Document (#824)

Author

Rada, R.

Title

Connecting and evaluating thesauri : issues and cases

Source

International classification. 14(1987), S.63-69

Year

1987

Abstract

Connecting and evaluating thesauri is an important task for the systematic development of better information retrieval systems. Connecting thesauri includes not only determining when terms in different thesauri are the same but also determining what kinds of relationships can be transferred from one thesaurus to another. This paper first presents issues in connecting and evaluating thesauri. Various experiments in connecting a particular thesaurus, the Medical Subject Headings, with other medical thesauri are described. In these experiments, similar terms in two thesauri are recognized and then differences in two thesauri are exploited to create more powerful thesauri. Part of the evaluation requires the thesaurus to support automatic indexing and retrieving of documents

Theme

Konzeption und Anwendung des Prinzips Thesaurus

Similar documents (author)

1. Rada, R.: Writing and reading hypertext : an overview (1989) 5.10

   5.0971513 = sum of:
     5.0971513 = weight(author_txt:rada in 738) [ClassicSimilarity], result of:
       5.0971513 = fieldWeight in 738, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.155442 = idf(docFreq=33, maxDocs=43556)
         0.625 = fieldNorm(doc=738)
   

2. Rada, R.: Maintaining thesauri and metathesauri (1990) 5.10

   5.0971513 = sum of:
     5.0971513 = weight(author_txt:rada in 2223) [ClassicSimilarity], result of:
       5.0971513 = fieldWeight in 2223, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.155442 = idf(docFreq=33, maxDocs=43556)
         0.625 = fieldNorm(doc=2223)
   

3. Rada, R.: Small, medium, and large hypertext (1991) 5.10

   5.0971513 = sum of:
     5.0971513 = weight(author_txt:rada in 3834) [ClassicSimilarity], result of:
       5.0971513 = fieldWeight in 3834, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.155442 = idf(docFreq=33, maxDocs=43556)
         0.625 = fieldNorm(doc=3834)
   

4. Rada, R.: ¬The GALEN dream (1992) 5.10

   5.0971513 = sum of:
     5.0971513 = weight(author_txt:rada in 4250) [ClassicSimilarity], result of:
       5.0971513 = fieldWeight in 4250, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.155442 = idf(docFreq=33, maxDocs=43556)
         0.625 = fieldNorm(doc=4250)
   

5. Rada, R.: Medical knowledge and hypermedia (1992) 5.10

   5.0971513 = sum of:
     5.0971513 = weight(author_txt:rada in 4279) [ClassicSimilarity], result of:
       5.0971513 = fieldWeight in 4279, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.155442 = idf(docFreq=33, maxDocs=43556)
         0.625 = fieldNorm(doc=4279)
   

Similar documents (content)

1. Spiteri, L.F.: ¬The essential elements of faceted thesauri (1999) 0.20

   0.19629073 = sum of:
     0.19629073 = product of:
       0.98145366 = sum of:
         0.031575542 = weight(abstract_txt:cases in 360) [ClassicSimilarity], result of:
           0.031575542 = score(doc=360,freq=1.0), product of:
             0.07118227 = queryWeight, product of:
               1.1413033 = boost
               5.6779156 = idf(docFreq=404, maxDocs=43556)
               0.01098454 = queryNorm
             0.44358715 = fieldWeight in 360, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6779156 = idf(docFreq=404, maxDocs=43556)
               0.078125 = fieldNorm(doc=360)
         0.03533577 = weight(abstract_txt:systematic in 360) [ClassicSimilarity], result of:
           0.03533577 = score(doc=360,freq=1.0), product of:
             0.076726906 = queryWeight, product of:
               1.1849198 = boost
               5.8949056 = idf(docFreq=325, maxDocs=43556)
               0.01098454 = queryNorm
             0.4605395 = fieldWeight in 360, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8949056 = idf(docFreq=325, maxDocs=43556)
               0.078125 = fieldNorm(doc=360)
         0.022990493 = weight(abstract_txt:terms in 360) [ClassicSimilarity], result of:
           0.022990493 = score(doc=360,freq=1.0), product of:
             0.072584994 = queryWeight, product of:
               1.6298722 = boost
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.01098454 = queryNorm
             0.31673893 = fieldWeight in 360, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.078125 = fieldNorm(doc=360)
         0.10391173 = weight(abstract_txt:evaluating in 360) [ClassicSimilarity], result of:
           0.10391173 = score(doc=360,freq=1.0), product of:
             0.22713712 = queryWeight, product of:
               3.5311797 = boost
               5.8558025 = idf(docFreq=338, maxDocs=43556)
               0.01098454 = queryNorm
             0.45748457 = fieldWeight in 360, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8558025 = idf(docFreq=338, maxDocs=43556)
               0.078125 = fieldNorm(doc=360)
         0.78764015 = weight(abstract_txt:thesauri in 360) [ClassicSimilarity], result of:
           0.78764015 = score(doc=360,freq=10.0), product of:
             0.58672875 = queryWeight, product of:
               9.830035 = boost
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.01098454 = queryNorm
             1.3424264 = fieldWeight in 360, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.078125 = fieldNorm(doc=360)
       0.2 = coord(5/25)
   

