Document (#2322)

Author
Panyr, J.
Title
Vektorraum-Modell und Clusteranalyse in Information-Retrieval-Systemen
Source
Nachrichten für Dokumentation. 38(1987) H.1, S.13-20
Year
1987
Abstract
Ausgehend von theoretischen Indexierungsansätzen wird das klassische Vektorraum-Modell für automatische Indexierung (mit dem Trennschärfen-Modell) erläutert. Das Clustering in Information-Retrieval-Systemem wird als eine natürliche logische Folge aus diesem Modell aufgefaßt und in allen seinen Ausprägungen (d.h. als Dokumenten-, Term- oder Dokumenten- und Termklassifikation) behandelt. Anschließend werden die Suchstrategien in vorklassifizierten Dokumentenbeständen (Clustersuche) detailliert beschrieben. Zum Schluß wird noch die sinnvolle Anwendung der Clusteranalyse in Information-Retrieval-Systemen kurz diskutiert
Theme
Automatisches Indexieren
Automatisches Klassifizieren

Similar documents (author)

  1. Panyr, J.: Thesaurus und wissensbasierte Systeme - Thesauri und Wissensbasen (1988) 5.47
    5.4731426 = sum of:
      5.4731426 = weight(author_txt:panyr in 22) [ClassicSimilarity], result of:
        5.4731426 = fieldWeight in 22, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.757029 = idf(docFreq=18, maxDocs=44421)
          0.625 = fieldNorm(doc=22)
    
  2. Panyr, J.: Information-Retrieval-Methoden in regelbasierten Expertensystemen (1990) 5.47
    5.4731426 = sum of:
      5.4731426 = weight(author_txt:panyr in 259) [ClassicSimilarity], result of:
        5.4731426 = fieldWeight in 259, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.757029 = idf(docFreq=18, maxDocs=44421)
          0.625 = fieldNorm(doc=259)
    
  3. Panyr, J.: Vom Wissen zur Information : Notwendigkeit der Kooperation der Fachleute aus dem Bereich der Informations-Retrieval-Systeme und der Systeme mit formaler Intelligenz (1988) 5.47
    5.4731426 = sum of:
      5.4731426 = weight(author_txt:panyr in 767) [ClassicSimilarity], result of:
        5.4731426 = fieldWeight in 767, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.757029 = idf(docFreq=18, maxDocs=44421)
          0.625 = fieldNorm(doc=767)
    
  4. Panyr, J.: ¬Die Theorie der Fuzzy-Mengen und Information-Retrieval-Systeme (1986) 5.47
    5.4731426 = sum of:
      5.4731426 = weight(author_txt:panyr in 787) [ClassicSimilarity], result of:
        5.4731426 = fieldWeight in 787, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.757029 = idf(docFreq=18, maxDocs=44421)
          0.625 = fieldNorm(doc=787)
    
  5. Panyr, J.: Probabilistische Modelle in Information-Retrieval-Systemen (1986) 5.47
    5.4731426 = sum of:
      5.4731426 = weight(author_txt:panyr in 1459) [ClassicSimilarity], result of:
        5.4731426 = fieldWeight in 1459, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.757029 = idf(docFreq=18, maxDocs=44421)
          0.625 = fieldNorm(doc=1459)
    

