Document (#12579)

Author

Booth, A.

Title

How consistent is MEDLINE indexing?

Source

Health libraries review. 7(1990) no.1, S.22-26

Year

1990

Abstract

A known-item search for abstracts to previously retrieved references revealed that 2 documents from the same annual volume had been indexed twice. Working from the premise that the whole volume may have been double-indexed, a search strategy was devised that limited the journal code to the year in question. 57 references were retrieved, comprising 28 pairs of duplicates plus a citation for the whole volume. Author, title, source and descriptors were requested off-line and the citations were paired with their duplicates. The 4 categories of descriptors-major descriptors, minor descriptors, subheadings and check-tags-were compared for depth and consistency of indexing and lessons that might be learnt from the study are discussed.

Theme

Indexierungsstudien

Object

MEDLINE

Similar documents (author)

1. Booth, A.D.: On the geometry of libraries (1969) 5.35

   5.353733 = sum of:
     5.353733 = weight(author_txt:booth in 1703) [ClassicSimilarity], result of:
       5.353733 = fieldWeight in 1703, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.565973 = idf(docFreq=22, maxDocs=44421)
         0.625 = fieldNorm(doc=1703)
   

2. Booth, B.: ¬A 'new' ERIC thesaurus fine-tuned for searching (1979) 5.35

   5.353733 = sum of:
     5.353733 = weight(author_txt:booth in 4172) [ClassicSimilarity], result of:
       5.353733 = fieldWeight in 4172, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.565973 = idf(docFreq=22, maxDocs=44421)
         0.625 = fieldNorm(doc=4172)
   

3. Booth, P.F.: Translating and indexing : some thoughts on their relationship (2006) 5.35

   5.353733 = sum of:
     5.353733 = weight(author_txt:booth in 4638) [ClassicSimilarity], result of:
       5.353733 = fieldWeight in 4638, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.565973 = idf(docFreq=22, maxDocs=44421)
         0.625 = fieldNorm(doc=4638)
   

4. Booth, P.F.: Together or apart : the problems of stock integration (1991) 5.35

   5.353733 = sum of:
     5.353733 = weight(author_txt:booth in 4897) [ClassicSimilarity], result of:
       5.353733 = fieldWeight in 4897, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.565973 = idf(docFreq=22, maxDocs=44421)
         0.625 = fieldNorm(doc=4897)
   

5. Booth, D.: Indexing parish registers by computer (1993) 5.35

   5.353733 = sum of:
     5.353733 = weight(author_txt:booth in 6621) [ClassicSimilarity], result of:
       5.353733 = fieldWeight in 6621, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.565973 = idf(docFreq=22, maxDocs=44421)
         0.625 = fieldNorm(doc=6621)
   

Similar documents (content)

