Document (#43521)

Author
Reimer, U.
Title
Empfehlungssysteme
Source
Grundlagen der Informationswissenschaft. Hrsg.: Rainer Kuhlen, Dirk Lewandowski, Wolfgang Semar und Christa Womser-Hacker. 7., völlig neu gefasste Ausg
Imprint
Berlin : DeGruyter
Year
2023
Pages
S.485-495
Abstract
Mit der wachsenden Informationsflut steigen die Anforderungen an Informationssysteme, aus der Menge potenziell relevanter Information die in einem bestimmten Kontext relevanteste zu selektieren. Empfehlungssysteme spielen hier eine besondere Rolle, da sie personalisiert - d. h. kontextspezifisch und benutzerindividuell - relevante Information herausfiltern können. Definition: Ein Empfehlungssystem empfiehlt einem Benutzer bzw. einer Benutzerin in einem definierten Kontext aus einer gegebenen Menge von Empfehlungsobjekten eine Teilmenge als relevant. Empfehlungssysteme machen Benutzer auf Objekte aufmerksam, die sie möglicherweise nie gefunden hätten, weil sie nicht danach gesucht hätten oder sie in der schieren Menge an insgesamt relevanter Information untergegangen wären.
Footnote
Vgl.: https://doi.org/10.1515/9783110769043.
Theme
Retrievalalgorithmen

Similar documents (author)

  1. Reimer, U.: Verfahren der automatischen Indexierung : benötigtes Vorwissen und Ansätze zu seiner automatischen Akquisition, ein Überblick (1992) 5.51 
    5.506935 = sum of:
  5.506935 = weight(author_txt:reimer in 7857) [ClassicSimilarity], result of:
    5.506935 = fieldWeight in 7857, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.811096 = idf(docFreq=17, maxDocs=44421)
      0.625 = fieldNorm(doc=7857)
  2. Reimer, U.: Automatische Wissensakquisition aus Texten : Lernen terminologischen Wissens (1990) 5.51 
    5.506935 = sum of:
  5.506935 = weight(author_txt:reimer in 41) [ClassicSimilarity], result of:
    5.506935 = fieldWeight in 41, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.811096 = idf(docFreq=17, maxDocs=44421)
      0.625 = fieldNorm(doc=41)
  3. Reimer, U.: Neue Formen der Wissensrepräsentation (1990) 5.51 
    5.506935 = sum of:
  5.506935 = weight(author_txt:reimer in 4370) [ClassicSimilarity], result of:
    5.506935 = fieldWeight in 4370, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.811096 = idf(docFreq=17, maxDocs=44421)
      0.625 = fieldNorm(doc=4370)
  4. Reimer, U.: Neue Formen der Wissensrepräsentation (1997) 5.51 
    5.506935 = sum of:
  5.506935 = weight(author_txt:reimer in 873) [ClassicSimilarity], result of:
    5.506935 = fieldWeight in 873, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.811096 = idf(docFreq=17, maxDocs=44421)
      0.625 = fieldNorm(doc=873)
  5. Reimer, U.: Empfehlungssysteme (2013) 5.51 
    5.506935 = sum of:
  5.506935 = weight(author_txt:reimer in 3808) [ClassicSimilarity], result of:
    5.506935 = fieldWeight in 3808, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.811096 = idf(docFreq=17, maxDocs=44421)
      0.625 = fieldNorm(doc=3808)

Similar documents (content)

  1. Kaiser, A.: Computer-unterstütztes Indexieren in Intelligenten Information Retrieval Systemen : Ein Relevanz-Feedback orientierter Ansatz zur Informationserschließung in unformatierten Datenbanken (1993) 0.10 
    0.10050487 = sum of:
  0.10050487 = product of:
    0.35894597 = sum of:
      0.011359225 = weight(abstract_txt:information in 284) [ClassicSimilarity], result of:
        0.011359225 = score(doc=284,freq=13.0), product of:
          0.041678224 = queryWeight, product of:
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.017230242 = queryNorm
          0.2725458 = fieldWeight in 284, product of:
            3.6055512 = tf(freq=13.0), with freq of:
              13.0 = termFreq=13.0
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
      0.033797268 = weight(abstract_txt:informationsflut in 284) [ClassicSimilarity], result of:
        0.033797268 = score(doc=284,freq=1.0), product of:
          0.14056325 = queryWeight, product of:
            1.0602802 = boost
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.017230242 = queryNorm
          0.2404417 = fieldWeight in 284, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
      0.012283638 = weight(abstract_txt:einer in 284) [ClassicSimilarity], result of:
        0.012283638 = score(doc=284,freq=2.0), product of:
          0.071587205 = queryWeight, product of:
            1.070083 = boost
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.017230242 = queryNorm
          0.17158985 = fieldWeight in 284, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
      0.06885755 = weight(abstract_txt:benutzer in 284) [ClassicSimilarity], result of:
        0.06885755 = score(doc=284,freq=4.0), product of:
          0.17929788 = queryWeight, product of:
            1.6935083 = boost
            6.1446395 = idf(docFreq=258, maxDocs=44421)
            0.017230242 = queryNorm
          0.38403997 = fieldWeight in 284, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            6.1446395 = idf(docFreq=258, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
      0.025656808 = weight(abstract_txt:einem in 284) [ClassicSimilarity], result of:
        0.025656808 = score(doc=284,freq=2.0), product of:
          0.13390072 = queryWeight, product of:
            1.7924079 = boost
            4.3356547 = idf(docFreq=1580, maxDocs=44421)
            0.017230242 = queryNorm
          0.19161068 = fieldWeight in 284, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.3356547 = idf(docFreq=1580, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
      0.07364783 = weight(abstract_txt:relevanter in 284) [ClassicSimilarity], result of:
        0.07364783 = score(doc=284,freq=1.0), product of:
          0.2976693 = queryWeight, product of:
            2.1820605 = boost
            7.917278 = idf(docFreq=43, maxDocs=44421)
            0.017230242 = queryNorm
          0.24741493 = fieldWeight in 284, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.917278 = idf(docFreq=43, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
      0.13334364 = weight(abstract_txt:menge in 284) [ClassicSimilarity], result of:
        0.13334364 = score(doc=284,freq=3.0), product of:
          0.35096648 = queryWeight, product of:
            2.9018717 = boost
            7.019336 = idf(docFreq=107, maxDocs=44421)
            0.017230242 = queryNorm
          0.3799327 = fieldWeight in 284, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            7.019336 = idf(docFreq=107, maxDocs=44421)
            0.03125 = fieldNorm(doc=284)
    0.28 = coord(7/25)
  2. Artemenko, O.; Shramko, M.: Entwicklung eines Werkzeugs zur Sprachidentifikation in mono- und multilingualen Texten (2005) 0.09 
    0.086449295 = sum of:
  0.086449295 = product of:
    0.30874747 = sum of:
      0.003938103 = weight(abstract_txt:information in 1572) [ClassicSimilarity], result of:
        0.003938103 = score(doc=1572,freq=1.0), product of:
          0.041678224 = queryWeight, product of:
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.017230242 = queryNorm
          0.09448826 = fieldWeight in 1572, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
      0.041950483 = weight(abstract_txt:wachsenden in 1572) [ClassicSimilarity], result of:
        0.041950483 = score(doc=1572,freq=1.0), product of:
          0.13990569 = queryWeight, product of:
            1.0577973 = boost
            7.676116 = idf(docFreq=55, maxDocs=44421)
            0.017230242 = queryNorm
          0.2998483 = fieldWeight in 1572, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.676116 = idf(docFreq=55, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
      0.042246584 = weight(abstract_txt:informationsflut in 1572) [ClassicSimilarity], result of:
        0.042246584 = score(doc=1572,freq=1.0), product of:
          0.14056325 = queryWeight, product of:
            1.0602802 = boost
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.017230242 = queryNorm
          0.30055213 = fieldWeight in 1572, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
      0.018805403 = weight(abstract_txt:einer in 1572) [ClassicSimilarity], result of:
        0.018805403 = score(doc=1572,freq=3.0), product of:
          0.071587205 = queryWeight, product of:
            1.070083 = boost
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.017230242 = queryNorm
          0.26269224 = fieldWeight in 1572, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
      0.04303597 = weight(abstract_txt:benutzer in 1572) [ClassicSimilarity], result of:
        0.04303597 = score(doc=1572,freq=1.0), product of:
          0.17929788 = queryWeight, product of:
            1.6935083 = boost
            6.1446395 = idf(docFreq=258, maxDocs=44421)
            0.017230242 = queryNorm
          0.24002498 = fieldWeight in 1572, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.1446395 = idf(docFreq=258, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
      0.022677628 = weight(abstract_txt:einem in 1572) [ClassicSimilarity], result of:
        0.022677628 = score(doc=1572,freq=1.0), product of:
          0.13390072 = queryWeight, product of:
            1.7924079 = boost
            4.3356547 = idf(docFreq=1580, maxDocs=44421)
            0.017230242 = queryNorm