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) 0.19
    0.18802933 = sum of:
      0.18802933 = product of:
        0.5223037 = sum of:
          0.02211781 = weight(abstract_txt:behandelt in 284) [ClassicSimilarity], result of:
            0.02211781 = score(doc=284,freq=1.0), product of:
              0.11400188 = queryWeight, product of:
                6.208406 = idf(docFreq=242, maxDocs=44421)
                0.018362503 = queryNorm
              0.19401269 = fieldWeight in 284, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.208406 = idf(docFreq=242, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.06993327 = weight(abstract_txt:indexierung in 284) [ClassicSimilarity], result of:
            0.06993327 = score(doc=284,freq=6.0), product of:
              0.13515209 = queryWeight, product of:
                1.0888182 = boost
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.018362503 = queryNorm
              0.51744133 = fieldWeight in 284, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.03065924 = weight(abstract_txt:automatische in 284) [ClassicSimilarity], result of:
            0.03065924 = score(doc=284,freq=1.0), product of:
              0.14172882 = queryWeight, product of:
                1.1149954 = boost
                6.922344 = idf(docFreq=118, maxDocs=44421)
                0.018362503 = queryNorm
              0.21632326 = fieldWeight in 284, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.922344 = idf(docFreq=118, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.014149732 = weight(abstract_txt:information in 284) [ClassicSimilarity], result of:
            0.014149732 = score(doc=284,freq=13.0), product of:
              0.051916894 = queryWeight, product of:
                1.1688505 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.018362503 = 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)
          0.032952987 = weight(abstract_txt:retrieval in 284) [ClassicSimilarity], result of:
            0.032952987 = score(doc=284,freq=8.0), product of:
              0.107240185 = queryWeight, product of:
                1.6798999 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.018362503 = queryNorm
              0.3072821 = fieldWeight in 284, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.03329395 = weight(abstract_txt:wird in 284) [ClassicSimilarity], result of:
            0.03329395 = score(doc=284,freq=5.0), product of:
              0.12629259 = queryWeight, product of:
                1.8230289 = boost
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.018362503 = queryNorm
              0.26362553 = fieldWeight in 284, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.1185969 = weight(abstract_txt:systemen in 284) [ClassicSimilarity], result of:
            0.1185969 = score(doc=284,freq=6.0), product of:
              0.2421544 = queryWeight, product of:
                2.061129 = boost
                6.398163 = idf(docFreq=200, maxDocs=44421)
                0.018362503 = queryNorm
              0.48975733 = fieldWeight in 284, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                6.398163 = idf(docFreq=200, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.0989288 = weight(abstract_txt:dokumenten in 284) [ClassicSimilarity], result of:
            0.0989288 = score(doc=284,freq=4.0), product of:
              0.24563435 = queryWeight, product of:
                2.0758862 = boost
                6.443972 = idf(docFreq=191, maxDocs=44421)
                0.018362503 = queryNorm
              0.40274826 = fieldWeight in 284, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.443972 = idf(docFreq=191, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
          0.10167102 = weight(abstract_txt:modell in 284) [ClassicSimilarity], result of:
            0.10167102 = score(doc=284,freq=1.0), product of:
              0.5003056 = queryWeight, product of:
                4.1897845 = boost
                6.5029707 = idf(docFreq=180, maxDocs=44421)
                0.018362503 = queryNorm
              0.20321783 = fieldWeight in 284, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5029707 = idf(docFreq=180, maxDocs=44421)
                0.03125 = fieldNorm(doc=284)
        0.36 = coord(9/25)
    
  2. Panyr, J.: Probabilistische Modelle in Information-Retrieval-Systemen (1986) 0.19
    0.18618105 = sum of:
      0.18618105 = product of:
        0.7757544 = sum of:
          0.09180727 = weight(abstract_txt:kurz in 1459) [ClassicSimilarity], result of:
            0.09180727 = score(doc=1459,freq=1.0), product of:
              0.12772912 = queryWeight, product of:
                1.0584954 = boost
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.018362503 = queryNorm
              0.7187654 = fieldWeight in 1459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.109375 = fieldNorm(doc=1459)
          0.09992549 = weight(abstract_txt:indexierung in 1459) [ClassicSimilarity], result of:
            0.09992549 = score(doc=1459,freq=1.0), product of:
              0.13515209 = queryWeight, product of:
                1.0888182 = boost
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.018362503 = queryNorm
              0.73935586 = fieldWeight in 1459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.109375 = fieldNorm(doc=1459)
          0.10188062 = weight(abstract_txt:ausgehend in 1459) [ClassicSimilarity], result of:
            0.10188062 = score(doc=1459,freq=1.0), product of:
              0.13690929 = queryWeight, product of:
                1.0958736 = boost
                6.803628 = idf(docFreq=133, maxDocs=44421)
                0.018362503 = queryNorm
              0.7441468 = fieldWeight in 1459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.803628 = idf(docFreq=133, maxDocs=44421)
                0.109375 = fieldNorm(doc=1459)
          0.15656614 = weight(abstract_txt:detailliert in 1459) [ClassicSimilarity], result of:
            0.15656614 = score(doc=1459,freq=1.0), product of:
              0.18232118 = queryWeight, product of:
                1.2646273 = boost
                7.85132 = idf(docFreq=46, maxDocs=44421)
                0.018362503 = queryNorm
              0.8587381 = fieldWeight in 1459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.85132 = idf(docFreq=46, maxDocs=44421)
                0.109375 = fieldNorm(doc=1459)
          0.23531206 = weight(abstract_txt:schluß in 1459) [ClassicSimilarity], result of:
            0.23531206 = score(doc=1459,freq=1.0), product of:
              0.23922212 = queryWeight, product of:
                1.4485873 = boost
                8.993418 = idf(docFreq=14, maxDocs=44421)
                0.018362503 = queryNorm
              0.9836551 = fieldWeight in 1459, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.993418 = idf(docFreq=14, maxDocs=44421)
                0.109375 = fieldNorm(doc=1459)
          0.09026283 = weight(abstract_txt:wird in 1459) [ClassicSimilarity], result of:
            0.09026283 = score(doc=1459,freq=3.0), product of:
              0.12629259 = queryWeight, product of:
                1.8230289 = boost
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.018362503 = queryNorm
              0.714712 = fieldWeight in 1459, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.109375 = fieldNorm(doc=1459)
        0.24 = coord(6/25)
    
