Document (#705)

Author

Craven, T.C.

Title

Adapting of string indexing systems for retrieval using proximity operators

Source

Information processing and management. 24(1988), S.133-140

Year

1988

Abstract

This article explores the idea of using a conventional string indexing source description, together with a special phrase generator, to generate multiple descriptor phrases for inclusion in a database record for online retrieval. For use with proximity operators, these multiple descriptor phrases should attempt to meet such objectives as bringing together groups of syntactically related words. Software for generating multiple descriptor phrases from source descriptions in a specific existing string indexing system is briefly described

Theme

Register

Similar documents (author)

1. Craven, T.C.: ¬An online index entry format based on multiple search terms (1987) 5.21

   5.2088575 = sum of:
     5.2088575 = weight(author_txt:craven in 437) [ClassicSimilarity], result of:
       5.2088575 = fieldWeight in 437, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.334172 = idf(docFreq=28, maxDocs=44421)
         0.625 = fieldNorm(doc=437)
   

2. Craven, T.C.: Customized extracts based on Boolean queries and sentence dependency structures (1989) 5.21

   5.2088575 = sum of:
     5.2088575 = weight(author_txt:craven in 788) [ClassicSimilarity], result of:
       5.2088575 = fieldWeight in 788, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.334172 = idf(docFreq=28, maxDocs=44421)
         0.625 = fieldNorm(doc=788)
   

3. Craven, T.C.: Research in document classification and indexing (Canada) 1971-1980 (1981) 5.21

   5.2088575 = sum of:
     5.2088575 = weight(author_txt:craven in 1210) [ClassicSimilarity], result of:
       5.2088575 = fieldWeight in 1210, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.334172 = idf(docFreq=28, maxDocs=44421)
         0.625 = fieldNorm(doc=1210)
   

4. Craven, T.C.: NEPHIS: a nested phrase indexing system (1977) 5.21

   5.2088575 = sum of:
     5.2088575 = weight(author_txt:craven in 1332) [ClassicSimilarity], result of:
       5.2088575 = fieldWeight in 1332, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.334172 = idf(docFreq=28, maxDocs=44421)
         0.625 = fieldNorm(doc=1332)
   

5. Craven, T.C.: Changing technologies: impact on information: the case of string indexing (1985) 5.21

   5.2088575 = sum of:
     5.2088575 = weight(author_txt:craven in 1347) [ClassicSimilarity], result of:
       5.2088575 = fieldWeight in 1347, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.334172 = idf(docFreq=28, maxDocs=44421)
         0.625 = fieldNorm(doc=1347)
   

Similar documents (content)

1. Rahmstorf, G.: Information retrieval using conceptual representations of phrases (1994) 0.12

   0.12255724 = sum of:
     0.12255724 = product of:
       0.76598275 = sum of:
         0.028777689 = weight(abstract_txt:retrieval in 7861) [ClassicSimilarity], result of:
           0.028777689 = score(doc=7861,freq=2.0), product of:
             0.062434897 = queryWeight, product of:
               1.1916025 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.015071405 = queryNorm
             0.46092314 = fieldWeight in 7861, 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=7861)
         0.059808914 = weight(abstract_txt:indexing in 7861) [ClassicSimilarity], result of:
           0.059808914 = score(doc=7861,freq=1.0), product of:
             0.14664744 = queryWeight, product of:
               2.236663 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.015071405 = queryNorm
             0.4078415 = fieldWeight in 7861, 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=7861)
         0.40853968 = weight(abstract_txt:phrases in 7861) [ClassicSimilarity], result of:
           0.40853968 = score(doc=7861,freq=3.0), product of:
             0.36605495 = queryWeight, product of:
               3.5337553 = boost
               6.8731537 = idf(docFreq=124, maxDocs=44421)
               0.015071405 = queryNorm
             1.1160611 = fieldWeight in 7861, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.8731537 = idf(docFreq=124, maxDocs=44421)
               0.09375 = fieldNorm(doc=7861)
         0.26885647 = weight(abstract_txt:string in 7861) [ClassicSimilarity], result of:
           0.26885647 = score(doc=7861,freq=1.0), product of:
             0.39943323 = queryWeight, product of:
               3.6913517 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.015071405 = queryNorm
             0.67309487 = fieldWeight in 7861, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.09375 = fieldNorm(doc=7861)
       0.16 = coord(4/25)
   

