Document (#26608)

Author

Thielen, J. van

Title

Online classification and indexation of documents at the European Patent Office

Source

World patent information. 20(1998) no.1, S.17-20

Year

1998

Abstract

The patent documentation at the European Patent Office (EPO) is organized according to the 120.000 subdivisions of the EPO's internal classification scheme (ECLA). In some fields, indexing schemes such as In Computer Only codes (ICO) provide additional ways of accessing the documentation. To meet the needs of patent examiners it was decided to develop a new DOCumentation TOOL (DOCTOOL). This tool would make it possible for examiners to enter their indexing codes directly online at their workplace and would, in addition to the existing ECLA and ICO schemes, also provide the possibility to assign keywords and free text to documents

Theme

Klassifikationssysteme im Online-Retrieval

Field

Patentinformation

Object

ECLA
ICO

Similar documents (content)

1. Rampelmann, J.: Classification tools at the EPO (1996) 0.81

   0.80998635 = sum of:
     0.80998635 = product of:
       1.6874716 = sum of:
         0.0472046 = weight(abstract_txt:internal in 3655) [ClassicSimilarity], result of:
           0.0472046 = score(doc=3655,freq=1.0), product of:
             0.09745136 = queryWeight, product of:
               6.2002096 = idf(docFreq=244, maxDocs=44421)
               0.01571743 = queryNorm
             0.4843914 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2002096 = idf(docFreq=244, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.019492364 = weight(abstract_txt:online in 3655) [ClassicSimilarity], result of:
           0.019492364 = score(doc=3655,freq=1.0), product of:
             0.06808499 = queryWeight, product of:
               1.1820797 = boost
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.01571743 = queryNorm
             0.28629458 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.08344276 = weight(abstract_txt:subdivisions in 3655) [ClassicSimilarity], result of:
           0.08344276 = score(doc=3655,freq=1.0), product of:
             0.14247024 = queryWeight, product of:
               1.2091165 = boost
               7.496775 = idf(docFreq=66, maxDocs=44421)
               0.01571743 = queryNorm
             0.58568555 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.496775 = idf(docFreq=66, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.05040212 = weight(abstract_txt:classification in 3655) [ClassicSimilarity], result of:
           0.05040212 = score(doc=3655,freq=4.0), product of:
             0.08080178 = queryWeight, product of:
               1.2877498 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.01571743 = queryNorm
             0.6237749 = fieldWeight in 3655, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.039269187 = weight(abstract_txt:documents in 3655) [ClassicSimilarity], result of:
           0.039269187 = score(doc=3655,freq=2.0), product of:
             0.08619849 = queryWeight, product of:
               1.3300589 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.01571743 = queryNorm
             0.455567 = fieldWeight in 3655, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.03261036 = weight(abstract_txt:indexing in 3655) [ClassicSimilarity], result of:
           0.03261036 = score(doc=3655,freq=1.0), product of:
             0.0959501 = queryWeight, product of:
               1.4032781 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.01571743 = queryNorm
             0.33986792 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.048017494 = weight(abstract_txt:tool in 3655) [ClassicSimilarity], result of:
           0.048017494 = score(doc=3655,freq=1.0), product of:
             0.12418658 = queryWeight, product of:
               1.5964613 = boost
               4.9491973 = idf(docFreq=855, maxDocs=44421)
               0.01571743 = queryNorm
             0.38665605 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9491973 = idf(docFreq=855, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.10347076 = weight(abstract_txt:european in 3655) [ClassicSimilarity], result of:
           0.10347076 = score(doc=3655,freq=2.0), product of:
             0.164441 = queryWeight, product of:
               1.8370717 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.01571743 = queryNorm
             0.6292272 = fieldWeight in 3655, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.1158986 = weight(abstract_txt:office in 3655) [ClassicSimilarity], result of:
           0.1158986 = score(doc=3655,freq=1.0), product of:
             0.22345693 = queryWeight, product of:
               2.1414995 = boost
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.01571743 = queryNorm
             0.5186619 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.11618207 = weight(abstract_txt:documentation in 3655) [ClassicSimilarity], result of:
           0.11618207 = score(doc=3655,freq=1.0), product of:
             0.25621125 = queryWeight, product of:
               2.808444 = boost
               5.8043137 = idf(docFreq=363, maxDocs=44421)
               0.01571743 = queryNorm
             0.453462 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8043137 = idf(docFreq=363, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.38545862 = weight(abstract_txt:examiners in 3655) [ClassicSimilarity], result of:
           0.38545862 = score(doc=3655,freq=1.0), product of:
             0.49788252 = queryWeight, product of:
               3.1965718 = boost
               9.909708 = idf(docFreq=5, maxDocs=44421)
               0.01571743 = queryNorm
             0.7741959 = fieldWeight in 3655, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.909708 = idf(docFreq=5, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
         0.6460226 = weight(abstract_txt:patent in 3655) [ClassicSimilarity], result of:
           0.6460226 = score(doc=3655,freq=6.0), product of:
             0.48707938 = queryWeight, product of:
               4.4713216 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.01571743 = queryNorm
             1.326319 = fieldWeight in 3655, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.078125 = fieldNorm(doc=3655)
       0.48 = coord(12/25)
   

