Document (#42745)

Author
Walz, J.
Title
Analyse der Übertragbarkeit allgemeiner Rankingfaktoren von Web-Suchmaschinen auf Discovery-Systeme
Imprint
Köln : Fakultät für Informations- und Kommunikationswissenschaften
Year
2018
Pages
75 S
Abstract
Ziel: Ziel dieser Bachelorarbeit war es, die Übertragbarkeit der allgemeinen Rankingfaktoren, wie sie von Web-Suchmaschinen verwendet werden, auf Discovery-Systeme zu analysieren. Dadurch könnte das bisher hauptsächlich auf dem textuellen Abgleich zwischen Suchanfrage und Dokumenten basierende bibliothekarische Ranking verbessert werden. Methode: Hierfür wurden Faktoren aus den Gruppen Popularität, Aktualität, Lokalität, Technische Faktoren, sowie dem personalisierten Ranking diskutiert. Die entsprechenden Rankingfaktoren wurden nach ihrer Vorkommenshäufigkeit in der analysierten Literatur und der daraus abgeleiteten Wichtigkeit, ausgewählt. Ergebnis: Von den 23 untersuchten Rankingfaktoren sind 14 (61 %) direkt vom Ranking der Web-Suchmaschinen auf das Ranking der Discovery-Systeme übertragbar. Zu diesen zählen unter anderem das Klickverhalten, das Erstellungsdatum, der Nutzerstandort, sowie die Sprache. Sechs (26%) der untersuchten Faktoren sind dagegen nicht übertragbar (z.B. Aktualisierungsfrequenz und Ladegeschwindigkeit). Die Linktopologie, die Nutzungshäufigkeit, sowie die Aktualisierungsfrequenz sind mit entsprechenden Modifikationen übertragbar.
Content
Vgl.: https://publiscologne.th-koeln.de/frontdoor/index/index/searchtype/authorsearch/author/Julia+Walz/docId/1169/start/0/rows/10.
Footnote
Bachelorarbeit Bibliothekswissenschaft, Technische Hochschule Köln.
Theme
Katalogfragen allgemein
Retrievalalgorithmen

Similar documents (content)

  1. Mensing, P.: Beispielhafter Vergleich und Analyse online verfügbarer digitaler Bilddatenbanken aus dem Bereich der Pomologie (2010) 0.21 
    0.2065646 = sum of:
  0.2065646 = product of:
    0.73773074 = sum of:
      0.06913358 = weight(abstract_txt:ausgewählt in 566) [ClassicSimilarity], result of:
        0.06913358 = score(doc=566,freq=1.0), product of:
          0.1310066 = queryWeight, product of:
            1.0537632 = boost
            8.443371 = idf(docFreq=25, maxDocs=44421)
            0.014724288 = queryNorm
          0.5277107 = fieldWeight in 566, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.443371 = idf(docFreq=25, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
      0.13079938 = weight(abstract_txt:textuellen in 566) [ClassicSimilarity], result of:
        0.13079938 = score(doc=566,freq=2.0), product of:
          0.15905999 = queryWeight, product of:
            1.1611195 = boost
            9.303573 = idf(docFreq=10, maxDocs=44421)
            0.014724288 = queryNorm
          0.8223274 = fieldWeight in 566, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            9.303573 = idf(docFreq=10, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
      0.07235431 = weight(abstract_txt:wurden in 566) [ClassicSimilarity], result of:
        0.07235431 = score(doc=566,freq=5.0), product of:
          0.0995016 = queryWeight, product of:
            1.2987527 = boost
            5.2031856 = idf(docFreq=663, maxDocs=44421)
            0.014724288 = queryNorm
          0.7271673 = fieldWeight in 566, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            5.2031856 = idf(docFreq=663, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
      0.020733645 = weight(abstract_txt:sind in 566) [ClassicSimilarity], result of:
        0.020733645 = score(doc=566,freq=1.0), product of:
          0.08465605 = queryWeight, product of:
            1.467189 = boost
            3.9186604 = idf(docFreq=2398, maxDocs=44421)
            0.014724288 = queryNorm
          0.24491628 = fieldWeight in 566, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.9186604 = idf(docFreq=2398, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
      0.034009088 = weight(abstract_txt:sowie in 566) [ClassicSimilarity], result of:
        0.034009088 = score(doc=566,freq=1.0), product of:
          0.11774366 = queryWeight, product of:
            1.7303176 = boost
