Document (#7951)

Author

O'Leary, M.

Title

DIALOG TARGET's new age searching

Source

Information today. 10(1993) no.11, S.49-50

Year

1993

Abstract

Relevance search engines, which measure the occurrence of search terms in a group of retrieved records and rank them accordingly, often produce better results than refined Boolean searches. Relevance searching has emerged from the research stage to be on the verge of becoming the standard retrieval method. Describes and evaluates the operation of DIALOG's TARGET, a major accomplishment, despite some rough edges

Theme

Retrievalalgorithmen

Similar documents (author)

1. O'Leary, M.: FirstSearch takes the lead (1992) 5.47

   5.4731426 = sum of:
     5.4731426 = weight(author_txt:o'leary in 3120) [ClassicSimilarity], result of:
       5.4731426 = fieldWeight in 3120, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.757029 = idf(docFreq=18, maxDocs=44421)
         0.625 = fieldNorm(doc=3120)
   

2. O'Leary, M.: DIALOG Select : DIALOG for knowledge worker-on the Web (1997) 5.47

   5.4731426 = sum of:
     5.4731426 = weight(author_txt:o'leary in 6488) [ClassicSimilarity], result of:
       5.4731426 = fieldWeight in 6488, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.757029 = idf(docFreq=18, maxDocs=44421)
         0.625 = fieldNorm(doc=6488)
   

3. O'Leary, M.: Images on CompuServe : the best of 'Bettmann' online (1995) 5.47

   5.4731426 = sum of:
     5.4731426 = weight(author_txt:o'leary in 2015) [ClassicSimilarity], result of:
       5.4731426 = fieldWeight in 2015, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.757029 = idf(docFreq=18, maxDocs=44421)
         0.625 = fieldNorm(doc=2015)
   

4. O'Leary, D.E.: Using AI in knowledge management : knowledge bases and ontologies (1998) 5.47

   5.4731426 = sum of:
     5.4731426 = weight(author_txt:o'leary in 2643) [ClassicSimilarity], result of:
       5.4731426 = fieldWeight in 2643, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.757029 = idf(docFreq=18, maxDocs=44421)
         0.625 = fieldNorm(doc=2643)
   

5. O'Leary, D.E.O.: ¬The relationship between errors and size in knowledge-based systems (1996) 5.47

   5.4731426 = sum of:
     5.4731426 = weight(author_txt:o'leary in 4815) [ClassicSimilarity], result of:
       5.4731426 = fieldWeight in 4815, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.757029 = idf(docFreq=18, maxDocs=44421)
         0.625 = fieldNorm(doc=4815)
   

Similar documents (content)

1. Tenopir, C.: Online databases : overcoming the 'black box' syndrome (1994) 0.23

   0.22765808 = sum of:
     0.22765808 = product of:
       0.9485754 = sum of:
         0.07289698 = weight(abstract_txt:searches in 156) [ClassicSimilarity], result of:
           0.07289698 = score(doc=156,freq=1.0), product of:
             0.111524634 = queryWeight, product of:
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.021327605 = queryNorm
             0.65364015 = fieldWeight in 156, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.125 = fieldNorm(doc=156)
         0.07545779 = weight(abstract_txt:engines in 156) [ClassicSimilarity], result of:
           0.07545779 = score(doc=156,freq=1.0), product of:
             0.11412142 = queryWeight, product of:
               1.0115752 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.021327605 = queryNorm
             0.6612062 = fieldWeight in 156, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.125 = fieldNorm(doc=156)
         0.17642662 = weight(abstract_txt:boolean in 156) [ClassicSimilarity], result of:
           0.17642662 = score(doc=156,freq=2.0), product of:
             0.1595624 = queryWeight, product of:
               1.1961341 = boost
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.021327605 = queryNorm
             1.1056905 = fieldWeight in 156, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.125 = fieldNorm(doc=156)
         0.14875366 = weight(abstract_txt:dialog in 156) [ClassicSimilarity], result of:
           0.14875366 = score(doc=156,freq=1.0), product of:
             0.17942221 = queryWeight, product of:
               1.2683897 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.021327605 = queryNorm
             0.82907045 = fieldWeight in 156, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.125 = fieldNorm(doc=156)
         0.08620509 = weight(abstract_txt:search in 156) [ClassicSimilarity], result of:
           0.08620509 = score(doc=156,freq=3.0), product of:
             0.10894885 = queryWeight, product of:
               1.3977867 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021327605 = queryNorm
             0.7912437 = fieldWeight in 156, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.125 = fieldNorm(doc=156)
         0.38883522 = weight(abstract_txt:dialog's in 156) [ClassicSimilarity], result of:
           0.38883522 = score(doc=156,freq=1.0), product of:
             0.34046686 = queryWeight, product of:
               1.7472378 = boost
               9.1365185 = idf(docFreq=12, maxDocs=44421)
               0.021327605 = queryNorm
             1.1420648 = fieldWeight in 156, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.1365185 = idf(docFreq=12, maxDocs=44421)
               0.125 = fieldNorm(doc=156)
       0.24 = coord(6/25)
   

