Document (#32057)

Author

Shiri, A.A.
Revie, C.

Title

Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation

Source

Journal of the American Society for Information Science and Technology. 57(2006) no.4, S.462-478

Year

2006

Abstract

The study reported here investigated the query expansion behavior of end-users interacting with a thesaurus-enhanced search system on the Web. Two groups, namely academic staff and postgraduate students, were recruited into this study. Data were collected from 90 searches performed by 30 users using the OVID interface to the CAB abstracts database. Data-gathering techniques included questionnaires, screen capturing software, and interviews. The results presented here relate to issues of search-topic and search-term characteristics, number and types of expanded queries, usefulness of thesaurus terms, and behavioral differences between academic staff and postgraduate students in their interaction. The key conclusions drawn were that (a) academic staff chose more narrow and synonymous terms than did postgraduate students, who generally selected broader and related terms; (b) topic complexity affected users' interaction with the thesaurus in that complex topics required more query expansion and search term selection; (c) users' prior topic-search experience appeared to have a significant effect on their selection and evaluation of thesaurus terms; (d) in 50% of the searches where additional terms were suggested from the thesaurus, users stated that they had not been aware of the terms at the beginning of the search; this observation was particularly noticeable in the case of postgraduate students.

Theme

Retrievalalgorithmen
Semantisches Umfeld in Indexierung u. Retrieval
Benutzerstudien

Similar documents (author)

1. Shiri, A.A.; Revie, C.: End-user interaction with thesauri : an evaluation of cognitive overlap in search term selection (2004) 6.40

   6.4046516 = sum of:
     6.4046516 = sum of:
       2.7313516 = weight(author_txt:shiri in 3658) [ClassicSimilarity], result of:
         2.7313516 = score(doc=3658,freq=1.0), product of:
           0.634429 = queryWeight, product of:
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.073681496 = queryNorm
           4.3052125 = fieldWeight in 3658, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.5 = fieldNorm(doc=3658)
       3.6733 = weight(author_txt:revie in 3658) [ClassicSimilarity], result of:
         3.6733 = score(doc=3658,freq=1.0), product of:
           0.7729811 = queryWeight, product of:
             1.1038065 = boost
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.073681496 = queryNorm
           4.7521214 = fieldWeight in 3658, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.5 = fieldNorm(doc=3658)
   

2. Shiri, A.; Revie, C.: Usability and user perceptions of a thesaurus-enhanced search interface (2005) 6.40

   6.4046516 = sum of:
     6.4046516 = sum of:
       2.7313516 = weight(author_txt:shiri in 5331) [ClassicSimilarity], result of:
         2.7313516 = score(doc=5331,freq=1.0), product of:
           0.634429 = queryWeight, product of:
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.073681496 = queryNorm
           4.3052125 = fieldWeight in 5331, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.5 = fieldNorm(doc=5331)
       3.6733 = weight(author_txt:revie in 5331) [ClassicSimilarity], result of:
         3.6733 = score(doc=5331,freq=1.0), product of:
           0.7729811 = queryWeight, product of:
             1.1038065 = boost
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.073681496 = queryNorm
           4.7521214 = fieldWeight in 5331, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.5 = fieldNorm(doc=5331)
   

3. Shiri, A.A.; Revie, C.: ¬The effects of topic complexity and familiarity on cognitive and physical moves in a thesaurus-enhanced search environment (2003) 6.40

   6.4046516 = sum of:
     6.4046516 = sum of:
       2.7313516 = weight(author_txt:shiri in 5695) [ClassicSimilarity], result of:
         2.7313516 = score(doc=5695,freq=1.0), product of:
           0.634429 = queryWeight, product of:
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.073681496 = queryNorm
           4.3052125 = fieldWeight in 5695, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.5 = fieldNorm(doc=5695)
       3.6733 = weight(author_txt:revie in 5695) [ClassicSimilarity], result of:
         3.6733 = score(doc=5695,freq=1.0), product of:
           0.7729811 = queryWeight, product of:
             1.1038065 = boost
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.073681496 = queryNorm
           4.7521214 = fieldWeight in 5695, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.5 = fieldNorm(doc=5695)
   