2. Dickens, D.T.: ¬The ECLA classification system (1994) 0.42

   0.41821343 = sum of:
     0.41821343 = product of:
       1.306917 = sum of:
         0.066086434 = weight(abstract_txt:internal in 3645) [ClassicSimilarity], result of:
           0.066086434 = score(doc=3645,freq=1.0), product of:
             0.09745136 = queryWeight, product of:
               6.2002096 = idf(docFreq=244, maxDocs=44421)
               0.01571743 = queryNorm
             0.6781479 = fieldWeight in 3645, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2002096 = idf(docFreq=244, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.017371703 = weight(abstract_txt:their in 3645) [ClassicSimilarity], result of:
           0.017371703 = score(doc=3645,freq=1.0), product of:
             0.05038307 = queryWeight, product of:
               1.0168651 = boost
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.01571743 = queryNorm
             0.3447925 = fieldWeight in 3645, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1523883 = idf(docFreq=5161, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.027289312 = weight(abstract_txt:online in 3645) [ClassicSimilarity], result of:
           0.027289312 = score(doc=3645,freq=1.0), product of:
             0.06808499 = queryWeight, product of:
               1.1820797 = boost
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.01571743 = queryNorm
             0.40081245 = fieldWeight in 3645, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.061109323 = weight(abstract_txt:classification in 3645) [ClassicSimilarity], result of:
           0.061109323 = score(doc=3645,freq=3.0), product of:
             0.08080178 = queryWeight, product of:
               1.2877498 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.01571743 = queryNorm
             0.75628686 = fieldWeight in 3645, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.14485906 = weight(abstract_txt:european in 3645) [ClassicSimilarity], result of:
           0.14485906 = score(doc=3645,freq=2.0), product of:
             0.164441 = queryWeight, product of:
               1.8370717 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.01571743 = queryNorm
             0.88091815 = fieldWeight in 3645, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.1884134 = weight(abstract_txt:codes in 3645) [ClassicSimilarity], result of:
           0.1884134 = score(doc=3645,freq=2.0), product of:
             0.19593899 = queryWeight, product of:
               2.0053098 = boost
               6.2166705 = idf(docFreq=240, maxDocs=44421)
               0.01571743 = queryNorm
             0.96159214 = fieldWeight in 3645, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.2166705 = idf(docFreq=240, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.16225804 = weight(abstract_txt:office in 3645) [ClassicSimilarity], result of:
           0.16225804 = score(doc=3645,freq=1.0), product of:
             0.22345693 = queryWeight, product of:
               2.1414995 = boost
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.01571743 = queryNorm
             0.7261267 = fieldWeight in 3645, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
         0.6395297 = weight(abstract_txt:patent in 3645) [ClassicSimilarity], result of:
           0.6395297 = score(doc=3645,freq=3.0), product of:
             0.48707938 = queryWeight, product of:
               4.4713216 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.01571743 = queryNorm
             1.3129886 = fieldWeight in 3645, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.109375 = fieldNorm(doc=3645)
       0.32 = coord(8/25)
   

