Document (#21447)

Author

Hirawa, M.

Title

Role of keywords in the network searching era

Source

Igaku Toshokan (Journal of the Japan Medical Library Association). 45(1998) no.2, S.222-227

Year

1998

Abstract

A survey of Japanese OPACs available on the Internet was conducted relating to use of keywords for subject access. The findings suggest that present OPACs are not capable of storing subject-oriented information. Currently available keyword access derives from a merely title-based retrieval system. Contents data should be added to bibliographic records as an efficient way of providing subject access, and costings for this process should be estimated. Word standardisation issues must also be addressed

Footnote

[In Japanisch]

Theme

OPAC
Internet
Automatisches Indexieren

Location

Japan

Similar documents (content)

1. Takano, M.: OPACs in university libraries (1994) 0.24

   0.24117665 = sum of:
     0.24117665 = product of:
       1.0049027 = sum of:
         0.23919263 = weight(abstract_txt:japanese in 939) [ClassicSimilarity], result of:
           0.23919263 = score(doc=939,freq=1.0), product of:
             0.25099143 = queryWeight, product of:
               1.501934 = boost
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.021919424 = queryNorm
             0.95299125 = fieldWeight in 939, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.62393 = idf(docFreq=58, maxDocs=44421)
               0.125 = fieldNorm(doc=939)
         0.28303725 = weight(abstract_txt:standardisation in 939) [ClassicSimilarity], result of:
           0.28303725 = score(doc=939,freq=1.0), product of:
             0.28079504 = queryWeight, product of:
               1.5886058 = boost
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.021919424 = queryNorm
             1.0079852 = fieldWeight in 939, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.063882 = idf(docFreq=37, maxDocs=44421)
               0.125 = fieldNorm(doc=939)
         0.08610235 = weight(abstract_txt:available in 939) [ClassicSimilarity], result of:
           0.08610235 = score(doc=939,freq=1.0), product of:
             0.16002224 = queryWeight, product of:
               1.696003 = boost
               4.304519 = idf(docFreq=1630, maxDocs=44421)
               0.021919424 = queryNorm
             0.5380649 = fieldWeight in 939, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.304519 = idf(docFreq=1630, maxDocs=44421)
               0.125 = fieldNorm(doc=939)
         0.07881295 = weight(abstract_txt:access in 939) [ClassicSimilarity], result of:
           0.07881295 = score(doc=939,freq=1.0), product of:
             0.17268947 = queryWeight, product of:
               2.1578188 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.021919424 = queryNorm
             0.4563854 = fieldWeight in 939, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.125 = fieldNorm(doc=939)
         0.09679307 = weight(abstract_txt:subject in 939) [ClassicSimilarity], result of:
           0.09679307 = score(doc=939,freq=1.0), product of:
             0.19804488 = queryWeight, product of:
               2.310808 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.021919424 = queryNorm
             0.4887431 = fieldWeight in 939, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.125 = fieldNorm(doc=939)
         0.2209644 = weight(abstract_txt:opacs in 939) [ClassicSimilarity], result of:
           0.2209644 = score(doc=939,freq=1.0), product of:
             0.2999521 = queryWeight, product of:
               2.3220007 = boost
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.021919424 = queryNorm
             0.73666567 = fieldWeight in 939, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.125 = fieldNorm(doc=939)
       0.24 = coord(6/25)
   

