Document (#5495)

Author

Mazur, Z.

Title

Inverted file organization in the information retrieval system based on thesaurus with weights

Source

Information processing and management. 15(1979), S.227-234

Year

1979

Abstract

The inverted file structure is often used to organize data in the information retrieval system. When the hierarchy relation on the set descriptors and weights of descriptors in document description would be taken into account, the conventional concept of the inverted file may be extended. Properties and operations on inverted files, which are used in systems based on thesaurus with weights, are studied in this paper

Similar documents (content)

1. Mazur, Z.: Models of a distributed information retrieval system based on thesauri with weights (1994) 1.29

   1.2887027 = sum of:
     1.2887027 = product of:
       1.6956615 = sum of:
         0.02042044 = weight(abstract_txt:often in 6733) [ClassicSimilarity], result of:
           0.02042044 = score(doc=6733,freq=1.0), product of:
             0.06770762 = queryWeight, product of:
               4.8255577 = idf(docFreq=931, maxDocs=42740)
               0.014031046 = queryNorm
             0.30159736 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8255577 = idf(docFreq=931, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.01166305 = weight(abstract_txt:information in 6733) [ClassicSimilarity], result of:
           0.01166305 = score(doc=6733,freq=5.0), product of:
             0.034341738 = queryWeight, product of:
               1.0071806 = boost
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.014031046 = queryNorm
             0.33961737 = fieldWeight in 6733, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.00579995 = weight(abstract_txt:with in 6733) [ClassicSimilarity], result of:
           0.00579995 = score(doc=6733,freq=1.0), product of:
             0.03685986 = queryWeight, product of:
               1.0434533 = boost
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.014031046 = queryNorm
             0.15735139 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.029357798 = weight(abstract_txt:relation in 6733) [ClassicSimilarity], result of:
           0.029357798 = score(doc=6733,freq=1.0), product of:
             0.08624683 = queryWeight, product of:
               1.1286331 = boost
               5.4462843 = idf(docFreq=500, maxDocs=42740)
               0.014031046 = queryNorm
             0.34039277 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4462843 = idf(docFreq=500, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.029520297 = weight(abstract_txt:account in 6733) [ClassicSimilarity], result of:
           0.029520297 = score(doc=6733,freq=1.0), product of:
             0.086564794 = queryWeight, product of:
               1.1307117 = boost
               5.4563146 = idf(docFreq=495, maxDocs=42740)
               0.014031046 = queryNorm
             0.34101966 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4563146 = idf(docFreq=495, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.03002154 = weight(abstract_txt:taken in 6733) [ClassicSimilarity], result of:
           0.03002154 = score(doc=6733,freq=1.0), product of:
             0.08754194 = queryWeight, product of:
               1.1370754 = boost
               5.4870234 = idf(docFreq=480, maxDocs=42740)
               0.014031046 = queryNorm
             0.34293896 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4870234 = idf(docFreq=480, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.03382598 = weight(abstract_txt:files in 6733) [ClassicSimilarity], result of:
           0.03382598 = score(doc=6733,freq=1.0), product of:
             0.094789684 = queryWeight, product of:
               1.1832098 = boost
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.014031046 = queryNorm
             0.35685295 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.03788677 = weight(abstract_txt:properties in 6733) [ClassicSimilarity], result of:
           0.03788677 = score(doc=6733,freq=1.0), product of:
             0.10223177 = queryWeight, product of:
               1.22878 = boost
               5.929549 = idf(docFreq=308, maxDocs=42740)
               0.014031046 = queryNorm
             0.37059683 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.929549 = idf(docFreq=308, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.045373887 = weight(abstract_txt:conventional in 6733) [ClassicSimilarity], result of:
           0.045373887 = score(doc=6733,freq=1.0), product of:
             0.11529173 = queryWeight, product of:
               1.3049092 = boost
               6.2969146 = idf(docFreq=213, maxDocs=42740)
               0.014031046 = queryNorm
             0.39355716 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2969146 = idf(docFreq=213, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.04567975 = weight(abstract_txt:organize in 6733) [ClassicSimilarity], result of:
           0.04567975 = score(doc=6733,freq=1.0), product of:
             0.11580927 = queryWeight, product of:
               1.3078347 = boost
               6.3110323 = idf(docFreq=210, maxDocs=42740)
               0.014031046 = queryNorm
             0.39443952 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.3110323 = idf(docFreq=210, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.012008834 = weight(abstract_txt:based in 6733) [ClassicSimilarity], result of:
           0.012008834 = score(doc=6733,freq=1.0), product of:
             0.059878565 = queryWeight, product of:
               1.3299396 = boost
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.014031046 = queryNorm
             0.20055313 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.071854986 = weight(abstract_txt:operations in 6733) [ClassicSimilarity], result of:
           0.071854986 = score(doc=6733,freq=2.0), product of:
             0.124324135 = queryWeight, product of:
               1.3550613 = boost
               6.5389266 = idf(docFreq=167, maxDocs=42740)
               0.014031046 = queryNorm
             0.5779649 = fieldWeight in 6733, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5389266 = idf(docFreq=167, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.03658643 = weight(abstract_txt:system in 6733) [ClassicSimilarity], result of:
           0.03658643 = score(doc=6733,freq=7.0), product of:
             0.06578368 = queryWeight, product of:
               1.393976 = boost
               3.3633559 = idf(docFreq=4021, maxDocs=42740)
               0.014031046 = queryNorm
             0.5561627 = fieldWeight in 6733, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.3633559 = idf(docFreq=4021, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.019757608 = weight(abstract_txt:used in 6733) [ClassicSimilarity], result of:
           0.019757608 = score(doc=6733,freq=2.0), product of:
             0.066234425 = queryWeight, product of:
               1.3987435 = boost
               3.3748589 = idf(docFreq=3975, maxDocs=42740)
               0.014031046 = queryNorm
             0.29829818 = fieldWeight in 6733, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3748589 = idf(docFreq=3975, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.03380435 = weight(abstract_txt:retrieval in 6733) [ClassicSimilarity], result of:
           0.03380435 = score(doc=6733,freq=5.0), product of:
             0.06981186 = queryWeight, product of:
               1.4360211 = boost
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.014031046 = queryNorm
             0.4842207 = fieldWeight in 6733, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.10731702 = weight(abstract_txt:descriptors in 6733) [ClassicSimilarity], result of:
           0.10731702 = score(doc=6733,freq=1.0), product of:
             0.25785956 = queryWeight, product of:
               2.759865 = boost
               6.658944 = idf(docFreq=148, maxDocs=42740)
               0.014031046 = queryNorm
             0.416184 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.658944 = idf(docFreq=148, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.094178215 = weight(abstract_txt:file in 6733) [ClassicSimilarity], result of:
           0.094178215 = score(doc=6733,freq=1.0), product of:
             0.2705629 = queryWeight, product of:
               3.46239 = boost
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.014031046 = queryNorm
             0.34808254 = fieldWeight in 6733, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.296062 = weight(abstract_txt:weights in 6733) [ClassicSimilarity], result of:
           0.296062 = score(doc=6733,freq=2.0), product of:
             0.46083596 = queryWeight, product of:
               4.518716 = boost
               7.268441 = idf(docFreq=80, maxDocs=42740)
               0.014031046 = queryNorm
             0.6424455 = fieldWeight in 6733, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.268441 = idf(docFreq=80, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
         0.73454267 = weight(abstract_txt:inverted in 6733) [ClassicSimilarity], result of:
           0.73454267 = score(doc=6733,freq=5.0), product of:
             0.68491316 = queryWeight, product of:
               6.3610525 = boost
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.014031046 = queryNorm
             1.072461 = fieldWeight in 6733, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.0625 = fieldNorm(doc=6733)
       0.76 = coord(19/25)
   