3. Wittmann, A.: Classifying and indexing of patent documents : a retired patent documentalist looks back (1994) 0.33

   0.3294217 = sum of:
     0.3294217 = product of:
       1.176506 = sum of:
         0.030241273 = weight(abstract_txt:classification in 1661) [ClassicSimilarity], result of:
           0.030241273 = score(doc=1661,freq=1.0), product of:
             0.08080178 = queryWeight, product of:
               1.2877498 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.01571743 = queryNorm
             0.37426496 = fieldWeight in 1661, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
         0.047123026 = weight(abstract_txt:documents in 1661) [ClassicSimilarity], result of:
           0.047123026 = score(doc=1661,freq=2.0), product of:
             0.08619849 = queryWeight, product of:
               1.3300589 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.01571743 = queryNorm
             0.54668045 = fieldWeight in 1661, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
         0.055341613 = weight(abstract_txt:indexing in 1661) [ClassicSimilarity], result of:
           0.055341613 = score(doc=1661,freq=2.0), product of:
             0.0959501 = queryWeight, product of:
               1.4032781 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.01571743 = queryNorm
             0.57677495 = fieldWeight in 1661, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
         0.057620987 = weight(abstract_txt:tool in 1661) [ClassicSimilarity], result of:
           0.057620987 = score(doc=1661,freq=1.0), product of:
             0.12418658 = queryWeight, product of:
               1.5964613 = boost
               4.9491973 = idf(docFreq=855, maxDocs=44421)
               0.01571743 = queryNorm
             0.46398723 = fieldWeight in 1661, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9491973 = idf(docFreq=855, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
         0.13907833 = weight(abstract_txt:office in 1661) [ClassicSimilarity], result of:
           0.13907833 = score(doc=1661,freq=1.0), product of:
             0.22345693 = queryWeight, product of:
               2.1414995 = boost
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.01571743 = queryNorm
             0.6223943 = fieldWeight in 1661, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
         0.13941848 = weight(abstract_txt:documentation in 1661) [ClassicSimilarity], result of:
           0.13941848 = score(doc=1661,freq=1.0), product of:
             0.25621125 = queryWeight, product of:
               2.808444 = boost
               5.8043137 = idf(docFreq=363, maxDocs=44421)
               0.01571743 = queryNorm
             0.5441544 = fieldWeight in 1661, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8043137 = idf(docFreq=363, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
         0.70768225 = weight(abstract_txt:patent in 1661) [ClassicSimilarity], result of:
           0.70768225 = score(doc=1661,freq=5.0), product of:
             0.48707938 = queryWeight, product of:
               4.4713216 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.01571743 = queryNorm
             1.4529095 = fieldWeight in 1661, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.09375 = fieldNorm(doc=1661)
       0.28 = coord(7/25)
   

4. Lawson, M.: Automatic extraction of citations from the text of English-language patents : an example of template mining (1996) 0.20