2. Fagan, J.L.: ¬The effectiveness of a nonsyntactic approach to automatic phrase indexing for document retrieval (1989) 0.11

   0.10616954 = sum of:
     0.10616954 = product of:
       0.53084767 = sum of:
         0.013337437 = weight(abstract_txt:using in 2845) [ClassicSimilarity], result of:
           0.013337437 = score(doc=2845,freq=1.0), product of:
             0.061731838 = queryWeight, product of:
               1.1848744 = boost
               3.4568708 = idf(docFreq=3806, maxDocs=44421)
               0.015071405 = queryNorm
             0.21605442 = fieldWeight in 2845, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4568708 = idf(docFreq=3806, maxDocs=44421)
               0.0625 = fieldNorm(doc=2845)
         0.023496883 = weight(abstract_txt:retrieval in 2845) [ClassicSimilarity], result of:
           0.023496883 = score(doc=2845,freq=3.0), product of:
             0.062434897 = queryWeight, product of:
               1.1916025 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.015071405 = queryNorm
             0.37634215 = fieldWeight in 2845, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=2845)
         0.14190832 = weight(abstract_txt:phrase in 2845) [ClassicSimilarity], result of:
           0.14190832 = score(doc=2845,freq=6.0), product of:
             0.13043849 = queryWeight, product of:
               1.2178831 = boost
               7.1063476 = idf(docFreq=98, maxDocs=44421)
               0.015071405 = queryNorm
             1.0879328 = fieldWeight in 2845, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               7.1063476 = idf(docFreq=98, maxDocs=44421)
               0.0625 = fieldNorm(doc=2845)
         0.07974522 = weight(abstract_txt:indexing in 2845) [ClassicSimilarity], result of:
           0.07974522 = score(doc=2845,freq=4.0), product of:
             0.14664744 = queryWeight, product of:
               2.236663 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.015071405 = queryNorm
             0.5437887 = fieldWeight in 2845, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.0625 = fieldNorm(doc=2845)
         0.2723598 = weight(abstract_txt:phrases in 2845) [ClassicSimilarity], result of:
           0.2723598 = score(doc=2845,freq=3.0), product of:
             0.36605495 = queryWeight, product of:
               3.5337553 = boost
               6.8731537 = idf(docFreq=124, maxDocs=44421)
               0.015071405 = queryNorm
             0.7440407 = fieldWeight in 2845, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.8731537 = idf(docFreq=124, maxDocs=44421)
               0.0625 = fieldNorm(doc=2845)
       0.2 = coord(5/25)
   

3. Driscoll, J.R.; Rajala, D.A.; Shaffer, W.H.: ¬The operation and performance of an artificially intelligent keywording system (1991) 0.10

   0.101759225 = sum of:
     0.101759225 = product of:
       0.63599515 = sum of:
         0.02357748 = weight(abstract_txt:using in 6680) [ClassicSimilarity], result of:
           0.02357748 = score(doc=6680,freq=2.0), product of:
             0.061731838 = queryWeight, product of:
               1.1848744 = boost
               3.4568708 = idf(docFreq=3806, maxDocs=44421)
               0.015071405 = queryNorm
             0.38193387 = fieldWeight in 6680, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4568708 = idf(docFreq=3806, maxDocs=44421)
               0.078125 = fieldNorm(doc=6680)
         0.102413505 = weight(abstract_txt:phrase in 6680) [ClassicSimilarity], result of:
           0.102413505 = score(doc=6680,freq=2.0), product of:
             0.13043849 = queryWeight, product of:
               1.2178831 = boost
               7.1063476 = idf(docFreq=98, maxDocs=44421)
               0.015071405 = queryNorm
             0.7851479 = fieldWeight in 6680, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.1063476 = idf(docFreq=98, maxDocs=44421)
               0.078125 = fieldNorm(doc=6680)
         0.07048548 = weight(abstract_txt:indexing in 6680) [ClassicSimilarity], result of:
           0.07048548 = score(doc=6680,freq=2.0), product of:
             0.14664744 = queryWeight, product of:
               2.236663 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.015071405 = queryNorm
             0.48064584 = fieldWeight in 6680, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.078125 = fieldNorm(doc=6680)
         0.43951872 = weight(abstract_txt:phrases in 6680) [ClassicSimilarity], result of:
           0.43951872 = score(doc=6680,freq=5.0), product of:
             0.36605495 = queryWeight, product of:
               3.5337553 = boost
               6.8731537 = idf(docFreq=124, maxDocs=44421)
               0.015071405 = queryNorm
             1.2006905 = fieldWeight in 6680, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.8731537 = idf(docFreq=124, maxDocs=44421)
               0.078125 = fieldNorm(doc=6680)
       0.16 = coord(4/25)
   