  3. Fuhr, N.: Theorie des Information Retrieval I : Modelle (2004) 0.15
    0.14601591 = sum of:
      0.14601591 = product of:
        0.6083996 = sum of:
          0.05710028 = weight(abstract_txt:indexierung in 3912) [ClassicSimilarity], result of:
            0.05710028 = score(doc=3912,freq=1.0), product of:
              0.13515209 = queryWeight, product of:
                1.0888182 = boost
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.018362503 = queryNorm
              0.42248908 = fieldWeight in 3912, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.0625 = fieldNorm(doc=3912)
          0.00784886 = weight(abstract_txt:information in 3912) [ClassicSimilarity], result of:
            0.00784886 = score(doc=3912,freq=1.0), product of:
              0.051916894 = queryWeight, product of:
                1.1688505 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.018362503 = 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)
          0.032952987 = weight(abstract_txt:retrieval in 3912) [ClassicSimilarity], result of:
            0.032952987 = score(doc=3912,freq=2.0), product of:
              0.107240185 = queryWeight, product of:
                1.6798999 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.018362503 = queryNorm
              0.3072821 = fieldWeight in 3912, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.0625 = fieldNorm(doc=3912)
          0.05157876 = weight(abstract_txt:wird in 3912) [ClassicSimilarity], result of:
            0.05157876 = score(doc=3912,freq=3.0), product of:
              0.12629259 = queryWeight, product of:
                1.8230289 = boost
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.018362503 = queryNorm
              0.40840688 = fieldWeight in 3912, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.0625 = fieldNorm(doc=3912)
          0.17134972 = weight(abstract_txt:dokumenten in 3912) [ClassicSimilarity], result of:
            0.17134972 = score(doc=3912,freq=3.0), product of:
              0.24563435 = queryWeight, product of:
                2.0758862 = boost
                6.443972 = idf(docFreq=191, maxDocs=44421)
                0.018362503 = queryNorm
              0.69758046 = fieldWeight in 3912, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.443972 = idf(docFreq=191, maxDocs=44421)
                0.0625 = fieldNorm(doc=3912)
          0.28756908 = weight(abstract_txt:modell in 3912) [ClassicSimilarity], result of:
            0.28756908 = score(doc=3912,freq=2.0), product of:
              0.5003056 = queryWeight, product of:
                4.1897845 = boost
                6.5029707 = idf(docFreq=180, maxDocs=44421)
                0.018362503 = queryNorm
              0.57478684 = fieldWeight in 3912, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.5029707 = idf(docFreq=180, maxDocs=44421)
                0.0625 = fieldNorm(doc=3912)
        0.24 = coord(6/25)
    