1. Brenner, S.H.; McKinin, E.J.: CINAHL and MEDLINE : a comparison of indexing practices (1989) 0.22

   0.22204165 = sum of:
     0.22204165 = product of:
       1.1102083 = sum of:
         0.11447121 = weight(abstract_txt:minor in 2911) [ClassicSimilarity], result of:
           0.11447121 = score(doc=2911,freq=1.0), product of:
             0.15831816 = queryWeight, product of:
               1.1072772 = boost
               7.7124834 = idf(docFreq=53, maxDocs=44421)
               0.018538738 = queryNorm
             0.72304535 = fieldWeight in 2911, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.7124834 = idf(docFreq=53, maxDocs=44421)
               0.09375 = fieldNorm(doc=2911)
         0.19075714 = weight(abstract_txt:twice in 2911) [ClassicSimilarity], result of:
           0.19075714 = score(doc=2911,freq=2.0), product of:
             0.17662157 = queryWeight, product of:
               1.169534 = boost
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.018538738 = queryNorm
             1.0800331 = fieldWeight in 2911, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.146119 = idf(docFreq=34, maxDocs=44421)
               0.09375 = fieldNorm(doc=2911)
         0.10064208 = weight(abstract_txt:indexing in 2911) [ClassicSimilarity], result of:
           0.10064208 = score(doc=2911,freq=6.0), product of:
             0.10074246 = queryWeight, product of:
               1.2491432 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.018538738 = queryNorm
             0.9990036 = fieldWeight in 2911, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.09375 = fieldNorm(doc=2911)
         0.11344447 = weight(abstract_txt:indexed in 2911) [ClassicSimilarity], result of:
           0.11344447 = score(doc=2911,freq=1.0), product of:
             0.19827387 = queryWeight, product of:
               1.752422 = boost
               6.1030455 = idf(docFreq=269, maxDocs=44421)
               0.018538738 = queryNorm
             0.5721605 = fieldWeight in 2911, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1030455 = idf(docFreq=269, maxDocs=44421)
               0.09375 = fieldNorm(doc=2911)
         0.59089345 = weight(abstract_txt:descriptors in 2911) [ClassicSimilarity], result of:
           0.59089345 = score(doc=2911,freq=4.0), product of:
             0.47286737 = queryWeight, product of:
               3.8272836 = boost
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.018538738 = queryNorm
             1.2495966 = fieldWeight in 2911, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.09375 = fieldNorm(doc=2911)
       0.2 = coord(5/25)
   

2. Pao, M.L.; Worthen, D.B.: Retrieval effectiveness by semantic and citation searching (1989) 0.19

   0.19331715 = sum of:
     0.19331715 = product of:
       0.6041161 = sum of:
         0.019637495 = weight(abstract_txt:been in 2287) [ClassicSimilarity], result of:
           0.019637495 = score(doc=2287,freq=1.0), product of:
             0.06954322 = queryWeight, product of:
               1.037847 = boost
               3.614442 = idf(docFreq=3251, maxDocs=44421)
               0.018538738 = queryNorm
             0.2823783 = fieldWeight in 2287, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.614442 = idf(docFreq=3251, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.028707553 = weight(abstract_txt:search in 2287) [ClassicSimilarity], result of:
           0.028707553 = score(doc=2287,freq=2.0), product of:
             0.07109704 = queryWeight, product of:
               1.0493774 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.018538738 = queryNorm
             0.40377986 = fieldWeight in 2287, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.01310681 = weight(abstract_txt:from in 2287) [ClassicSimilarity], result of:
           0.01310681 = score(doc=2287,freq=1.0), product of:
             0.060798444 = queryWeight, product of:
               1.1884962 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018538738 = queryNorm
             0.21557805 = fieldWeight in 2287, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.011001452 = weight(abstract_txt:that in 2287) [ClassicSimilarity], result of:
           0.011001452 = score(doc=2287,freq=1.0), product of:
             0.059544373 = queryWeight, product of:
               1.35813 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018538738 = queryNorm
             0.18476056 = fieldWeight in 2287, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.072991535 = weight(abstract_txt:references in 2287) [ClassicSimilarity], result of:
           0.072991535 = score(doc=2287,freq=1.0), product of:
             0.16687031 = queryWeight, product of:
               1.6076648 = boost
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.018538738 = queryNorm
             0.43741477 = fieldWeight in 2287, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.15444106 = weight(abstract_txt:retrieved in 2287) [ClassicSimilarity], result of:
           0.15444106 = score(doc=2287,freq=4.0), product of:
             0.17325506 = queryWeight, product of:
               1.6381322 = boost
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.018538738 = queryNorm
             0.8914087 = fieldWeight in 2287, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.05802461 = weight(abstract_txt:were in 2287) [ClassicSimilarity], result of:
           0.05802461 = score(doc=2287,freq=2.0), product of:
             0.14319864 = queryWeight, product of:
               2.1061554 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.018538738 = queryNorm
             0.40520364 = fieldWeight in 2287, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
         0.2462056 = weight(abstract_txt:descriptors in 2287) [ClassicSimilarity], result of:
           0.2462056 = score(doc=2287,freq=1.0), product of:
             0.47286737 = queryWeight, product of:
               3.8272836 = boost
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.018538738 = queryNorm
             0.5206652 = fieldWeight in 2287, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.078125 = fieldNorm(doc=2287)
       0.32 = coord(8/25)
   