2. MacFarlane, A.; McCann, J.A.; Robertson, S.E.: Parallel methods for the update of partitioned inverted files (2007) 0.34

   0.33918762 = sum of:
     0.33918762 = product of:
       1.0599613 = sum of:
         0.005215875 = weight(abstract_txt:information in 2820) [ClassicSimilarity], result of:
           0.005215875 = score(doc=2820,freq=1.0), product of:
             0.034341738 = queryWeight, product of:
               1.0071806 = boost
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.014031046 = queryNorm
             0.1518815 = fieldWeight in 2820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.010045808 = weight(abstract_txt:with in 2820) [ClassicSimilarity], result of:
           0.010045808 = score(doc=2820,freq=3.0), product of:
             0.03685986 = queryWeight, product of:
               1.0434533 = boost
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.014031046 = queryNorm
             0.2725406 = fieldWeight in 2820, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.07563719 = weight(abstract_txt:files in 2820) [ClassicSimilarity], result of:
           0.07563719 = score(doc=2820,freq=5.0), product of:
             0.094789684 = queryWeight, product of:
               1.1832098 = boost
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.014031046 = queryNorm
             0.79794747 = fieldWeight in 2820, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.034882575 = weight(abstract_txt:studied in 2820) [ClassicSimilarity], result of:
           0.034882575 = score(doc=2820,freq=1.0), product of:
             0.09675346 = queryWeight, product of:
               1.1954033 = boost
               5.768488 = idf(docFreq=362, maxDocs=42740)
               0.014031046 = queryNorm
             0.3605305 = fieldWeight in 2820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.768488 = idf(docFreq=362, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.01397074 = weight(abstract_txt:used in 2820) [ClassicSimilarity], result of:
           0.01397074 = score(doc=2820,freq=1.0), product of:
             0.066234425 = queryWeight, product of:
               1.3987435 = boost
               3.3748589 = idf(docFreq=3975, maxDocs=42740)
               0.014031046 = queryNorm
             0.21092868 = fieldWeight in 2820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3748589 = idf(docFreq=3975, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.021379746 = weight(abstract_txt:retrieval in 2820) [ClassicSimilarity], result of:
           0.021379746 = score(doc=2820,freq=2.0), product of:
             0.06981186 = queryWeight, product of:
               1.4360211 = boost
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.014031046 = queryNorm
             0.30624807 = fieldWeight in 2820, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.094178215 = weight(abstract_txt:file in 2820) [ClassicSimilarity], result of:
           0.094178215 = score(doc=2820,freq=1.0), product of:
             0.2705629 = queryWeight, product of:
               3.46239 = boost
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.014031046 = queryNorm
             0.34808254 = fieldWeight in 2820, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
         0.8046512 = weight(abstract_txt:inverted in 2820) [ClassicSimilarity], result of:
           0.8046512 = score(doc=2820,freq=6.0), product of:
             0.68491316 = queryWeight, product of:
               6.3610525 = boost
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.014031046 = queryNorm
             1.1748222 = fieldWeight in 2820, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.0625 = fieldNorm(doc=2820)
       0.32 = coord(8/25)
   