2. Beagle, D.: Visualizing keyword distribution across multidisciplinary c-space (2003) 0.17

   0.167737 = sum of:
     0.167737 = product of:
       0.41934252 = sum of:
         0.030690245 = weight(abstract_txt:word in 2202) [ClassicSimilarity], result of:
           0.030690245 = score(doc=2202,freq=2.0), product of:
             0.12769991 = queryWeight, product of:
               1.0713139 = boost
               5.4380693 = idf(docFreq=524, maxDocs=44421)
               0.021919424 = queryNorm
             0.24033098 = fieldWeight in 2202, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4380693 = idf(docFreq=524, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.04380138 = weight(abstract_txt:title in 2202) [ClassicSimilarity], result of:
           0.04380138 = score(doc=2202,freq=3.0), product of:
             0.14141163 = queryWeight, product of:
               1.1273636 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.021919424 = queryNorm
             0.30974382 = fieldWeight in 2202, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.02612889 = weight(abstract_txt:efficient in 2202) [ClassicSimilarity], result of:
           0.02612889 = score(doc=2202,freq=1.0), product of:
             0.14452656 = queryWeight, product of:
               1.1397123 = boost
               5.7852654 = idf(docFreq=370, maxDocs=44421)
               0.021919424 = queryNorm
             0.18078955 = fieldWeight in 2202, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7852654 = idf(docFreq=370, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.059425086 = weight(abstract_txt:keyword in 2202) [ClassicSimilarity], result of:
           0.059425086 = score(doc=2202,freq=4.0), product of:
             0.15745637 = queryWeight, product of:
               1.1896015 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021919424 = queryNorm
             0.3774067 = fieldWeight in 2202, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.030130336 = weight(abstract_txt:relating in 2202) [ClassicSimilarity], result of:
           0.030130336 = score(doc=2202,freq=1.0), product of:
             0.15892895 = queryWeight, product of:
               1.1951513 = boost
               6.066678 = idf(docFreq=279, maxDocs=44421)
               0.021919424 = queryNorm
             0.18958369 = fieldWeight in 2202, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.066678 = idf(docFreq=279, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.021525588 = weight(abstract_txt:available in 2202) [ClassicSimilarity], result of:
           0.021525588 = score(doc=2202,freq=1.0), product of:
             0.16002224 = queryWeight, product of:
               1.696003 = boost
               4.304519 = idf(docFreq=1630, maxDocs=44421)
               0.021919424 = queryNorm
             0.13451622 = fieldWeight in 2202, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.304519 = idf(docFreq=1630, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.027864585 = weight(abstract_txt:access in 2202) [ClassicSimilarity], result of:
           0.027864585 = score(doc=2202,freq=2.0), product of:
             0.17268947 = queryWeight, product of:
               2.1578188 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.021919424 = queryNorm
             0.1613566 = fieldWeight in 2202, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.041912626 = weight(abstract_txt:subject in 2202) [ClassicSimilarity], result of:
           0.041912626 = score(doc=2202,freq=3.0), product of:
             0.19804488 = queryWeight, product of:
               2.310808 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.021919424 = queryNorm
             0.21163197 = fieldWeight in 2202, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.0552411 = weight(abstract_txt:opacs in 2202) [ClassicSimilarity], result of:
           0.0552411 = score(doc=2202,freq=1.0), product of:
             0.2999521 = queryWeight, product of:
               2.3220007 = boost
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.021919424 = queryNorm
             0.18416642 = fieldWeight in 2202, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
         0.08262269 = weight(abstract_txt:keywords in 2202) [ClassicSimilarity], result of:
           0.08262269 = score(doc=2202,freq=2.0), product of:
             0.31136268 = queryWeight, product of:
               2.3657546 = boost
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.021919424 = queryNorm
             0.26535836 = fieldWeight in 2202, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.03125 = fieldNorm(doc=2202)
       0.4 = coord(10/25)
   

3. Voorbij, H.: Title keywords and subject descriptors : a comparison of subject search entries of books in the humanities and social sciences (1998) 0.15

   0.1481165 = sum of:
     0.1481165 = product of:
       0.6171521 = sum of:
         0.03797724 = weight(abstract_txt:word in 5721) [ClassicSimilarity], result of:
           0.03797724 = score(doc=5721,freq=1.0), product of:
             0.12769991 = queryWeight, product of:
               1.0713139 = boost
               5.4380693 = idf(docFreq=524, maxDocs=44421)
               0.021919424 = queryNorm
             0.29739442 = fieldWeight in 5721, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4380693 = idf(docFreq=524, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.13276587 = weight(abstract_txt:title in 5721) [ClassicSimilarity], result of:
           0.13276587 = score(doc=5721,freq=9.0), product of:
             0.14141163 = queryWeight, product of:
               1.1273636 = boost
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.021919424 = queryNorm
             0.9388611 = fieldWeight in 5721, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.722582 = idf(docFreq=394, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.073534794 = weight(abstract_txt:keyword in 5721) [ClassicSimilarity], result of:
           0.073534794 = score(doc=5721,freq=2.0), product of:
             0.15745637 = queryWeight, product of:
               1.1896015 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021919424 = queryNorm
             0.46701697 = fieldWeight in 5721, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.03448067 = weight(abstract_txt:access in 5721) [ClassicSimilarity], result of:
           0.03448067 = score(doc=5721,freq=1.0), product of:
             0.17268947 = queryWeight, product of:
               2.1578188 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.021919424 = queryNorm
             0.19966862 = fieldWeight in 5721, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.13391286 = weight(abstract_txt:subject in 5721) [ClassicSimilarity], result of:
           0.13391286 = score(doc=5721,freq=10.0), product of:
             0.19804488 = queryWeight, product of:
               2.310808 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.021919424 = queryNorm
             0.67617434 = fieldWeight in 5721, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
         0.20448071 = weight(abstract_txt:keywords in 5721) [ClassicSimilarity], result of:
           0.20448071 = score(doc=5721,freq=4.0), product of:
             0.31136268 = queryWeight, product of:
               2.3657546 = boost
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.021919424 = queryNorm
             0.6567284 = fieldWeight in 5721, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               6.004374 = idf(docFreq=297, maxDocs=44421)
               0.0546875 = fieldNorm(doc=5721)
       0.24 = coord(6/25)
   