4. Shiri, A.A.; Revie, C.: Thesauri on the Web : current developments and trends (2000) 6.40

   6.4046516 = sum of:
     6.4046516 = sum of:
       2.7313516 = weight(author_txt:shiri in 3558) [ClassicSimilarity], result of:
         2.7313516 = score(doc=3558,freq=1.0), product of:
           0.634429 = queryWeight, product of:
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.073681496 = queryNorm
           4.3052125 = fieldWeight in 3558, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.5 = fieldNorm(doc=3558)
       3.6733 = weight(author_txt:revie in 3558) [ClassicSimilarity], result of:
         3.6733 = score(doc=3558,freq=1.0), product of:
           0.7729811 = queryWeight, product of:
             1.1038065 = boost
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.073681496 = queryNorm
           4.7521214 = fieldWeight in 3558, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.5 = fieldNorm(doc=3558)
   

5. Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-assisted search term selection and query expansion : a review of user-centred studies (2002) 4.80

   4.8034887 = sum of:
     4.8034887 = sum of:
       2.0485137 = weight(author_txt:shiri in 2330) [ClassicSimilarity], result of:
         2.0485137 = score(doc=2330,freq=1.0), product of:
           0.634429 = queryWeight, product of:
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.073681496 = queryNorm
           3.2289095 = fieldWeight in 2330, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.375 = fieldNorm(doc=2330)
       2.754975 = weight(author_txt:revie in 2330) [ClassicSimilarity], result of:
         2.754975 = score(doc=2330,freq=1.0), product of:
           0.7729811 = queryWeight, product of:
             1.1038065 = boost
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.073681496 = queryNorm
           3.5640912 = fieldWeight in 2330, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.504243 = idf(docFreq=8, maxDocs=44421)
             0.375 = fieldNorm(doc=2330)
   

Similar documents (content)

