Document (#11595)

Author
Kübel, E.
Title
Schwarze Löcher - nicht nur im Weltall : Lücken in Patentdatenbanken: eine Ergänzung
Source
Cogito. 12(1996) H.3, S.4-10
Year
1996
Abstract
In Cogito 1990, H.1 (S.35 ff.) wurden vom Autor Fallstricke bei der Patentrecherche aufgezeigt. Die damals gesammelten Probleme sind leider heute noch genauso aktuell wie 1990. Im Rahmen des seit April 1995 laufenden INSTI-Projektes des BMBW wurde dieses Thema gar zu einem zweitägigen Seminar zur Qualitätssicherung im Bereich der Patentrecherche ausgeweitet. Unser Artikel gibt - zusammen mit dem vorgenannten Artikel von 1990 - einen Überblick über den aktuellen Stand der wichtigsten Fallstricke für den Rechercheur
Field
Patentinformation

Similar documents (content)

  1. Pfister, J.: Clustering von Patent-Dokumenten am Beispiel der Datenbanken des Fachinformationszentrums Karlsruhe (2006) 0.06
    0.060283184 = sum of:
      0.060283184 = product of:
        0.7535398 = sum of:
          0.11831682 = weight(abstract_txt:artikel in 977) [ClassicSimilarity], result of:
            0.11831682 = score(doc=977,freq=1.0), product of:
              0.16770159 = queryWeight, product of:
                1.8272759 = boost
                5.64416 = idf(docFreq=415, maxDocs=43254)
                0.016260494 = queryNorm
              0.70552 = fieldWeight in 977, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.64416 = idf(docFreq=415, maxDocs=43254)
                0.125 = fieldNorm(doc=977)
          0.635223 = weight(abstract_txt:patentrecherche in 977) [ClassicSimilarity], result of:
            0.635223 = score(doc=977,freq=1.0), product of:
              0.51419 = queryWeight, product of:
                3.1996124 = boost
                9.883085 = idf(docFreq=5, maxDocs=43254)
                0.016260494 = queryNorm
              1.2353857 = fieldWeight in 977, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.883085 = idf(docFreq=5, maxDocs=43254)
                0.125 = fieldNorm(doc=977)
        0.08 = coord(2/25)
    
  2. Czermak, J.M.: Zwischenbilanz zum Fachinformationsprogramm der Bundesregierung 1990-1994 (1993) 0.05
    0.05143061 = sum of:
      0.05143061 = product of:
        0.64288265 = sum of:
          0.39612427 = weight(abstract_txt:cogito in 5342) [ClassicSimilarity], result of:
            0.39612427 = score(doc=5342,freq=2.0), product of:
              0.2364325 = queryWeight, product of:
                1.5341723 = boost
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.016260494 = queryNorm
              1.6754223 = fieldWeight in 5342, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.47762 = idf(docFreq=8, maxDocs=43254)
                0.125 = fieldNorm(doc=5342)
          0.24675836 = weight(abstract_txt:1990 in 5342) [ClassicSimilarity], result of:
            0.24675836 = score(doc=5342,freq=1.0), product of:
              0.3133655 = queryWeight, product of:
                3.0591922 = boost
                6.2995667 = idf(docFreq=215, maxDocs=43254)
                0.016260494 = queryNorm
              0.78744584 = fieldWeight in 5342, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2995667 = idf(docFreq=215, maxDocs=43254)
                0.125 = fieldNorm(doc=5342)
        0.08 = coord(2/25)
    
  3. Göbel, R.; Müller-Bader, P.: Wirtschaftsinformationen : ein Überblick über Angebot und Lücken auf dem deutschen CD-ROM-Markt (1994) 0.05
    0.049972612 = sum of:
      0.049972612 = product of:
        0.41643846 = sum of:
          0.077218905 = weight(abstract_txt:unser in 179) [ClassicSimilarity], result of:
            0.077218905 = score(doc=179,freq=1.0), product of:
              0.109472886 = queryWeight, product of:
                1.0439359 = boost
                6.449098 = idf(docFreq=185, maxDocs=43254)
                0.016260494 = queryNorm
              0.7053701 = fieldWeight in 179, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.449098 = idf(docFreq=185, maxDocs=43254)
                0.109375 = fieldNorm(doc=179)
          0.1402329 = weight(abstract_txt:genauso in 179) [ClassicSimilarity], result of:
            0.1402329 = score(doc=179,freq=1.0), product of:
              0.16295116 = queryWeight, product of:
                1.2736475 = boost
                7.8681827 = idf(docFreq=44, maxDocs=43254)
                0.016260494 = queryNorm
              0.8605825 = fieldWeight in 179, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.8681827 = idf(docFreq=44, maxDocs=43254)
                0.109375 = fieldNorm(doc=179)
          0.19898663 = weight(abstract_txt:lücken in 179) [ClassicSimilarity], result of:
            0.19898663 = score(doc=179,freq=1.0), product of:
              0.2057659 = queryWeight, product of:
                1.4312228 = boost
                8.841632 = idf(docFreq=16, maxDocs=43254)
                0.016260494 = queryNorm
              0.9670535 = fieldWeight in 179, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.841632 = idf(docFreq=16, maxDocs=43254)
                0.109375 = fieldNorm(doc=179)
        0.12 = coord(3/25)
    