3. MacCain, K.W.; White, H.D.; Griffith, B.C.: Comparing retrieval performance in online data bases (1987) 0.18

   0.17540756 = sum of:
     0.17540756 = product of:
       0.62645555 = sum of:
         0.014828661 = weight(abstract_txt:from in 2167) [ClassicSimilarity], result of:
           0.014828661 = score(doc=2167,freq=2.0), product of:
             0.060798444 = queryWeight, product of:
               1.1884962 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018538738 = queryNorm
             0.2438987 = fieldWeight in 2167, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
         0.04744313 = weight(abstract_txt:indexing in 2167) [ClassicSimilarity], result of:
           0.04744313 = score(doc=2167,freq=3.0), product of:
             0.10074246 = queryWeight, product of:
               1.2491432 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.018538738 = queryNorm
             0.4709348 = fieldWeight in 2167, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
         0.08258049 = weight(abstract_txt:references in 2167) [ClassicSimilarity], result of:
           0.08258049 = score(doc=2167,freq=2.0), product of:
             0.16687031 = queryWeight, product of:
               1.6076648 = boost
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.018538738 = queryNorm
             0.4948783 = fieldWeight in 2167, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
         0.061776426 = weight(abstract_txt:retrieved in 2167) [ClassicSimilarity], result of:
           0.061776426 = score(doc=2167,freq=1.0), product of:
             0.17325506 = queryWeight, product of:
               1.6381322 = boost
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.018538738 = queryNorm
             0.35656348 = fieldWeight in 2167, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7050157 = idf(docFreq=401, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
         0.07562965 = weight(abstract_txt:indexed in 2167) [ClassicSimilarity], result of:
           0.07562965 = score(doc=2167,freq=1.0), product of:
             0.19827387 = queryWeight, product of:
               1.752422 = boost
               6.1030455 = idf(docFreq=269, maxDocs=44421)
               0.018538738 = queryNorm
             0.38144034 = fieldWeight in 2167, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1030455 = idf(docFreq=269, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
         0.065647356 = weight(abstract_txt:were in 2167) [ClassicSimilarity], result of:
           0.065647356 = score(doc=2167,freq=4.0), product of:
             0.14319864 = queryWeight, product of:
               2.1061554 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.018538738 = queryNorm
             0.4584356 = fieldWeight in 2167, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
         0.27854982 = weight(abstract_txt:descriptors in 2167) [ClassicSimilarity], result of:
           0.27854982 = score(doc=2167,freq=2.0), product of:
             0.47286737 = queryWeight, product of:
               3.8272836 = boost
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.018538738 = queryNorm
             0.58906543 = fieldWeight in 2167, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.0625 = fieldNorm(doc=2167)
       0.28 = coord(7/25)
   

4. Kipp, M.E.I.: Tagging of biomedical articles on CiteULike : a comparison of user, author and professional indexing (2011) 0.14