1. Shiri, A.; Revie, C.: Usability and user perceptions of a thesaurus-enhanced search interface (2005) 0.79

   0.79044205 = sum of:
     0.79044205 = product of:
       1.4115037 = sum of:
         0.028737344 = weight(abstract_txt:term in 5331) [ClassicSimilarity], result of:
           0.028737344 = score(doc=5331,freq=1.0), product of:
             0.09589677 = queryWeight, product of:
               1.1852627 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.01687434 = queryNorm
             0.29966956 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.03727734 = weight(abstract_txt:searches in 5331) [ClassicSimilarity], result of:
           0.03727734 = score(doc=5331,freq=1.0), product of:
             0.114060745 = queryWeight, product of:
               1.2926493 = boost
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.01687434 = queryNorm
             0.32682008 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.04049219 = weight(abstract_txt:selection in 5331) [ClassicSimilarity], result of:
           0.04049219 = score(doc=5331,freq=1.0), product of:
             0.12052776 = queryWeight, product of:
               1.3287894 = boost
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.01687434 = queryNorm
             0.33595738 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.043591518 = weight(abstract_txt:here in 5331) [ClassicSimilarity], result of:
           0.043591518 = score(doc=5331,freq=1.0), product of:
             0.1266021 = queryWeight, product of:
               1.3618618 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.01687434 = queryNorm
             0.34431908 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.10536021 = weight(abstract_txt:enhanced in 5331) [ClassicSimilarity], result of:
           0.10536021 = score(doc=5331,freq=3.0), product of:
             0.15809456 = queryWeight, product of:
               1.5218472 = boost
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.01687434 = queryNorm
             0.6664379 = fieldWeight in 5331, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.05638097 = weight(abstract_txt:academic in 5331) [ClassicSimilarity], result of:
           0.05638097 = score(doc=5331,freq=2.0), product of:
             0.13654685 = queryWeight, product of:
               1.7322042 = boost
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.01687434 = queryNorm
             0.41290566 = fieldWeight in 5331, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.036375474 = weight(abstract_txt:were in 5331) [ClassicSimilarity], result of:
           0.036375474 = score(doc=5331,freq=2.0), product of:
             0.11221357 = queryWeight, product of:
               1.8132191 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.01687434 = queryNorm
             0.3241629 = fieldWeight in 5331, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.09165681 = weight(abstract_txt:staff in 5331) [ClassicSimilarity], result of:
           0.09165681 = score(doc=5331,freq=2.0), product of:
             0.18878601 = queryWeight, product of:
               2.0367754 = boost
               5.4928775 = idf(docFreq=496, maxDocs=44421)
               0.01687434 = queryNorm
             0.48550636 = fieldWeight in 5331, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4928775 = idf(docFreq=496, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.06616074 = weight(abstract_txt:users in 5331) [ClassicSimilarity], result of:
           0.06616074 = score(doc=5331,freq=5.0), product of:
             0.1327078 = queryWeight, product of:
               2.2046053 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01687434 = queryNorm
             0.49854442 = fieldWeight in 5331, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.06281114 = weight(abstract_txt:students in 5331) [ClassicSimilarity], result of:
           0.06281114 = score(doc=5331,freq=1.0), product of:
             0.20348889 = queryWeight, product of:
               2.4417317 = boost
               4.938738 = idf(docFreq=864, maxDocs=44421)
               0.01687434 = queryNorm
             0.30867112 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.938738 = idf(docFreq=864, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.073136754 = weight(abstract_txt:terms in 5331) [ClassicSimilarity], result of:
           0.073136754 = score(doc=5331,freq=2.0), product of:
             0.20462583 = queryWeight, product of:
               2.998841 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.01687434 = queryNorm
             0.35741702 = fieldWeight in 5331, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.14084637 = weight(abstract_txt:search in 5331) [ClassicSimilarity], result of:
           0.14084637 = score(doc=5331,freq=10.0), product of:
             0.19499615 = queryWeight, product of:
               3.1619837 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.01687434 = queryNorm
             0.72230333 = fieldWeight in 5331, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.3058055 = weight(abstract_txt:thesaurus in 5331) [ClassicSimilarity], result of:
           0.3058055 = score(doc=5331,freq=8.0), product of:
             0.33456478 = queryWeight, product of:
               3.8345406 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.01687434 = queryNorm
             0.9140398 = fieldWeight in 5331, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.32287133 = weight(abstract_txt:postgraduate in 5331) [ClassicSimilarity], result of:
           0.32287133 = score(doc=5331,freq=1.0), product of:
             0.6060883 = queryWeight, product of:
               4.21401 = boost
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.01687434 = queryNorm
             0.53271335 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.523414 = idf(docFreq=23, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
       0.56 = coord(14/25)
   

2. Shiri, A.: Topic familiarity and its effects on term selection and browsing in a thesaurus-enhanced search environment (2005) 0.36