            4.621441 = idf(docFreq=1187, maxDocs=44421)
            0.014724288 = queryNorm
          0.28884006 = fieldWeight in 566, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.621441 = idf(docFreq=1187, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
      0.15425591 = weight(abstract_txt:untersuchten in 566) [ClassicSimilarity], result of:
        0.15425591 = score(doc=566,freq=1.0), product of:
          0.28184155 = queryWeight, product of:
            2.1858177 = boost
            8.757029 = idf(docFreq=18, maxDocs=44421)
            0.014724288 = queryNorm
          0.5473143 = fieldWeight in 566, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.757029 = idf(docFreq=18, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
      0.2564448 = weight(abstract_txt:übertragbar in 566) [ClassicSimilarity], result of:
        0.2564448 = score(doc=566,freq=1.0), product of:
          0.45276222 = queryWeight, product of:
            3.3930647 = boost
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.014724288 = queryNorm
          0.56640065 = fieldWeight in 566, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.06241 = idf(docFreq=13, maxDocs=44421)
            0.0625 = fieldNorm(doc=566)
    0.28 = coord(7/25)
  2. Tober, M.; Hennig, L.; Furch, D.: SEO Ranking-Faktoren und Rang-Korrelationen 2014 : Google Deutschland (2014) 0.16 
    0.16351055 = sum of:
  0.16351055 = product of:
    0.8175527 = sum of:
      0.056626204 = weight(abstract_txt:wurden in 2484) [ClassicSimilarity], result of:
        0.056626204 = score(doc=2484,freq=1.0), product of:
          0.0995016 = queryWeight, product of:
            1.2987527 = boost
            5.2031856 = idf(docFreq=663, maxDocs=44421)
            0.014724288 = queryNorm
          0.5690984 = fieldWeight in 2484, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.2031856 = idf(docFreq=663, maxDocs=44421)
            0.109375 = fieldNorm(doc=2484)
      0.0595159 = weight(abstract_txt:sowie in 2484) [ClassicSimilarity], result of:
        0.0595159 = score(doc=2484,freq=1.0), product of:
          0.11774366 = queryWeight, product of:
            1.7303176 = boost
            4.621441 = idf(docFreq=1187, maxDocs=44421)
            0.014724288 = queryNorm
          0.5054701 = fieldWeight in 2484, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.621441 = idf(docFreq=1187, maxDocs=44421)
            0.109375 = fieldNorm(doc=2484)
      0.12304318 = weight(abstract_txt:suchmaschinen in 2484) [ClassicSimilarity], result of:
        0.12304318 = score(doc=2484,freq=1.0), product of:
          0.19108234 = queryWeight, product of:
            2.204283 = boost
            5.887337 = idf(docFreq=334, maxDocs=44421)
            0.014724288 = queryNorm
          0.6439275 = fieldWeight in 2484, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.887337 = idf(docFreq=334, maxDocs=44421)
            0.109375 = fieldNorm(doc=2484)
      0.14093849 = weight(abstract_txt:ranking in 2484) [ClassicSimilarity], result of:
        0.14093849 = score(doc=2484,freq=1.0), product of:
          0.2302404 = queryWeight, product of:
            2.7939408 = boost
            5.5966744 = idf(docFreq=447, maxDocs=44421)
            0.014724288 = queryNorm
          0.61213624 = fieldWeight in 2484, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.5966744 = idf(docFreq=447, maxDocs=44421)
            0.109375 = fieldNorm(doc=2484)
      0.4374289 = weight(abstract_txt:faktoren in 2484) [ClassicSimilarity], result of:
        0.4374289 = score(doc=2484,freq=3.0), product of:
          0.30861244 = queryWeight, product of:
            2.8013268 = boost
            7.48196 = idf(docFreq=67, maxDocs=44421)
            0.014724288 = queryNorm
          1.4174052 = fieldWeight in 2484, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            7.48196 = idf(docFreq=67, maxDocs=44421)
            0.109375 = fieldNorm(doc=2484)
    0.2 = coord(5/25)
  3. Hora, M.: Methoden für das Ranking in Discovery-Systemen (2018) 0.10 
    0.096346654 = sum of:
  0.096346654 = product of:
    0.6021666 = sum of:
      0.12531614 = weight(abstract_txt:popularität in 968) [ClassicSimilarity], result of:
        0.12531614 = score(doc=968,freq=1.0), product of:
          0.14863154 = queryWeight, product of:
            1.122411 = boost
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.014724288 = queryNorm
          0.8431329 = fieldWeight in 968, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.09375 = fieldNorm(doc=968)
      0.15864284 = weight(abstract_txt:discovery in 968) [ClassicSimilarity], result of:
        0.15864284 = score(doc=968,freq=3.0), product of:
          0.17393486 = queryWeight, product of:
            2.1030538 = boost
            5.616968 = idf(docFreq=438, maxDocs=44421)
            0.014724288 = queryNorm
          0.91208196 = fieldWeight in 968, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.616968 = idf(docFreq=438, maxDocs=44421)
            0.09375 = fieldNorm(doc=968)
      0.14736438 = weight(abstract_txt:systeme in 968) [ClassicSimilarity], result of:
        0.14736438 = score(doc=968,freq=2.0), product of:
          0.18955345 = queryWeight, product of:
            2.1954467 = boost
            5.863737 = idf(docFreq=342, maxDocs=44421)
            0.014724288 = queryNorm
          0.7774291 = fieldWeight in 968, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.863737 = idf(docFreq=342, maxDocs=44421)
            0.09375 = fieldNorm(doc=968)
      0.17084326 = weight(abstract_txt:ranking in 968) [ClassicSimilarity], result of:
        0.17084326 = score(doc=968,freq=2.0), product of:
          0.2302404 = queryWeight, product of:
            2.7939408 = boost
            5.5966744 = idf(docFreq=447, maxDocs=44421)
            0.014724288 = queryNorm
          0.7420212 = fieldWeight in 968, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.5966744 = idf(docFreq=447, maxDocs=44421)
            0.09375 = fieldNorm(doc=968)
    0.16 = coord(4/25)
  4. Lewandowski, D.: Web Information Retrieval : Technologien zur Informationssuche im Internet (2005) 0.09 
    0.08523862 = sum of:
  0.08523862 = product of:
    0.35516092 = sum of:
      0.028022703 = weight(abstract_txt:wurden in 622) [ClassicSimilarity], result of:
        0.028022703 = score(doc=622,freq=3.0), product of:
          0.0995016 = queryWeight, product of:
            1.2987527 = boost
            5.2031856 = idf(docFreq=663, maxDocs=44421)
            0.014724288 = queryNorm
          0.28163067 = fieldWeight in 622, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.2031856 = idf(docFreq=663, maxDocs=44421)
            0.03125 = fieldNorm(doc=622)
      0.0191398 = weight(abstract_txt:ziel in 622) [ClassicSimilarity], result of:
        0.0191398 = score(doc=622,freq=1.0), product of:
          0.11129835 = queryWeight, product of:
            1.3735858 = boost
            5.502989 = idf(docFreq=491, maxDocs=44421)
            0.014724288 = queryNorm
          0.1719684 = fieldWeight in 622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.502989 = idf(docFreq=491, maxDocs=44421)
            0.03125 = fieldNorm(doc=622)
      0.025393426 = weight(abstract_txt:sind in 622) [ClassicSimilarity], result of:
        0.025393426 = score(doc=622,freq=6.0), product of:
          0.08465605 = queryWeight, product of:
            1.467189 = boost
            3.9186604 = idf(docFreq=2398, maxDocs=44421)
            0.014724288 = queryNorm
          0.29995996 = fieldWeight in 622, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.9186604 = idf(docFreq=2398, maxDocs=44421)
            0.03125 = fieldNorm(doc=622)
      0.017004544 = weight(abstract_txt:sowie in 622) [ClassicSimilarity], result of:
        0.017004544 = score(doc=622,freq=1.0), product of:
          0.11774366 = queryWeight, product of:
            1.7303176 = boost
            4.621441 = idf(docFreq=1187, maxDocs=44421)
            0.014724288 = queryNorm
          0.14442003 = fieldWeight in 622, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.621441 = idf(docFreq=1187, maxDocs=44421)
            0.03125 = fieldNorm(doc=622)
      0.14062077 = weight(abstract_txt:suchmaschinen in 622) [ClassicSimilarity], result of:
        0.14062077 = score(doc=622,freq=16.0), product of:
          0.19108234 = queryWeight, product of:
            2.204283 = boost
            5.887337 = idf(docFreq=334, maxDocs=44421)
            0.014724288 = queryNorm
          0.73591715 = fieldWeight in 622, product of:
            4.0 = tf(freq=16.0), with freq of:
              16.0 = termFreq=16.0
            5.887337 = idf(docFreq=334, maxDocs=44421)
            0.03125 = fieldNorm(doc=622)
      0.12497968 = weight(abstract_txt:faktoren in 622) [ClassicSimilarity], result of:
        0.12497968 = score(doc=622,freq=3.0), product of:
          0.30861244 = queryWeight, product of:
            2.8013268 = boost
            7.48196 = idf(docFreq=67, maxDocs=44421)
            0.014724288 = queryNorm
          0.40497294 = fieldWeight in 622, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            7.48196 = idf(docFreq=67, maxDocs=44421)
            0.03125 = fieldNorm(doc=622)
    0.24 = coord(6/25)
  5. Kwiatkowski, M.; Höhfeld, S.: Thematisches Aufspüren von Web-Dokumenten : eine kritische Betrachtung von Focused Crawling-Strategien (2007) 0.08 
    0.084931076 = sum of:
  0.084931076 = product of:
    0.35387948 = sum of:
      0.06490245 = weight(abstract_txt:allgemeiner in 1153) [ClassicSimilarity], result of:
        0.06490245 = score(doc=1153,freq=1.0), product of:
          0.12560527 = queryWeight, product of:
            1.0318115 = boost
            8.267481 = idf(docFreq=30, maxDocs=44421)
            0.014724288 = queryNorm
          0.51671755 = fieldWeight in 1153, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.267481 = idf(docFreq=30, maxDocs=44421)
            0.0625 = fieldNorm(doc=1153)
      0.0382796 = weight(abstract_txt:ziel in 1153) [ClassicSimilarity], result of:
        0.0382796 = score(doc=1153,freq=1.0), product of:
          0.11129835 = queryWeight, product of:
            1.3735858 = boost
            5.502989 = idf(docFreq=491, maxDocs=44421)
            0.014724288 = queryNorm
          0.3439368 = fieldWeight in 1153, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.502989 = idf(docFreq=491, maxDocs=44421)
            0.0625 = fieldNorm(doc=1153)
      0.020733645 = weight(abstract_txt:sind in 1153) [ClassicSimilarity], result of:
        0.020733645 = score(doc=1153,freq=1.0), product of:
          0.08465605 = queryWeight, product of:
            1.467189 = boost
            3.9186604 = idf(docFreq=2398, maxDocs=44421)
            0.014724288 = queryNorm
          0.24491628 = fieldWeight in 1153, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.9186604 = idf(docFreq=2398, maxDocs=44421)
            0.0625 = fieldNorm(doc=1153)
      0.06106166 = weight(abstract_txt:discovery in 1153) [ClassicSimilarity], result of:
        0.06106166 = score(doc=1153,freq=1.0), product of:
          0.17393486 = queryWeight, product of:
            2.1030538 = boost
            5.616968 = idf(docFreq=438, maxDocs=44421)
            0.014724288 = queryNorm
          0.3510605 = fieldWeight in 1153, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.616968 = idf(docFreq=438, maxDocs=44421)
            0.0625 = fieldNorm(doc=1153)
      0.06946823 = weight(abstract_txt:systeme in 1153) [ClassicSimilarity], result of:
        0.06946823 = score(doc=1153,freq=1.0), product of:
          0.18955345 = queryWeight, product of:
            2.1954467 = boost
            5.863737 = idf(docFreq=342, maxDocs=44421)
            0.014724288 = queryNorm
          0.36648357 = fieldWeight in 1153, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.863737 = idf(docFreq=342, maxDocs=44421)
            0.0625 = fieldNorm(doc=1153)
      0.0994339 = weight(abstract_txt:suchmaschinen in 1153) [ClassicSimilarity], result of:
        0.0994339 = score(doc=1153,freq=2.0), product of:
          0.19108234 = queryWeight, product of:
            2.204283 = boost
            5.887337 = idf(docFreq=334, maxDocs=44421)
            0.014724288 = queryNorm
          0.520372 = fieldWeight in 1153, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.887337 = idf(docFreq=334, maxDocs=44421)
            0.0625 = fieldNorm(doc=1153)
    0.24 = coord(6/25)