3. Shieh, W.-Y.; Chung, C.-P.: ¬A statistics-based approach to incrementally update inverted files (2005) 0.30

   0.3010121 = sum of:
     0.3010121 = product of:
       1.2542171 = sum of:
         0.0065198434 = weight(abstract_txt:information in 3011) [ClassicSimilarity], result of:
           0.0065198434 = score(doc=3011,freq=1.0), product of:
             0.034341738 = queryWeight, product of:
               1.0071806 = boost
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.014031046 = queryNorm
             0.18985188 = fieldWeight in 3011, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.078125 = fieldNorm(doc=3011)
         0.0072499374 = weight(abstract_txt:with in 3011) [ClassicSimilarity], result of:
           0.0072499374 = score(doc=3011,freq=1.0), product of:
             0.03685986 = queryWeight, product of:
               1.0434533 = boost
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.014031046 = queryNorm
             0.19668923 = fieldWeight in 3011, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.078125 = fieldNorm(doc=3011)
         0.015011042 = weight(abstract_txt:based in 3011) [ClassicSimilarity], result of:
           0.015011042 = score(doc=3011,freq=1.0), product of:
             0.059878565 = queryWeight, product of:
               1.3299396 = boost
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.014031046 = queryNorm
             0.2506914 = fieldWeight in 3011, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.2088501 = idf(docFreq=4693, maxDocs=42740)
               0.078125 = fieldNorm(doc=3011)
         0.018897206 = weight(abstract_txt:retrieval in 3011) [ClassicSimilarity], result of:
           0.018897206 = score(doc=3011,freq=1.0), product of:
             0.06981186 = queryWeight, product of:
               1.4360211 = boost
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.014031046 = queryNorm
             0.2706876 = fieldWeight in 3011, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.078125 = fieldNorm(doc=3011)
         0.28836074 = weight(abstract_txt:file in 3011) [ClassicSimilarity], result of:
           0.28836074 = score(doc=3011,freq=6.0), product of:
             0.2705629 = queryWeight, product of:
               3.46239 = boost
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.014031046 = queryNorm
             1.0657809 = fieldWeight in 3011, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.078125 = fieldNorm(doc=3011)
         0.9181783 = weight(abstract_txt:inverted in 3011) [ClassicSimilarity], result of:
           0.9181783 = score(doc=3011,freq=5.0), product of:
             0.68491316 = queryWeight, product of:
               6.3610525 = boost
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.014031046 = queryNorm
             1.3405763 = fieldWeight in 3011, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.078125 = fieldNorm(doc=3011)
       0.24 = coord(6/25)
   

4. Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997) 0.27

   0.27386937 = sum of:
     0.27386937 = product of:
       0.85584176 = sum of:
         0.0073763607 = weight(abstract_txt:information in 533) [ClassicSimilarity], result of:
           0.0073763607 = score(doc=533,freq=2.0), product of:
             0.034341738 = queryWeight, product of:
               1.0071806 = boost
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.014031046 = queryNorm
             0.21479288 = fieldWeight in 533, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.430104 = idf(docFreq=10226, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.010045808 = weight(abstract_txt:with in 533) [ClassicSimilarity], result of:
           0.010045808 = score(doc=533,freq=3.0), product of:
             0.03685986 = queryWeight, product of:
               1.0434533 = boost
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.014031046 = queryNorm
             0.2725406 = fieldWeight in 533, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.047837157 = weight(abstract_txt:files in 533) [ClassicSimilarity], result of:
           0.047837157 = score(doc=533,freq=2.0), product of:
             0.094789684 = queryWeight, product of:
               1.1832098 = boost
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.014031046 = queryNorm
             0.50466627 = fieldWeight in 533, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.04160925 = weight(abstract_txt:extended in 533) [ClassicSimilarity], result of:
           0.04160925 = score(doc=533,freq=1.0), product of:
             0.10882302 = queryWeight, product of:
               1.2677733 = boost
               6.117713 = idf(docFreq=255, maxDocs=42740)
               0.014031046 = queryNorm
             0.38235706 = fieldWeight in 533, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.117713 = idf(docFreq=255, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.030235527 = weight(abstract_txt:retrieval in 533) [ClassicSimilarity], result of:
           0.030235527 = score(doc=533,freq=4.0), product of:
             0.06981186 = queryWeight, product of:
               1.4360211 = boost
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.014031046 = queryNorm
             0.43310016 = fieldWeight in 533, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4648013 = idf(docFreq=3633, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.094178215 = weight(abstract_txt:file in 533) [ClassicSimilarity], result of:
           0.094178215 = score(doc=533,freq=1.0), product of:
             0.2705629 = queryWeight, product of:
               3.46239 = boost
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.014031046 = queryNorm
             0.34808254 = fieldWeight in 533, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.296062 = weight(abstract_txt:weights in 533) [ClassicSimilarity], result of:
           0.296062 = score(doc=533,freq=2.0), product of:
             0.46083596 = queryWeight, product of:
               4.518716 = boost
               7.268441 = idf(docFreq=80, maxDocs=42740)
               0.014031046 = queryNorm
             0.6424455 = fieldWeight in 533, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.268441 = idf(docFreq=80, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
         0.32849747 = weight(abstract_txt:inverted in 533) [ClassicSimilarity], result of:
           0.32849747 = score(doc=533,freq=1.0), product of:
             0.68491316 = queryWeight, product of:
               6.3610525 = boost
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.014031046 = queryNorm
             0.47961915 = fieldWeight in 533, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.0625 = fieldNorm(doc=533)
       0.32 = coord(8/25)
   

5. Harman, D.; Fox, E.; Baeza-Yates, R.; Lee, W.: Inverted files (1992) 0.24

   0.24493618 = sum of:
     0.24493618 = product of:
       1.2246809 = sum of:
         0.0115999 = weight(abstract_txt:with in 4498) [ClassicSimilarity], result of:
           0.0115999 = score(doc=4498,freq=1.0), product of:
             0.03685986 = queryWeight, product of:
               1.0434533 = boost
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.014031046 = queryNorm
             0.31470278 = fieldWeight in 4498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.5176222 = idf(docFreq=9369, maxDocs=42740)
               0.125 = fieldNorm(doc=4498)
         0.06765196 = weight(abstract_txt:files in 4498) [ClassicSimilarity], result of:
           0.06765196 = score(doc=4498,freq=1.0), product of:
             0.094789684 = queryWeight, product of:
               1.1832098 = boost
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.014031046 = queryNorm
             0.7137059 = fieldWeight in 4498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.709647 = idf(docFreq=384, maxDocs=42740)
               0.125 = fieldNorm(doc=4498)
         0.02794148 = weight(abstract_txt:used in 4498) [ClassicSimilarity], result of:
           0.02794148 = score(doc=4498,freq=1.0), product of:
             0.066234425 = queryWeight, product of:
               1.3987435 = boost
               3.3748589 = idf(docFreq=3975, maxDocs=42740)
               0.014031046 = queryNorm
             0.42185736 = fieldWeight in 4498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3748589 = idf(docFreq=3975, maxDocs=42740)
               0.125 = fieldNorm(doc=4498)
         0.18835643 = weight(abstract_txt:file in 4498) [ClassicSimilarity], result of:
           0.18835643 = score(doc=4498,freq=1.0), product of:
             0.2705629 = queryWeight, product of:
               3.46239 = boost
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.014031046 = queryNorm
             0.6961651 = fieldWeight in 4498, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5693207 = idf(docFreq=442, maxDocs=42740)
               0.125 = fieldNorm(doc=4498)
         0.9291311 = weight(abstract_txt:inverted in 4498) [ClassicSimilarity], result of:
           0.9291311 = score(doc=4498,freq=2.0), product of:
             0.68491316 = queryWeight, product of:
               6.3610525 = boost
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.014031046 = queryNorm
             1.3565677 = fieldWeight in 4498, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.6739063 = idf(docFreq=53, maxDocs=42740)
               0.125 = fieldNorm(doc=4498)
       0.2 = coord(5/25)