   0.3641061 = sum of:
     0.3641061 = product of:
       0.8275139 = sum of:
         0.028737344 = weight(abstract_txt:term in 738) [ClassicSimilarity], result of:
           0.028737344 = score(doc=738,freq=1.0), product of:
             0.09589677 = queryWeight, product of:
               1.1852627 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.01687434 = queryNorm
             0.29966956 = fieldWeight in 738, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.05271812 = weight(abstract_txt:searches in 738) [ClassicSimilarity], result of:
           0.05271812 = score(doc=738,freq=2.0), product of:
             0.114060745 = queryWeight, product of:
               1.2926493 = boost
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.01687434 = queryNorm
             0.46219337 = fieldWeight in 738, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.05319064 = weight(abstract_txt:interaction in 738) [ClassicSimilarity], result of:
           0.05319064 = score(doc=738,freq=2.0), product of:
             0.114741296 = queryWeight, product of:
               1.2964998 = boost
               5.244698 = idf(docFreq=636, maxDocs=44421)
               0.01687434 = queryNorm
             0.46357018 = fieldWeight in 738, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.244698 = idf(docFreq=636, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.04049219 = weight(abstract_txt:selection in 738) [ClassicSimilarity], result of:
           0.04049219 = score(doc=738,freq=1.0), product of:
             0.12052776 = queryWeight, product of:
               1.3287894 = boost
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.01687434 = queryNorm
             0.33595738 = fieldWeight in 738, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.086026244 = weight(abstract_txt:enhanced in 738) [ClassicSimilarity], result of:
           0.086026244 = score(doc=738,freq=2.0), product of:
             0.15809456 = queryWeight, product of:
               1.5218472 = boost
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.01687434 = queryNorm
             0.5441443 = fieldWeight in 738, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.025721347 = weight(abstract_txt:were in 738) [ClassicSimilarity], result of:
           0.025721347 = score(doc=738,freq=1.0), product of:
             0.11221357 = queryWeight, product of:
               1.8132191 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.01687434 = queryNorm
             0.2292178 = fieldWeight in 738, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.087429784 = weight(abstract_txt:topic in 738) [ClassicSimilarity], result of:
           0.087429784 = score(doc=738,freq=3.0), product of:
             0.15980947 = queryWeight, product of:
               1.8739564 = boost
               5.053779 = idf(docFreq=770, maxDocs=44421)
               0.01687434 = queryNorm
             0.5470876 = fieldWeight in 738, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.053779 = idf(docFreq=770, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.05917596 = weight(abstract_txt:users in 738) [ClassicSimilarity], result of:
           0.05917596 = score(doc=738,freq=4.0), product of:
             0.1327078 = queryWeight, product of:
               2.2046053 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01687434 = queryNorm
             0.44591168 = fieldWeight in 738, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.073136754 = weight(abstract_txt:terms in 738) [ClassicSimilarity], result of:
           0.073136754 = score(doc=738,freq=2.0), product of:
             0.20462583 = queryWeight, product of:
               2.998841 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.01687434 = queryNorm
             0.35741702 = fieldWeight in 738, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.1336186 = weight(abstract_txt:search in 738) [ClassicSimilarity], result of:
           0.1336186 = score(doc=738,freq=9.0), product of:
             0.19499615 = queryWeight, product of:
               3.1619837 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.01687434 = queryNorm
             0.6852371 = fieldWeight in 738, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
         0.18726687 = weight(abstract_txt:thesaurus in 738) [ClassicSimilarity], result of:
           0.18726687 = score(doc=738,freq=3.0), product of:
             0.33456478 = queryWeight, product of:
               3.8345406 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.01687434 = queryNorm
             0.5597328 = fieldWeight in 738, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.0625 = fieldNorm(doc=738)
       0.44 = coord(11/25)
   

3. Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.35

   0.35416928 = sum of:
     0.35416928 = product of:
       0.8854232 = sum of:
         0.020506606 = weight(abstract_txt:evaluation in 6701) [ClassicSimilarity], result of:
           0.020506606 = score(doc=6701,freq=1.0), product of:
             0.08370731 = queryWeight, product of:
               1.107374 = boost
               4.479632 = idf(docFreq=1368, maxDocs=44421)
               0.01687434 = queryNorm
             0.24497987 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.479632 = idf(docFreq=1368, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.050290354 = weight(abstract_txt:term in 6701) [ClassicSimilarity], result of:
           0.050290354 = score(doc=6701,freq=4.0), product of:
             0.09589677 = queryWeight, product of:
               1.1852627 = boost
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.01687434 = queryNorm
             0.52442175 = fieldWeight in 6701, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.794713 = idf(docFreq=998, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.032617673 = weight(abstract_txt:searches in 6701) [ClassicSimilarity], result of:
           0.032617673 = score(doc=6701,freq=1.0), product of:
             0.114060745 = queryWeight, product of:
               1.2926493 = boost
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.01687434 = queryNorm
             0.28596756 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.229121 = idf(docFreq=646, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.035430666 = weight(abstract_txt:selection in 6701) [ClassicSimilarity], result of:
           0.035430666 = score(doc=6701,freq=1.0), product of:
             0.12052776 = queryWeight, product of:
               1.3287894 = boost
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.01687434 = queryNorm
             0.29396272 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.1516334 = weight(abstract_txt:query in 6701) [ClassicSimilarity], result of:
           0.1516334 = score(doc=6701,freq=17.0), product of:
             0.14144196 = queryWeight, product of:
               1.7629799 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.01687434 = queryNorm
             1.0720539 = fieldWeight in 6701, product of:
               4.1231055 = tf(freq=17.0), with freq of:
                 17.0 = termFreq=17.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.05032535 = weight(abstract_txt:were in 6701) [ClassicSimilarity], result of:
           0.05032535 = score(doc=6701,freq=5.0), product of:
             0.11221357 = queryWeight, product of:
               1.8132191 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.01687434 = queryNorm
             0.44847828 = fieldWeight in 6701, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.051778965 = weight(abstract_txt:users in 6701) [ClassicSimilarity], result of:
           0.051778965 = score(doc=6701,freq=4.0), product of:
             0.1327078 = queryWeight, product of:
               2.2046053 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01687434 = queryNorm
             0.39017272 = fieldWeight in 6701, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.28097102 = weight(abstract_txt:expansion in 6701) [ClassicSimilarity], result of:
           0.28097102 = score(doc=6701,freq=13.0), product of:
             0.23334107 = queryWeight, product of:
               2.2644036 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.01687434 = queryNorm
             1.2041216 = fieldWeight in 6701, product of:
               3.6055512 = tf(freq=13.0), with freq of:
                 13.0 = termFreq=13.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.15675427 = weight(abstract_txt:terms in 6701) [ClassicSimilarity], result of:
           0.15675427 = score(doc=6701,freq=12.0), product of:
             0.20462583 = queryWeight, product of:
               2.998841 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.01687434 = queryNorm
             0.7660532 = fieldWeight in 6701, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.055114865 = weight(abstract_txt:search in 6701) [ClassicSimilarity], result of:
           0.055114865 = score(doc=6701,freq=2.0), product of:
             0.19499615 = queryWeight, product of:
               3.1619837 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.01687434 = queryNorm
             0.2826459 = fieldWeight in 6701, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
       0.4 = coord(10/25)
   