2. O'Leary, M.: DIALOG Select : DIALOG for knowledge worker-on the Web (1997) 0.15

   0.15113203 = sum of:
     0.15113203 = product of:
       0.7556602 = sum of:
         0.106796406 = weight(abstract_txt:operation in 6488) [ClassicSimilarity], result of:
           0.106796406 = score(doc=6488,freq=1.0), product of:
             0.17427216 = queryWeight, product of:
               1.2500535 = boost
               6.5366817 = idf(docFreq=174, maxDocs=44421)
               0.021327605 = queryNorm
             0.6128139 = fieldWeight in 6488, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5366817 = idf(docFreq=174, maxDocs=44421)
               0.09375 = fieldNorm(doc=6488)
         0.11156524 = weight(abstract_txt:dialog in 6488) [ClassicSimilarity], result of:
           0.11156524 = score(doc=6488,freq=1.0), product of:
             0.17942221 = queryWeight, product of:
               1.2683897 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.021327605 = queryNorm
             0.6218028 = fieldWeight in 6488, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.09375 = fieldNorm(doc=6488)
         0.06465382 = weight(abstract_txt:search in 6488) [ClassicSimilarity], result of:
           0.06465382 = score(doc=6488,freq=3.0), product of:
             0.10894885 = queryWeight, product of:
               1.3977867 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021327605 = queryNorm
             0.5934328 = fieldWeight in 6488, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.09375 = fieldNorm(doc=6488)
         0.060222678 = weight(abstract_txt:searching in 6488) [ClassicSimilarity], result of:
           0.060222678 = score(doc=6488,freq=1.0), product of:
             0.14986734 = queryWeight, product of:
               1.6393931 = boost
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.021327605 = queryNorm
             0.4018399 = fieldWeight in 6488, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.09375 = fieldNorm(doc=6488)
         0.412422 = weight(abstract_txt:dialog's in 6488) [ClassicSimilarity], result of:
           0.412422 = score(doc=6488,freq=2.0), product of:
             0.34046686 = queryWeight, product of:
               1.7472378 = boost
               9.1365185 = idf(docFreq=12, maxDocs=44421)
               0.021327605 = queryNorm
             1.2113426 = fieldWeight in 6488, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               9.1365185 = idf(docFreq=12, maxDocs=44421)
               0.09375 = fieldNorm(doc=6488)
       0.2 = coord(5/25)
   

3. Barker, A.L.: Non-Boolean searching on commercial online systems : optimising use of Dialog TARGET and ESA/IRS QUESTQUORUM (1995) 0.14

   0.14059329 = sum of:
     0.14059329 = product of:
       0.70296645 = sum of:
         0.06378485 = weight(abstract_txt:searches in 3921) [ClassicSimilarity], result of:
           0.06378485 = score(doc=3921,freq=1.0), product of:
             0.111524634 = queryWeight, product of:
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.021327605 = queryNorm
             0.5719351 = fieldWeight in 3921, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.109375 = fieldNorm(doc=3921)
         0.15437329 = weight(abstract_txt:boolean in 3921) [ClassicSimilarity], result of:
           0.15437329 = score(doc=3921,freq=2.0), product of:
             0.1595624 = queryWeight, product of:
               1.1961341 = boost
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.021327605 = queryNorm
             0.96747917 = fieldWeight in 3921, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.109375 = fieldNorm(doc=3921)
         0.17904149 = weight(abstract_txt:target in 3921) [ClassicSimilarity], result of:
           0.17904149 = score(doc=3921,freq=2.0), product of:
             0.17613739 = queryWeight, product of:
               1.2567253 = boost
               6.571569 = idf(docFreq=168, maxDocs=44421)
               0.021327605 = queryNorm
             1.0164877 = fieldWeight in 3921, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.571569 = idf(docFreq=168, maxDocs=44421)
               0.109375 = fieldNorm(doc=3921)
         0.18407325 = weight(abstract_txt:dialog in 3921) [ClassicSimilarity], result of:
           0.18407325 = score(doc=3921,freq=2.0), product of:
             0.17942221 = queryWeight, product of:
               1.2683897 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.021327605 = queryNorm
             1.0259223 = fieldWeight in 3921, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.109375 = fieldNorm(doc=3921)
         0.12169354 = weight(abstract_txt:searching in 3921) [ClassicSimilarity], result of:
           0.12169354 = score(doc=3921,freq=3.0), product of:
             0.14986734 = queryWeight, product of:
               1.6393931 = boost
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.021327605 = queryNorm
             0.8120084 = fieldWeight in 3921, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.109375 = fieldNorm(doc=3921)
       0.2 = coord(5/25)
   