   0.20157023 = sum of:
     0.20157023 = product of:
       1.0078511 = sum of:
         0.03141535 = weight(abstract_txt:documents in 3654) [ClassicSimilarity], result of:
           0.03141535 = score(doc=3654,freq=2.0), product of:
             0.08619849 = queryWeight, product of:
               1.3300589 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.01571743 = queryNorm
             0.3644536 = fieldWeight in 3654, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=3654)
         0.0585319 = weight(abstract_txt:european in 3654) [ClassicSimilarity], result of:
           0.0585319 = score(doc=3654,freq=1.0), product of:
             0.164441 = queryWeight, product of:
               1.8370717 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.01571743 = queryNorm
             0.35594466 = fieldWeight in 3654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.0625 = fieldNorm(doc=3654)
         0.092718884 = weight(abstract_txt:office in 3654) [ClassicSimilarity], result of:
           0.092718884 = score(doc=3654,freq=1.0), product of:
             0.22345693 = queryWeight, product of:
               2.1414995 = boost
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.01571743 = queryNorm
             0.41492954 = fieldWeight in 3654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.0625 = fieldNorm(doc=3654)
         0.3083669 = weight(abstract_txt:examiners in 3654) [ClassicSimilarity], result of:
           0.3083669 = score(doc=3654,freq=1.0), product of:
             0.49788252 = queryWeight, product of:
               3.1965718 = boost
               9.909708 = idf(docFreq=5, maxDocs=44421)
               0.01571743 = queryNorm
             0.61935675 = fieldWeight in 3654, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.909708 = idf(docFreq=5, maxDocs=44421)
               0.0625 = fieldNorm(doc=3654)
         0.5168181 = weight(abstract_txt:patent in 3654) [ClassicSimilarity], result of:
           0.5168181 = score(doc=3654,freq=6.0), product of:
             0.48707938 = queryWeight, product of:
               4.4713216 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.01571743 = queryNorm
             1.0610552 = fieldWeight in 3654, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.0625 = fieldNorm(doc=3654)
       0.2 = coord(5/25)
   

5. Blake, P.: ¬The arrival of free patent information : Internet provision of patent information for free is affecting vendors (1998) 0.20

   0.19941634 = sum of:
     0.19941634 = product of:
       0.9970817 = sum of:
         0.023390839 = weight(abstract_txt:online in 2814) [ClassicSimilarity], result of:
           0.023390839 = score(doc=2814,freq=1.0), product of:
             0.06808499 = queryWeight, product of:
               1.1820797 = boost
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.01571743 = queryNorm
             0.3435535 = fieldWeight in 2814, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.09375 = fieldNorm(doc=2814)
         0.03913243 = weight(abstract_txt:indexing in 2814) [ClassicSimilarity], result of:
           0.03913243 = score(doc=2814,freq=1.0), product of:
             0.0959501 = queryWeight, product of:
               1.4032781 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.01571743 = queryNorm
             0.4078415 = fieldWeight in 2814, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.09375 = fieldNorm(doc=2814)
         0.08779785 = weight(abstract_txt:european in 2814) [ClassicSimilarity], result of:
           0.08779785 = score(doc=2814,freq=1.0), product of:
             0.164441 = queryWeight, product of:
               1.8370717 = boost
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.01571743 = queryNorm
             0.533917 = fieldWeight in 2814, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6951146 = idf(docFreq=405, maxDocs=44421)
               0.09375 = fieldNorm(doc=2814)
         0.13907833 = weight(abstract_txt:office in 2814) [ClassicSimilarity], result of:
           0.13907833 = score(doc=2814,freq=1.0), product of:
             0.22345693 = queryWeight, product of:
               2.1414995 = boost
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.01571743 = queryNorm
             0.6223943 = fieldWeight in 2814, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6388726 = idf(docFreq=157, maxDocs=44421)
               0.09375 = fieldNorm(doc=2814)
         0.70768225 = weight(abstract_txt:patent in 2814) [ClassicSimilarity], result of:
           0.70768225 = score(doc=2814,freq=5.0), product of:
             0.48707938 = queryWeight, product of:
               4.4713216 = boost
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.01571743 = queryNorm
             1.4529095 = fieldWeight in 2814, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.930783 = idf(docFreq=117, maxDocs=44421)
               0.09375 = fieldNorm(doc=2814)
       0.2 = coord(5/25)