4. Shiri, A.A.; Revie, C.: End-user interaction with thesauri : an evaluation of cognitive overlap in search term selection (2004) 0.35

   0.3502372 = sum of:
     0.3502372 = product of:
       0.9728811 = sum of:
         0.0664883 = weight(abstract_txt:interaction in 3658) [ClassicSimilarity], result of:
           0.0664883 = score(doc=3658,freq=2.0), product of:
             0.114741296 = queryWeight, product of:
               1.2964998 = boost
               5.244698 = idf(docFreq=636, maxDocs=44421)
               0.01687434 = queryNorm
             0.5794627 = fieldWeight in 3658, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.244698 = idf(docFreq=636, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.10753281 = weight(abstract_txt:enhanced in 3658) [ClassicSimilarity], result of:
           0.10753281 = score(doc=3658,freq=2.0), product of:
             0.15809456 = queryWeight, product of:
               1.5218472 = boost
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.01687434 = queryNorm
             0.6801803 = fieldWeight in 3658, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.049834207 = weight(abstract_txt:academic in 3658) [ClassicSimilarity], result of:
           0.049834207 = score(doc=3658,freq=1.0), product of:
             0.13654685 = queryWeight, product of:
               1.7322042 = boost
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.01687434 = queryNorm
             0.3649605 = fieldWeight in 3658, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6714945 = idf(docFreq=1129, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.052537862 = weight(abstract_txt:query in 3658) [ClassicSimilarity], result of:
           0.052537862 = score(doc=3658,freq=1.0), product of:
             0.14144196 = queryWeight, product of:
               1.7629799 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.01687434 = queryNorm
             0.37144467 = fieldWeight in 3658, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.055688348 = weight(abstract_txt:were in 3658) [ClassicSimilarity], result of:
           0.055688348 = score(doc=3658,freq=3.0), product of:
             0.11221357 = queryWeight, product of:
               1.8132191 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.01687434 = queryNorm
             0.49627107 = fieldWeight in 3658, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.082700916 = weight(abstract_txt:users in 3658) [ClassicSimilarity], result of:
           0.082700916 = score(doc=3658,freq=5.0), product of:
             0.1327078 = queryWeight, product of:
               2.2046053 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01687434 = queryNorm
             0.6231805 = fieldWeight in 3658, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.1445492 = weight(abstract_txt:terms in 3658) [ClassicSimilarity], result of:
           0.1445492 = score(doc=3658,freq=5.0), product of:
             0.20462583 = queryWeight, product of:
               2.998841 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.01687434 = queryNorm
             0.7064074 = fieldWeight in 3658, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.11134883 = weight(abstract_txt:search in 3658) [ClassicSimilarity], result of:
           0.11134883 = score(doc=3658,freq=4.0), product of:
             0.19499615 = queryWeight, product of:
               3.1619837 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.01687434 = queryNorm
             0.5710309 = fieldWeight in 3658, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
         0.30220062 = weight(abstract_txt:thesaurus in 3658) [ClassicSimilarity], result of:
           0.30220062 = score(doc=3658,freq=5.0), product of:
             0.33456478 = queryWeight, product of:
               3.8345406 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.01687434 = queryNorm
             0.9032649 = fieldWeight in 3658, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.078125 = fieldNorm(doc=3658)
       0.36 = coord(9/25)
   