          0.16936152 = fieldWeight in 1572, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.3356547 = idf(docFreq=1580, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
      0.1360933 = weight(abstract_txt:menge in 1572) [ClassicSimilarity], result of:
        0.1360933 = score(doc=1572,freq=2.0), product of:
          0.35096648 = queryWeight, product of:
            2.9018717 = boost
            7.019336 = idf(docFreq=107, maxDocs=44421)
            0.017230242 = queryNorm
          0.38776723 = fieldWeight in 1572, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.019336 = idf(docFreq=107, maxDocs=44421)
            0.0390625 = fieldNorm(doc=1572)
    0.28 = coord(7/25)
  3. Fuhr, N.: Theorie des Information Retrieval I : Modelle (2004) 0.08 
    0.08297749 = sum of:
  0.08297749 = product of:
    0.41488743 = sum of:
      0.006300965 = weight(abstract_txt:information in 3912) [ClassicSimilarity], result of:
        0.006300965 = score(doc=3912,freq=1.0), product of:
          0.041678224 = queryWeight, product of:
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.017230242 = queryNorm
          0.15118122 = fieldWeight in 3912, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.0625 = fieldNorm(doc=3912)
      0.030088644 = weight(abstract_txt:einer in 3912) [ClassicSimilarity], result of:
        0.030088644 = score(doc=3912,freq=3.0), product of:
          0.071587205 = queryWeight, product of:
            1.070083 = boost
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.017230242 = queryNorm
          0.42030758 = fieldWeight in 3912, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.0625 = fieldNorm(doc=3912)
      0.091891006 = weight(abstract_txt:gegebenen in 3912) [ClassicSimilarity], result of:
        0.091891006 = score(doc=3912,freq=1.0), product of:
          0.17249615 = queryWeight, product of:
            1.174558 = boost
            8.523414 = idf(docFreq=23, maxDocs=44421)
            0.017230242 = queryNorm
          0.53271335 = fieldWeight in 3912, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.523414 = idf(docFreq=23, maxDocs=44421)
            0.0625 = fieldNorm(doc=3912)
      0.06885755 = weight(abstract_txt:benutzer in 3912) [ClassicSimilarity], result of:
        0.06885755 = score(doc=3912,freq=1.0), product of:
          0.17929788 = queryWeight, product of:
            1.6935083 = boost
            6.1446395 = idf(docFreq=258, maxDocs=44421)
            0.017230242 = queryNorm
          0.38403997 = fieldWeight in 3912, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.1446395 = idf(docFreq=258, maxDocs=44421)
            0.0625 = fieldNorm(doc=3912)
      0.21774927 = weight(abstract_txt:menge in 3912) [ClassicSimilarity], result of:
        0.21774927 = score(doc=3912,freq=2.0), product of:
          0.35096648 = queryWeight, product of:
            2.9018717 = boost
            7.019336 = idf(docFreq=107, maxDocs=44421)
            0.017230242 = queryNorm
          0.62042755 = fieldWeight in 3912, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.019336 = idf(docFreq=107, maxDocs=44421)
            0.0625 = fieldNorm(doc=3912)
    0.2 = coord(5/25)
  4. Siemes, V.: Mittelstand muss die Scheu vorm Internet überwinden : Neue Medien schaffen neue, ungewohnte Berufe und verlangen von Unternehmen und Mitarbeitern neues Denken (2001) 0.08 
    0.08227716 = sum of:
  0.08227716 = product of:
    0.293847 = sum of:
      0.04746155 = weight(abstract_txt:wachsenden in 6706) [ClassicSimilarity], result of:
        0.04746155 = score(doc=6706,freq=2.0), product of:
          0.13990569 = queryWeight, product of:
            1.0577973 = boost
            7.676116 = idf(docFreq=55, maxDocs=44421)
            0.017230242 = queryNorm
          0.3392396 = fieldWeight in 6706, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.676116 = idf(docFreq=55, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
      0.033560384 = weight(abstract_txt:gesucht in 6706) [ClassicSimilarity], result of:
        0.033560384 = score(doc=6706,freq=1.0), product of:
          0.13990569 = queryWeight, product of:
            1.0577973 = boost
            7.676116 = idf(docFreq=55, maxDocs=44421)
            0.017230242 = queryNorm
          0.23987862 = fieldWeight in 6706, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.676116 = idf(docFreq=55, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
      0.033797268 = weight(abstract_txt:informationsflut in 6706) [ClassicSimilarity], result of:
        0.033797268 = score(doc=6706,freq=1.0), product of:
          0.14056325 = queryWeight, product of:
            1.0602802 = boost
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.017230242 = queryNorm