  4. Klas, C.-P.; Kriewel, S.; Schaefer, A.; Fischer, G.: ¬Das DAFFODIL System : strategische Literaturrecherche in Digitalen Bibliotheken (2006) 0.04
    0.043926153 = sum of:
      0.043926153 = product of:
        0.3660513 = sum of:
          0.097156085 = weight(abstract_txt:aktuellen in 15) [ClassicSimilarity], result of:
            0.097156085 = score(doc=15,freq=1.0), product of:
              0.100585684 = queryWeight, product of:
                1.0006648 = boost
                6.1817837 = idf(docFreq=242, maxDocs=43254)
                0.016260494 = queryNorm
              0.9659037 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.1817837 = idf(docFreq=242, maxDocs=43254)
                0.15625 = fieldNorm(doc=15)
          0.12099918 = weight(abstract_txt:aufgezeigt in 15) [ClassicSimilarity], result of:
            0.12099918 = score(doc=15,freq=1.0), product of:
              0.11643346 = queryWeight, product of:
                1.0766126 = boost
                6.6509643 = idf(docFreq=151, maxDocs=43254)
                0.016260494 = queryNorm
              1.0392132 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.6509643 = idf(docFreq=151, maxDocs=43254)
                0.15625 = fieldNorm(doc=15)
          0.14789602 = weight(abstract_txt:artikel in 15) [ClassicSimilarity], result of:
            0.14789602 = score(doc=15,freq=1.0), product of:
              0.16770159 = queryWeight, product of:
                1.8272759 = boost
                5.64416 = idf(docFreq=415, maxDocs=43254)
                0.016260494 = queryNorm
              0.88189995 = fieldWeight in 15, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.64416 = idf(docFreq=415, maxDocs=43254)
                0.15625 = fieldNorm(doc=15)
        0.12 = coord(3/25)
    
  5. Battelle, J.: ¬Die Suche : Geschäftsleben und Kultur im Banne von Google & Co. (2006) 0.04
    0.041556776 = sum of:
      0.041556776 = product of:
        0.25972986 = sum of:
          0.035518087 = weight(abstract_txt:autor in 957) [ClassicSimilarity], result of:
            0.035518087 = score(doc=957,freq=1.0), product of:
              0.103548504 = queryWeight, product of:
                1.0152955 = boost
                6.2721677 = idf(docFreq=221, maxDocs=43254)
                0.016260494 = queryNorm
              0.34300917 = fieldWeight in 957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2721677 = idf(docFreq=221, maxDocs=43254)
                0.0546875 = fieldNorm(doc=957)
          0.054602005 = weight(abstract_txt:unser in 957) [ClassicSimilarity], result of:
            0.054602005 = score(doc=957,freq=2.0), product of:
              0.109472886 = queryWeight, product of:
                1.0439359 = boost
                6.449098 = idf(docFreq=185, maxDocs=43254)
                0.016260494 = queryNorm
              0.49877197 = fieldWeight in 957, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.449098 = idf(docFreq=185, maxDocs=43254)
                0.0546875 = fieldNorm(doc=957)
          0.07011645 = weight(abstract_txt:genauso in 957) [ClassicSimilarity], result of:
            0.07011645 = score(doc=957,freq=1.0), product of:
              0.16295116 = queryWeight, product of:
                1.2736475 = boost
                7.8681827 = idf(docFreq=44, maxDocs=43254)
                0.016260494 = queryNorm
              0.43029124 = fieldWeight in 957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.8681827 = idf(docFreq=44, maxDocs=43254)
                0.0546875 = fieldNorm(doc=957)
          0.09949332 = weight(abstract_txt:gesammelten in 957) [ClassicSimilarity], result of:
            0.09949332 = score(doc=957,freq=1.0), product of:
              0.2057659 = queryWeight, product of:
                1.4312228 = boost
                8.841632 = idf(docFreq=16, maxDocs=43254)
                0.016260494 = queryNorm
              0.48352674 = fieldWeight in 957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.841632 = idf(docFreq=16, maxDocs=43254)
                0.0546875 = fieldNorm(doc=957)
        0.16 = coord(4/25)