2. Willis, C.; Losee, R.M.: ¬A random walk on an ontology : using thesaurus structure for automatic subject indexing (2013) 0.18

   0.17760195 = sum of:
     0.17760195 = product of:
       0.63429266 = sum of:
         0.01658662 = weight(abstract_txt:headings in 3014) [ClassicSimilarity], result of:
           0.01658662 = score(doc=3014,freq=1.0), product of:
             0.058782026 = queryWeight, product of:
               1.03714 = boost
               5.15971 = idf(docFreq=679, maxDocs=43556)
               0.01098454 = queryNorm
             0.28217164 = fieldWeight in 3014, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.15971 = idf(docFreq=679, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
         0.023950506 = weight(abstract_txt:automatic in 3014) [ClassicSimilarity], result of:
           0.023950506 = score(doc=3014,freq=2.0), product of:
             0.05960359 = queryWeight, product of:
               1.0443627 = boost
               5.195642 = idf(docFreq=655, maxDocs=43556)
               0.01098454 = queryNorm
             0.40182993 = fieldWeight in 3014, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.195642 = idf(docFreq=655, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
         0.022102877 = weight(abstract_txt:cases in 3014) [ClassicSimilarity], result of:
           0.022102877 = score(doc=3014,freq=1.0), product of:
             0.07118227 = queryWeight, product of:
               1.1413033 = boost
               5.6779156 = idf(docFreq=404, maxDocs=43556)
               0.01098454 = queryNorm
             0.310511 = fieldWeight in 3014, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6779156 = idf(docFreq=404, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
         0.022759426 = weight(abstract_txt:terms in 3014) [ClassicSimilarity], result of:
           0.022759426 = score(doc=3014,freq=2.0), product of:
             0.072584994 = queryWeight, product of:
               1.6298722 = boost
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.01098454 = queryNorm
             0.31355554 = fieldWeight in 3014, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
         0.047286674 = weight(abstract_txt:medical in 3014) [ClassicSimilarity], result of:
           0.047286674 = score(doc=3014,freq=1.0), product of:
             0.14890473 = queryWeight, product of:
               2.3344488 = boost
               5.806872 = idf(docFreq=355, maxDocs=43556)
               0.01098454 = queryNorm
             0.3175633 = fieldWeight in 3014, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.806872 = idf(docFreq=355, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
         0.111744575 = weight(abstract_txt:thesaurus in 3014) [ClassicSimilarity], result of:
           0.111744575 = score(doc=3014,freq=5.0), product of:
             0.17685093 = queryWeight, product of:
               3.1158707 = boost
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.01098454 = queryNorm
             0.63185745 = fieldWeight in 3014, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
         0.38986197 = weight(abstract_txt:thesauri in 3014) [ClassicSimilarity], result of:
           0.38986197 = score(doc=3014,freq=5.0), product of:
             0.58672875 = queryWeight, product of:
               9.830035 = boost
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.01098454 = queryNorm
             0.66446716 = fieldWeight in 3014, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.0546875 = fieldNorm(doc=3014)
       0.28 = coord(7/25)
   

3. Kless, D.; Milton, S.; Kazmierczak, E.; Lindenthal, J.: Thesaurus and ontology structure : formal and pragmatic differences and similarities (2015) 0.16