   0.14380299 = sum of:
     0.14380299 = product of:
       0.5135821 = sum of:
         0.016239444 = weight(abstract_txt:search in 557) [ClassicSimilarity], result of:
           0.016239444 = score(doc=557,freq=1.0), product of:
             0.07109704 = queryWeight, product of:
               1.0493774 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.018538738 = queryNorm
             0.22841237 = fieldWeight in 557, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
         0.014828661 = weight(abstract_txt:from in 557) [ClassicSimilarity], result of:
           0.014828661 = score(doc=557,freq=2.0), product of:
             0.060798444 = queryWeight, product of:
               1.1884962 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018538738 = queryNorm
             0.2438987 = fieldWeight in 557, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
         0.04744313 = weight(abstract_txt:indexing in 557) [ClassicSimilarity], result of:
           0.04744313 = score(doc=557,freq=3.0), product of:
             0.10074246 = queryWeight, product of:
               1.2491432 = boost
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.018538738 = queryNorm
             0.4709348 = fieldWeight in 557, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.3503094 = idf(docFreq=1557, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
         0.015244057 = weight(abstract_txt:that in 557) [ClassicSimilarity], result of:
           0.015244057 = score(doc=557,freq=3.0), product of:
             0.059544373 = queryWeight, product of:
               1.35813 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018538738 = queryNorm
             0.25601172 = fieldWeight in 557, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
         0.07562965 = weight(abstract_txt:indexed in 557) [ClassicSimilarity], result of:
           0.07562965 = score(doc=557,freq=1.0), product of:
             0.19827387 = queryWeight, product of:
               1.752422 = boost
               6.1030455 = idf(docFreq=269, maxDocs=44421)
               0.018538738 = queryNorm
             0.38144034 = fieldWeight in 557, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1030455 = idf(docFreq=269, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
         0.065647356 = weight(abstract_txt:were in 557) [ClassicSimilarity], result of:
           0.065647356 = score(doc=557,freq=4.0), product of:
             0.14319864 = queryWeight, product of:
               2.1061554 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.018538738 = queryNorm
             0.4584356 = fieldWeight in 557, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
         0.27854982 = weight(abstract_txt:descriptors in 557) [ClassicSimilarity], result of:
           0.27854982 = score(doc=557,freq=2.0), product of:
             0.47286737 = queryWeight, product of:
               3.8272836 = boost
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.018538738 = queryNorm
             0.58906543 = fieldWeight in 557, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.0625 = fieldNorm(doc=557)
       0.28 = coord(7/25)
   

5. Harter, S.P.; Cheng, Y.-R.: Colinked descriptors : improving vocabulary selection for end-user searching (1996) 0.14

   0.14036386 = sum of:
     0.14036386 = product of:
       0.70181924 = sum of:
         0.035159424 = weight(abstract_txt:search in 4284) [ClassicSimilarity], result of:
           0.035159424 = score(doc=4284,freq=3.0), product of:
             0.07109704 = queryWeight, product of:
               1.0493774 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.018538738 = queryNorm
             0.49452728 = fieldWeight in 4284, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=4284)
         0.018535826 = weight(abstract_txt:from in 4284) [ClassicSimilarity], result of:
           0.018535826 = score(doc=4284,freq=2.0), product of:
             0.060798444 = queryWeight, product of:
               1.1884962 = boost
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.018538738 = queryNorm
             0.30487338 = fieldWeight in 4284, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.759399 = idf(docFreq=7646, maxDocs=44421)
               0.078125 = fieldNorm(doc=4284)
         0.024599995 = weight(abstract_txt:that in 4284) [ClassicSimilarity], result of:
           0.024599995 = score(doc=4284,freq=5.0), product of:
             0.059544373 = queryWeight, product of:
               1.35813 = boost
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.018538738 = queryNorm
             0.4131372 = fieldWeight in 4284, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.3649352 = idf(docFreq=11344, maxDocs=44421)
               0.078125 = fieldNorm(doc=4284)
         0.072991535 = weight(abstract_txt:references in 4284) [ClassicSimilarity], result of:
           0.072991535 = score(doc=4284,freq=1.0), product of:
             0.16687031 = queryWeight, product of:
               1.6076648 = boost
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.018538738 = queryNorm
             0.43741477 = fieldWeight in 4284, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.598909 = idf(docFreq=446, maxDocs=44421)
               0.078125 = fieldNorm(doc=4284)
         0.55053246 = weight(abstract_txt:descriptors in 4284) [ClassicSimilarity], result of:
           0.55053246 = score(doc=4284,freq=5.0), product of:
             0.47286737 = queryWeight, product of:
               3.8272836 = boost
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.018538738 = queryNorm
             1.1642429 = fieldWeight in 4284, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.664515 = idf(docFreq=153, maxDocs=44421)
               0.078125 = fieldNorm(doc=4284)
       0.2 = coord(5/25)