, 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=3449)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Zeitschrift für Bibliothekswesen und Bibliographie. 53(2006) H.2, S.71-78
  20. Behnert, C.; Plassmeier, K.; Borst, T.; Lewandowski, D.: Evaluierung von Rankingverfahren für bibliothekarische Informationssysteme (2019) 0.00 
    0.0036076994 = product of:
  0.007215399 = sum of:
    0.007215399 = product of:
      0.021646196 = sum of:
        0.021646196 = weight(_text_:h in 5023) [ClassicSimilarity], result of:
          0.021646196 = score(doc=5023,freq=2.0), product of:
            0.11265446 = queryWeight, product of:
              2.4844491 = idf(docFreq=10020, maxDocs=44218)
              0.04534384 = queryNorm
            0.19214681 = fieldWeight in 5023, 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=5023)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Information - Wissenschaft und Praxis. 70(2019) H.1, S.14-23

Authors

Years

Types

  • a 29
  • el 1
  • m 1
  • More… Less…

Themes