4. Feldman, S.E.: Searching natural language systems : searchers know the engine (1994) 0.13

   0.12764484 = sum of:
     0.12764484 = product of:
       0.5318535 = sum of:
         0.06602556 = weight(abstract_txt:engines in 1828) [ClassicSimilarity], result of:
           0.06602556 = score(doc=1828,freq=1.0), product of:
             0.11412142 = queryWeight, product of:
               1.0115752 = boost
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.021327605 = queryNorm
             0.5785554 = fieldWeight in 1828, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2896495 = idf(docFreq=608, maxDocs=44421)
               0.109375 = fieldNorm(doc=1828)
         0.109158404 = weight(abstract_txt:boolean in 1828) [ClassicSimilarity], result of:
           0.109158404 = score(doc=1828,freq=1.0), product of:
             0.1595624 = queryWeight, product of:
               1.1961341 = boost
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.021327605 = queryNorm
             0.6841111 = fieldWeight in 1828, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.109375 = fieldNorm(doc=1828)
         0.11794626 = weight(abstract_txt:rank in 1828) [ClassicSimilarity], result of:
           0.11794626 = score(doc=1828,freq=1.0), product of:
             0.16801518 = queryWeight, product of:
               1.2274077 = boost
               6.418264 = idf(docFreq=196, maxDocs=44421)
               0.021327605 = queryNorm
             0.70199764 = fieldWeight in 1828, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.418264 = idf(docFreq=196, maxDocs=44421)
               0.109375 = fieldNorm(doc=1828)
         0.061587892 = weight(abstract_txt:search in 1828) [ClassicSimilarity], result of:
           0.061587892 = score(doc=1828,freq=2.0), product of:
             0.10894885 = queryWeight, product of:
               1.3977867 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021327605 = queryNorm
             0.5652918 = fieldWeight in 1828, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.109375 = fieldNorm(doc=1828)
         0.070259795 = weight(abstract_txt:searching in 1828) [ClassicSimilarity], result of:
           0.070259795 = score(doc=1828,freq=1.0), product of:
             0.14986734 = queryWeight, product of:
               1.6393931 = boost
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.021327605 = queryNorm
             0.46881324 = fieldWeight in 1828, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.109375 = fieldNorm(doc=1828)
         0.1068756 = weight(abstract_txt:relevance in 1828) [ClassicSimilarity], result of:
           0.1068756 = score(doc=1828,freq=1.0), product of:
             0.19822334 = queryWeight, product of:
               1.8854151 = boost
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.021327605 = queryNorm
             0.5391676 = fieldWeight in 1828, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.109375 = fieldNorm(doc=1828)
       0.24 = coord(6/25)
   

5. Feldman, S.: Testing natural language : comparing DIALOG, TARGET, and DR-LINK (1996) 0.12

   0.12438361 = sum of:
     0.12438361 = product of:
       0.51826507 = sum of:
         0.09356435 = weight(abstract_txt:boolean in 532) [ClassicSimilarity], result of:
           0.09356435 = score(doc=532,freq=1.0), product of:
             0.1595624 = queryWeight, product of:
               1.1961341 = boost
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.021327605 = queryNorm
             0.58638096 = fieldWeight in 532, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.25473 = idf(docFreq=231, maxDocs=44421)
               0.09375 = fieldNorm(doc=532)
         0.10851553 = weight(abstract_txt:target in 532) [ClassicSimilarity], result of:
           0.10851553 = score(doc=532,freq=1.0), product of:
             0.17613739 = queryWeight, product of:
               1.2567253 = boost
               6.571569 = idf(docFreq=168, maxDocs=44421)
               0.021327605 = queryNorm
             0.6160846 = fieldWeight in 532, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.571569 = idf(docFreq=168, maxDocs=44421)
               0.09375 = fieldNorm(doc=532)
         0.11156524 = weight(abstract_txt:dialog in 532) [ClassicSimilarity], result of:
           0.11156524 = score(doc=532,freq=1.0), product of:
             0.17942221 = queryWeight, product of:
               1.2683897 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.021327605 = queryNorm
             0.6218028 = fieldWeight in 532, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.09375 = fieldNorm(doc=532)
         0.05278962 = weight(abstract_txt:search in 532) [ClassicSimilarity], result of:
           0.05278962 = score(doc=532,freq=2.0), product of:
             0.10894885 = queryWeight, product of:
               1.3977867 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021327605 = queryNorm
             0.4845358 = fieldWeight in 532, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.09375 = fieldNorm(doc=532)
         0.060222678 = weight(abstract_txt:searching in 532) [ClassicSimilarity], result of:
           0.060222678 = score(doc=532,freq=1.0), product of:
             0.14986734 = queryWeight, product of:
               1.6393931 = boost
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.021327605 = queryNorm
             0.4018399 = fieldWeight in 532, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2862926 = idf(docFreq=1660, maxDocs=44421)
               0.09375 = fieldNorm(doc=532)
         0.09160765 = weight(abstract_txt:relevance in 532) [ClassicSimilarity], result of:
           0.09160765 = score(doc=532,freq=1.0), product of:
             0.19822334 = queryWeight, product of:
               1.8854151 = boost
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.021327605 = queryNorm
             0.46214363 = fieldWeight in 532, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.929532 = idf(docFreq=872, maxDocs=44421)
               0.09375 = fieldNorm(doc=532)
       0.24 = coord(6/25)