4. Tillotson, J.: Is keyword searching the answer? (1995) 0.13

   0.13323276 = sum of:
     0.13323276 = product of:
       0.6661638 = sum of:
         0.065035515 = weight(abstract_txt:currently in 1925) [ClassicSimilarity], result of:
           0.065035515 = score(doc=1925,freq=1.0), product of:
             0.12761055 = queryWeight, product of:
               1.070939 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.021919424 = queryNorm
             0.5096406 = fieldWeight in 1925, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.09375 = fieldNorm(doc=1925)
         0.21834172 = weight(abstract_txt:keyword in 1925) [ClassicSimilarity], result of:
           0.21834172 = score(doc=1925,freq=6.0), product of:
             0.15745637 = queryWeight, product of:
               1.1896015 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021919424 = queryNorm
             1.3866808 = fieldWeight in 1925, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.09375 = fieldNorm(doc=1925)
         0.091325335 = weight(abstract_txt:available in 1925) [ClassicSimilarity], result of:
           0.091325335 = score(doc=1925,freq=2.0), product of:
             0.16002224 = queryWeight, product of:
               1.696003 = boost
               4.304519 = idf(docFreq=1630, maxDocs=44421)
               0.021919424 = queryNorm
             0.570704 = fieldWeight in 1925, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.304519 = idf(docFreq=1630, maxDocs=44421)
               0.09375 = fieldNorm(doc=1925)
         0.12573789 = weight(abstract_txt:subject in 1925) [ClassicSimilarity], result of:
           0.12573789 = score(doc=1925,freq=3.0), product of:
             0.19804488 = queryWeight, product of:
               2.310808 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.021919424 = queryNorm
             0.6348959 = fieldWeight in 1925, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.09375 = fieldNorm(doc=1925)
         0.1657233 = weight(abstract_txt:opacs in 1925) [ClassicSimilarity], result of:
           0.1657233 = score(doc=1925,freq=1.0), product of:
             0.2999521 = queryWeight, product of:
               2.3220007 = boost
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.021919424 = queryNorm
             0.55249923 = fieldWeight in 1925, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.09375 = fieldNorm(doc=1925)
       0.2 = coord(5/25)
   

5. Pienaar, R.E.: Enhancement of subject access in online public access catalogues (OPACs) (1989) 0.12

   0.123520754 = sum of:
     0.123520754 = product of:
       0.6176038 = sum of:
         0.07428136 = weight(abstract_txt:keyword in 2931) [ClassicSimilarity], result of:
           0.07428136 = score(doc=2931,freq=1.0), product of:
             0.15745637 = queryWeight, product of:
               1.1896015 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021919424 = queryNorm
             0.47175837 = fieldWeight in 2931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.078125 = fieldNorm(doc=2931)
         0.058704562 = weight(abstract_txt:should in 2931) [ClassicSimilarity], result of:
           0.058704562 = score(doc=2931,freq=1.0), product of:
             0.16957621 = queryWeight, product of:
               1.745898 = boost
               4.4311547 = idf(docFreq=1436, maxDocs=44421)
               0.021919424 = queryNorm
             0.34618396 = fieldWeight in 2931, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4311547 = idf(docFreq=1436, maxDocs=44421)
               0.078125 = fieldNorm(doc=2931)
         0.110144444 = weight(abstract_txt:access in 2931) [ClassicSimilarity], result of:
           0.110144444 = score(doc=2931,freq=5.0), product of:
             0.17268947 = queryWeight, product of:
               2.1578188 = boost
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.021919424 = queryNorm
             0.637818 = fieldWeight in 2931, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.6510832 = idf(docFreq=3134, maxDocs=44421)
               0.078125 = fieldNorm(doc=2931)
         0.13527244 = weight(abstract_txt:subject in 2931) [ClassicSimilarity], result of:
           0.13527244 = score(doc=2931,freq=5.0), product of:
             0.19804488 = queryWeight, product of:
               2.310808 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.021919424 = queryNorm
             0.6830393 = fieldWeight in 2931, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.078125 = fieldNorm(doc=2931)
         0.23920098 = weight(abstract_txt:opacs in 2931) [ClassicSimilarity], result of:
           0.23920098 = score(doc=2931,freq=3.0), product of:
             0.2999521 = queryWeight, product of:
               2.3220007 = boost
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.021919424 = queryNorm
             0.79746395 = fieldWeight in 2931, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.8933253 = idf(docFreq=332, maxDocs=44421)
               0.078125 = fieldNorm(doc=2931)
       0.2 = coord(5/25)