   0.15602349 = sum of:
     0.15602349 = product of:
       0.6500979 = sum of:
         0.01699173 = weight(abstract_txt:differences in 4034) [ClassicSimilarity], result of:
           0.01699173 = score(doc=4034,freq=1.0), product of:
             0.05464743 = queryWeight, product of:
               4.9749403 = idf(docFreq=817, maxDocs=43556)
               0.01098454 = queryNorm
             0.31093377 = fieldWeight in 4034, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9749403 = idf(docFreq=817, maxDocs=43556)
               0.0625 = fieldNorm(doc=4034)
         0.01970302 = weight(abstract_txt:similar in 4034) [ClassicSimilarity], result of:
           0.01970302 = score(doc=4034,freq=1.0), product of:
             0.06031609 = queryWeight, product of:
               1.0505862 = boost
               5.226604 = idf(docFreq=635, maxDocs=43556)
               0.01098454 = queryNorm
             0.32666275 = fieldWeight in 4034, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.226604 = idf(docFreq=635, maxDocs=43556)
               0.0625 = fieldNorm(doc=4034)
         0.026560798 = weight(abstract_txt:requires in 4034) [ClassicSimilarity], result of:
           0.026560798 = score(doc=4034,freq=1.0), product of:
             0.07360467 = queryWeight, product of:
               1.1605606 = boost
               5.77372 = idf(docFreq=367, maxDocs=43556)
               0.01098454 = queryNorm
             0.3608575 = fieldWeight in 4034, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.77372 = idf(docFreq=367, maxDocs=43556)
               0.0625 = fieldNorm(doc=4034)
         0.027060242 = weight(abstract_txt:kinds in 4034) [ClassicSimilarity], result of:
           0.027060242 = score(doc=4034,freq=1.0), product of:
             0.07452451 = queryWeight, product of:
               1.1677898 = boost
               5.8096848 = idf(docFreq=354, maxDocs=43556)
               0.01098454 = queryNorm
             0.3631053 = fieldWeight in 4034, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8096848 = idf(docFreq=354, maxDocs=43556)
               0.0625 = fieldNorm(doc=4034)
         0.11422558 = weight(abstract_txt:thesaurus in 4034) [ClassicSimilarity], result of:
           0.11422558 = score(doc=4034,freq=4.0), product of:
             0.17685093 = queryWeight, product of:
               3.1158707 = boost
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.01098454 = queryNorm
             0.64588624 = fieldWeight in 4034, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.0625 = fieldNorm(doc=4034)
         0.44555655 = weight(abstract_txt:thesauri in 4034) [ClassicSimilarity], result of:
           0.44555655 = score(doc=4034,freq=5.0), product of:
             0.58672875 = queryWeight, product of:
               9.830035 = boost
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.01098454 = queryNorm
             0.759391 = fieldWeight in 4034, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.0625 = fieldNorm(doc=4034)
       0.24 = coord(6/25)
   

4. Rada, R.: Maintaining thesauri and metathesauri (1990) 0.16

   0.15513538 = sum of:
     0.15513538 = product of:
       0.6463974 = sum of:
         0.023695173 = weight(abstract_txt:headings in 2223) [ClassicSimilarity], result of:
           0.023695173 = score(doc=2223,freq=1.0), product of:
             0.058782026 = queryWeight, product of:
               1.03714 = boost
               5.15971 = idf(docFreq=679, maxDocs=43556)
               0.01098454 = queryNorm
             0.40310234 = fieldWeight in 2223, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.15971 = idf(docFreq=679, maxDocs=43556)
               0.078125 = fieldNorm(doc=2223)
         0.028282057 = weight(abstract_txt:another in 2223) [ClassicSimilarity], result of:
           0.028282057 = score(doc=2223,freq=1.0), product of:
             0.0661422 = queryWeight, product of:
               1.1001564 = boost
               5.4732127 = idf(docFreq=496, maxDocs=43556)
               0.01098454 = queryNorm
             0.42759475 = fieldWeight in 2223, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4732127 = idf(docFreq=496, maxDocs=43556)
               0.078125 = fieldNorm(doc=2223)
         0.022990493 = weight(abstract_txt:terms in 2223) [ClassicSimilarity], result of:
           0.022990493 = score(doc=2223,freq=1.0), product of:
             0.072584994 = queryWeight, product of:
               1.6298722 = boost
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.01098454 = queryNorm
             0.31673893 = fieldWeight in 2223, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.078125 = fieldNorm(doc=2223)
         0.09553352 = weight(abstract_txt:medical in 2223) [ClassicSimilarity], result of:
           0.09553352 = score(doc=2223,freq=2.0), product of:
             0.14890473 = queryWeight, product of:
               2.3344488 = boost
               5.806872 = idf(docFreq=355, maxDocs=43556)
               0.01098454 = queryNorm
             0.6415748 = fieldWeight in 2223, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.806872 = idf(docFreq=355, maxDocs=43556)
               0.078125 = fieldNorm(doc=2223)
         0.123652816 = weight(abstract_txt:thesaurus in 2223) [ClassicSimilarity], result of:
           0.123652816 = score(doc=2223,freq=3.0), product of:
             0.17685093 = queryWeight, product of:
               3.1158707 = boost
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.01098454 = queryNorm
             0.69919235 = fieldWeight in 2223, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.078125 = fieldNorm(doc=2223)
         0.35224336 = weight(abstract_txt:thesauri in 2223) [ClassicSimilarity], result of:
           0.35224336 = score(doc=2223,freq=2.0), product of:
             0.58672875 = queryWeight, product of:
               9.830035 = boost
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.01098454 = queryNorm
             0.6003513 = fieldWeight in 2223, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.078125 = fieldNorm(doc=2223)
       0.24 = coord(6/25)
   