          0.2404417 = fieldWeight in 6706, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
      0.012283638 = weight(abstract_txt:einer in 6706) [ClassicSimilarity], result of:
        0.012283638 = score(doc=6706,freq=2.0), product of:
          0.071587205 = queryWeight, product of:
            1.070083 = boost
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.017230242 = queryNorm
          0.17158985 = fieldWeight in 6706, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
      0.061607137 = weight(abstract_txt:selektieren in 6706) [ClassicSimilarity], result of:
        0.061607137 = score(doc=6706,freq=1.0), product of:
          0.20975135 = queryWeight, product of:
            1.295201 = boost
            9.398883 = idf(docFreq=9, maxDocs=44421)
            0.017230242 = queryNorm
          0.2937151 = fieldWeight in 6706, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.398883 = idf(docFreq=9, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
      0.018142102 = weight(abstract_txt:einem in 6706) [ClassicSimilarity], result of:
        0.018142102 = score(doc=6706,freq=1.0), product of:
          0.13390072 = queryWeight, product of:
            1.7924079 = boost
            4.3356547 = idf(docFreq=1580, maxDocs=44421)
            0.017230242 = queryNorm
          0.13548921 = fieldWeight in 6706, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.3356547 = idf(docFreq=1580, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
      0.08699492 = weight(abstract_txt:hätten in 6706) [ClassicSimilarity], result of:
        0.08699492 = score(doc=6706,freq=1.0), product of:
          0.33262637 = queryWeight, product of:
            2.3066308 = boost
            8.369263 = idf(docFreq=27, maxDocs=44421)
            0.017230242 = queryNorm
          0.26153946 = fieldWeight in 6706, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.369263 = idf(docFreq=27, maxDocs=44421)
            0.03125 = fieldNorm(doc=6706)
    0.28 = coord(7/25)
  5. Altenhöner, R.; Steinke, T.: Kooperative Langzeitarchivierung elektronischer Pflichtexemplare (2005) 0.07 
    0.07491275 = sum of:
  0.07491275 = product of:
    0.37456375 = sum of:
      0.007876206 = weight(abstract_txt:information in 4853) [ClassicSimilarity], result of:
        0.007876206 = score(doc=4853,freq=1.0), product of:
          0.041678224 = queryWeight, product of:
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.017230242 = queryNorm
          0.18897653 = fieldWeight in 4853, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            2.4188995 = idf(docFreq=10748, maxDocs=44421)
            0.078125 = fieldNorm(doc=4853)
      0.07311613 = weight(abstract_txt:objekte in 4853) [ClassicSimilarity], result of:
        0.07311613 = score(doc=4853,freq=1.0), product of:
          0.12764375 = queryWeight, product of:
            1.0103796 = boost
            7.33202 = idf(docFreq=78, maxDocs=44421)
            0.017230242 = queryNorm
          0.57281405 = fieldWeight in 4853, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.33202 = idf(docFreq=78, maxDocs=44421)
            0.078125 = fieldNorm(doc=4853)
      0.02171461 = weight(abstract_txt:einer in 4853) [ClassicSimilarity], result of:
        0.02171461 = score(doc=4853,freq=1.0), product of:
          0.071587205 = queryWeight, product of:
            1.070083 = boost
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.017230242 = queryNorm
          0.30333087 = fieldWeight in 4853, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.882635 = idf(docFreq=2486, maxDocs=44421)
            0.078125 = fieldNorm(doc=4853)
      0.087737225 = weight(abstract_txt:kontext in 4853) [ClassicSimilarity], result of:
        0.087737225 = score(doc=4853,freq=1.0), product of:
          0.18160313 = queryWeight, product of:
            1.7043604 = boost
            6.184015 = idf(docFreq=248, maxDocs=44421)
            0.017230242 = queryNorm
          0.48312616 = fieldWeight in 4853, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.184015 = idf(docFreq=248, maxDocs=44421)
            0.078125 = fieldNorm(doc=4853)
      0.18411957 = weight(abstract_txt:relevanter in 4853) [ClassicSimilarity], result of:
        0.18411957 = score(doc=4853,freq=1.0), product of:
          0.2976693 = queryWeight, product of:
            2.1820605 = boost
            7.917278 = idf(docFreq=43, maxDocs=44421)
            0.017230242 = queryNorm
          0.6185373 = fieldWeight in 4853, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.917278 = idf(docFreq=43, maxDocs=44421)
            0.078125 = fieldNorm(doc=4853)
    0.2 = coord(5/25)