4. Hofstede, M.: Zoeken in PiCarta : de proef op de som (1998) 0.10

   0.097592056 = sum of:
     0.097592056 = product of:
       0.48796028 = sum of:
         0.023340514 = weight(abstract_txt:using in 5735) [ClassicSimilarity], result of:
           0.023340514 = score(doc=5735,freq=1.0), product of:
             0.061731838 = queryWeight, product of:
               1.1848744 = boost
               3.4568708 = idf(docFreq=3806, maxDocs=44421)
               0.015071405 = queryNorm
             0.37809524 = fieldWeight in 5735, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4568708 = idf(docFreq=3806, maxDocs=44421)
               0.109375 = fieldNorm(doc=5735)
         0.07478123 = weight(abstract_txt:source in 5735) [ClassicSimilarity], result of:
           0.07478123 = score(doc=5735,freq=1.0), product of:
             0.13416235 = queryWeight, product of:
               1.7467592 = boost
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.015071405 = queryNorm
             0.55739355 = fieldWeight in 5735, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.109375 = fieldNorm(doc=5735)
         0.069777064 = weight(abstract_txt:indexing in 5735) [ClassicSimilarity], result of:
           0.069777064 = score(doc=5735,freq=1.0), product of:
             0.14664744 = queryWeight, product of:
               2.236663 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.015071405 = queryNorm
             0.4758151 = fieldWeight in 5735, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.109375 = fieldNorm(doc=5735)
         0.20541391 = weight(abstract_txt:operators in 5735) [ClassicSimilarity], result of:
           0.20541391 = score(doc=5735,freq=1.0), product of:
             0.26314119 = queryWeight, product of:
               2.4463136 = boost
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.015071405 = queryNorm
             0.7806224 = fieldWeight in 5735, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.109375 = fieldNorm(doc=5735)
         0.11464758 = weight(abstract_txt:multiple in 5735) [ClassicSimilarity], result of:
           0.11464758 = score(doc=5735,freq=1.0), product of:
             0.20419383 = queryWeight, product of:
               2.639275 = boost
               5.1333895 = idf(docFreq=711, maxDocs=44421)
               0.015071405 = queryNorm
             0.5614645 = fieldWeight in 5735, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.1333895 = idf(docFreq=711, maxDocs=44421)
               0.109375 = fieldNorm(doc=5735)
       0.2 = coord(5/25)
   

5. Bronson, R.J.: More NLM proximity searching hints (1996) 0.10

   0.095413625 = sum of:
     0.095413625 = product of:
       1.1926703 = sum of:
         0.5868969 = weight(abstract_txt:operators in 6699) [ClassicSimilarity], result of:
           0.5868969 = score(doc=6699,freq=1.0), product of:
             0.26314119 = queryWeight, product of:
               2.4463136 = boost
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.015071405 = queryNorm
             2.2303498 = fieldWeight in 6699, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.1371193 = idf(docFreq=95, maxDocs=44421)
               0.3125 = fieldNorm(doc=6699)
         0.6057734 = weight(abstract_txt:proximity in 6699) [ClassicSimilarity], result of:
           0.6057734 = score(doc=6699,freq=1.0), product of:
             0.26875368 = queryWeight, product of:
               2.4722645 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.015071405 = queryNorm
             2.2540097 = fieldWeight in 6699, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.3125 = fieldNorm(doc=6699)
       0.08 = coord(2/25)