5. Jones, S.: ¬A thesaurus data model for an intelligent retrieval system (1993) 0.15

   0.15360202 = sum of:
     0.15360202 = product of:
       0.64000845 = sum of:
         0.021239664 = weight(abstract_txt:differences in 5276) [ClassicSimilarity], result of:
           0.021239664 = score(doc=5276,freq=1.0), product of:
             0.05464743 = queryWeight, product of:
               4.9749403 = idf(docFreq=817, maxDocs=43556)
               0.01098454 = queryNorm
             0.38866723 = fieldWeight in 5276, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9749403 = idf(docFreq=817, maxDocs=43556)
               0.078125 = fieldNorm(doc=5276)
         0.024193665 = weight(abstract_txt:automatic in 5276) [ClassicSimilarity], result of:
           0.024193665 = score(doc=5276,freq=1.0), product of:
             0.05960359 = queryWeight, product of:
               1.0443627 = boost
               5.195642 = idf(docFreq=655, maxDocs=43556)
               0.01098454 = queryNorm
             0.40590954 = fieldWeight in 5276, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.195642 = idf(docFreq=655, maxDocs=43556)
               0.078125 = fieldNorm(doc=5276)
         0.039820705 = weight(abstract_txt:terms in 5276) [ClassicSimilarity], result of:
           0.039820705 = score(doc=5276,freq=3.0), product of:
             0.072584994 = queryWeight, product of:
               1.6298722 = boost
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.01098454 = queryNorm
             0.54860795 = fieldWeight in 5276, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.0542583 = idf(docFreq=2053, maxDocs=43556)
               0.078125 = fieldNorm(doc=5276)
         0.02763954 = weight(abstract_txt:issues in 5276) [ClassicSimilarity], result of:
           0.02763954 = score(doc=5276,freq=1.0), product of:
             0.08206699 = queryWeight, product of:
               1.7330631 = boost
               4.3109426 = idf(docFreq=1588, maxDocs=43556)
               0.01098454 = queryNorm
             0.3367924 = fieldWeight in 5276, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3109426 = idf(docFreq=1588, maxDocs=43556)
               0.078125 = fieldNorm(doc=5276)
         0.1748715 = weight(abstract_txt:thesaurus in 5276) [ClassicSimilarity], result of:
           0.1748715 = score(doc=5276,freq=6.0), product of:
             0.17685093 = queryWeight, product of:
               3.1158707 = boost
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.01098454 = queryNorm
             0.9888074 = fieldWeight in 5276, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.16709 = idf(docFreq=674, maxDocs=43556)
               0.078125 = fieldNorm(doc=5276)
         0.35224336 = weight(abstract_txt:thesauri in 5276) [ClassicSimilarity], result of:
           0.35224336 = score(doc=5276,freq=2.0), product of:
             0.58672875 = queryWeight, product of:
               9.830035 = boost
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.01098454 = queryNorm
             0.6003513 = fieldWeight in 5276, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4337597 = idf(docFreq=516, maxDocs=43556)
               0.078125 = fieldNorm(doc=5276)
       0.24 = coord(6/25)