Document (#20650)

Author

Cohausz, H.B.

Title

Recherchen in Patentdatenbanken : ein Vergleich der Patentdatenbanken, insbesondere PATDPA und PATOS

Source

Deutscher Dokumentartag 1986, Freiburg, 8.-10.10.1986: Bedarfsorientierte Fachinformation: Methoden und Techniken am Arbeitsplatz. Bearb.: H. Strohl-Goebel

Imprint

Weinheim : VCH

Year

1986

Pages

S.395-406

Field

Patentinformation

Object

PATDPA
PATOS

Similar documents (content)

1. Thomä, E.; Tribian, R.: Entwicklungen bei Patentdatenbanken (1995) 0.62

   0.61980027 = sum of:
     0.61980027 = product of:
       1.2396005 = sum of:
         0.10646676 = weight(abstract_txt:insbesondere in 2479) [ClassicSimilarity], result of:
           0.10646676 = score(doc=2479,freq=1.0), product of:
             0.15242785 = queryWeight, product of:
               5.5877852 = idf(docFreq=451, maxDocs=44421)
               0.02727876 = queryNorm
             0.69847316 = fieldWeight in 2479, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5877852 = idf(docFreq=451, maxDocs=44421)
               0.125 = fieldNorm(doc=2479)
         1.1331338 = weight(abstract_txt:patentdatenbanken in 2479) [ClassicSimilarity], result of:
           1.1331338 = score(doc=2479,freq=1.0), product of:
             0.92922115 = queryWeight, product of:
               3.4917438 = boost
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.02727876 = queryNorm
             1.2194446 = fieldWeight in 2479, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.125 = fieldNorm(doc=2479)
       0.5 = coord(2/4)
   

2. Birkner, M.: Patentdatenbanken: kostenpflichtige mit Mehrwert oder kostenfreie? (2010) 0.57

   0.5733632 = sum of:
     0.5733632 = product of:
       1.1467264 = sum of:
         0.14516817 = weight(abstract_txt:recherchen in 628) [ClassicSimilarity], result of:
           0.14516817 = score(doc=628,freq=1.0), product of:
             0.25639874 = queryWeight, product of:
               1.2969576 = boost
               7.2471204 = idf(docFreq=85, maxDocs=44421)
               0.02727876 = queryNorm
             0.5661813 = fieldWeight in 628, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2471204 = idf(docFreq=85, maxDocs=44421)
               0.078125 = fieldNorm(doc=628)
         1.0015582 = weight(abstract_txt:patentdatenbanken in 628) [ClassicSimilarity], result of:
           1.0015582 = score(doc=628,freq=2.0), product of:
             0.92922115 = queryWeight, product of:
               3.4917438 = boost
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.02727876 = queryNorm
             1.077847 = fieldWeight in 628, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.078125 = fieldNorm(doc=628)
       0.5 = coord(2/4)
   

3. STN International: Information digital : Online-Zugriff auf britische Patente (2005) 0.40

   0.40135422 = sum of:
     0.40135422 = product of:
       0.80270845 = sum of:
         0.101617716 = weight(abstract_txt:recherchen in 4428) [ClassicSimilarity], result of:
           0.101617716 = score(doc=4428,freq=1.0), product of:
             0.25639874 = queryWeight, product of:
               1.2969576 = boost
               7.2471204 = idf(docFreq=85, maxDocs=44421)
               0.02727876 = queryNorm
             0.3963269 = fieldWeight in 4428, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2471204 = idf(docFreq=85, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4428)
         0.70109075 = weight(abstract_txt:patentdatenbanken in 4428) [ClassicSimilarity], result of:
           0.70109075 = score(doc=4428,freq=2.0), product of:
             0.92922115 = queryWeight, product of:
               3.4917438 = boost
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.02727876 = queryNorm
             0.7544929 = fieldWeight in 4428, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.0546875 = fieldNorm(doc=4428)
       0.5 = coord(2/4)
   

4. Grummann, M.: Sind Verfahren zur maschinellen Indexierung für Literaturbestände Öffentlicher Bibliotheken geeignet? : Retrievaltests von indexierten ekz-Daten mit der Software IDX (2000) 0.18

   0.18134719 = sum of:
     0.18134719 = product of:
       0.36269438 = sum of:
         0.15945897 = weight(abstract_txt:vergleich in 2879) [ClassicSimilarity], result of:
           0.15945897 = score(doc=2879,freq=1.0), product of:
             0.21811335 = queryWeight, product of:
               1.1962142 = boost
               6.684188 = idf(docFreq=150, maxDocs=44421)
               0.02727876 = queryNorm
             0.73108304 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.684188 = idf(docFreq=150, maxDocs=44421)
               0.109375 = fieldNorm(doc=2879)
         0.20323543 = weight(abstract_txt:recherchen in 2879) [ClassicSimilarity], result of:
           0.20323543 = score(doc=2879,freq=1.0), product of:
             0.25639874 = queryWeight, product of:
               1.2969576 = boost
               7.2471204 = idf(docFreq=85, maxDocs=44421)
               0.02727876 = queryNorm
             0.7926538 = fieldWeight in 2879, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.2471204 = idf(docFreq=85, maxDocs=44421)
               0.109375 = fieldNorm(doc=2879)
       0.5 = coord(2/4)
   

5. STN baut Patentinformation aus (2004) 0.18

   0.17527269 = sum of:
     0.17527269 = product of:
       0.70109075 = sum of:
         0.70109075 = weight(abstract_txt:patentdatenbanken in 3304) [ClassicSimilarity], result of:
           0.70109075 = score(doc=3304,freq=2.0), product of:
             0.92922115 = queryWeight, product of:
               3.4917438 = boost
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.02727876 = queryNorm
             0.7544929 = fieldWeight in 3304, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               9.755557 = idf(docFreq=6, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3304)
       0.25 = coord(1/4)