  4. Siebenlist, T.: MEMOSE. Spezialsuchmaschine für emotional geladene Dokumente (2012) 0.13
    0.12653717 = sum of:
      0.12653717 = product of:
        0.52723825 = sum of:
          0.07869194 = weight(abstract_txt:kurz in 1175) [ClassicSimilarity], result of:
            0.07869194 = score(doc=1175,freq=1.0), product of:
              0.12772912 = queryWeight, product of:
                1.0584954 = boost
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.018362503 = queryNorm
              0.6160846 = fieldWeight in 1175, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.571569 = idf(docFreq=168, maxDocs=44421)
                0.09375 = fieldNorm(doc=1175)
          0.08565042 = weight(abstract_txt:indexierung in 1175) [ClassicSimilarity], result of:
            0.08565042 = score(doc=1175,freq=1.0), product of:
              0.13515209 = queryWeight, product of:
                1.0888182 = boost
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.018362503 = queryNorm
              0.63373363 = fieldWeight in 1175, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.759825 = idf(docFreq=139, maxDocs=44421)
                0.09375 = fieldNorm(doc=1175)
          0.011773289 = weight(abstract_txt:information in 1175) [ClassicSimilarity], result of:
            0.011773289 = score(doc=1175,freq=1.0), product of:
              0.051916894 = queryWeight, product of:
                1.1688505 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.018362503 = queryNorm
              0.22677183 = fieldWeight in 1175, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.09375 = fieldNorm(doc=1175)
          0.049429484 = weight(abstract_txt:retrieval in 1175) [ClassicSimilarity], result of:
            0.049429484 = score(doc=1175,freq=2.0), product of:
              0.107240185 = queryWeight, product of:
                1.6798999 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.018362503 = queryNorm
              0.46092314 = fieldWeight in 1175, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.09375 = fieldNorm(doc=1175)
          0.044668518 = weight(abstract_txt:wird in 1175) [ClassicSimilarity], result of:
            0.044668518 = score(doc=1175,freq=1.0), product of:
              0.12629259 = queryWeight, product of:
                1.8230289 = boost
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.018362503 = queryNorm
              0.35369074 = fieldWeight in 1175, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.09375 = fieldNorm(doc=1175)
          0.2570246 = weight(abstract_txt:dokumenten in 1175) [ClassicSimilarity], result of:
            0.2570246 = score(doc=1175,freq=3.0), product of:
              0.24563435 = queryWeight, product of:
                2.0758862 = boost
                6.443972 = idf(docFreq=191, maxDocs=44421)
                0.018362503 = queryNorm
              1.0463707 = fieldWeight in 1175, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.443972 = idf(docFreq=191, maxDocs=44421)
                0.09375 = fieldNorm(doc=1175)
        0.24 = coord(6/25)
    
  5. Markscheffel, B.: ¬Eine Entwurfsmethodik für Hypermedia-Systeme auf Basis des Spatial-Satellite-Modells S**2M (1993) 0.12
    0.12212373 = sum of:
      0.12212373 = product of:
        0.76327336 = sum of:
          0.12349795 = weight(abstract_txt:ausgehend in 3244) [ClassicSimilarity], result of:
            0.12349795 = score(doc=3244,freq=2.0), product of:
              0.13690929 = queryWeight, product of:
                1.0958736 = boost
                6.803628 = idf(docFreq=133, maxDocs=44421)
                0.018362503 = queryNorm
              0.90204215 = fieldWeight in 3244, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.803628 = idf(docFreq=133, maxDocs=44421)
                0.09375 = fieldNorm(doc=3244)
          0.06317083 = weight(abstract_txt:wird in 3244) [ClassicSimilarity], result of:
            0.06317083 = score(doc=3244,freq=2.0), product of:
              0.12629259 = queryWeight, product of:
                1.8230289 = boost
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.018362503 = queryNorm
              0.50019425 = fieldWeight in 3244, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7727013 = idf(docFreq=2775, maxDocs=44421)
                0.09375 = fieldNorm(doc=3244)
          0.14525093 = weight(abstract_txt:systemen in 3244) [ClassicSimilarity], result of:
            0.14525093 = score(doc=3244,freq=1.0), product of:
              0.2421544 = queryWeight, product of:
                2.061129 = boost
                6.398163 = idf(docFreq=200, maxDocs=44421)
                0.018362503 = queryNorm
              0.59982777 = fieldWeight in 3244, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.398163 = idf(docFreq=200, maxDocs=44421)
                0.09375 = fieldNorm(doc=3244)
          0.4313536 = weight(abstract_txt:modell in 3244) [ClassicSimilarity], result of:
            0.4313536 = score(doc=3244,freq=2.0), product of:
              0.5003056 = queryWeight, product of:
                4.1897845 = boost
                6.5029707 = idf(docFreq=180, maxDocs=44421)
                0.018362503 = queryNorm
              0.86218023 = fieldWeight in 3244, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.5029707 = idf(docFreq=180, maxDocs=44421)
                0.09375 = fieldNorm(doc=3244)
        0.16 = coord(4/25)