5. Shiri, A.A.; Revie, C.; Chowdhurry, G.: Assessing the impact of user interaction with thesaural knowledge structures : a quantitative analysis framework (2003) 0.32

   0.31695932 = sum of:
     0.31695932 = product of:
       0.7203621 = sum of:
         0.0282086 = weight(abstract_txt:interaction in 3766) [ClassicSimilarity], result of:
           0.0282086 = score(doc=3766,freq=1.0), product of:
             0.114741296 = queryWeight, product of:
               1.2964998 = boost
               5.244698 = idf(docFreq=636, maxDocs=44421)
               0.01687434 = queryNorm
             0.24584523 = fieldWeight in 3766, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.244698 = idf(docFreq=636, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.030369142 = weight(abstract_txt:selection in 3766) [ClassicSimilarity], result of:
           0.030369142 = score(doc=3766,freq=1.0), product of:
             0.12052776 = queryWeight, product of:
               1.3287894 = boost
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.01687434 = queryNorm
             0.25196803 = fieldWeight in 3766, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.375318 = idf(docFreq=558, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.032693636 = weight(abstract_txt:here in 3766) [ClassicSimilarity], result of:
           0.032693636 = score(doc=3766,freq=1.0), product of:
             0.1266021 = queryWeight, product of:
               1.3618618 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.01687434 = queryNorm
             0.2582393 = fieldWeight in 3766, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.07902016 = weight(abstract_txt:enhanced in 3766) [ClassicSimilarity], result of:
           0.07902016 = score(doc=3766,freq=3.0), product of:
             0.15809456 = queryWeight, product of:
               1.5218472 = boost
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.01687434 = queryNorm
             0.49982846 = fieldWeight in 3766, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.05459895 = weight(abstract_txt:query in 3766) [ClassicSimilarity], result of:
           0.05459895 = score(doc=3766,freq=3.0), product of:
             0.14144196 = queryWeight, product of:
               1.7629799 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.01687434 = queryNorm
             0.38601664 = fieldWeight in 3766, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.019291012 = weight(abstract_txt:were in 3766) [ClassicSimilarity], result of:
           0.019291012 = score(doc=3766,freq=1.0), product of:
             0.11221357 = queryWeight, product of:
               1.8132191 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.01687434 = queryNorm
             0.17191336 = fieldWeight in 3766, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.04962055 = weight(abstract_txt:users in 3766) [ClassicSimilarity], result of:
           0.04962055 = score(doc=3766,freq=5.0), product of:
             0.1327078 = queryWeight, product of:
               2.2046053 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.01687434 = queryNorm
             0.3739083 = fieldWeight in 3766, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.11569209 = weight(abstract_txt:expansion in 3766) [ClassicSimilarity], result of:
           0.11569209 = score(doc=3766,freq=3.0), product of:
             0.23334107 = queryWeight, product of:
               2.2644036 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.01687434 = queryNorm
             0.49580678 = fieldWeight in 3766, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.054852568 = weight(abstract_txt:terms in 3766) [ClassicSimilarity], result of:
           0.054852568 = score(doc=3766,freq=2.0), product of:
             0.20462583 = queryWeight, product of:
               2.998841 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.01687434 = queryNorm
             0.26806277 = fieldWeight in 3766, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.074695066 = weight(abstract_txt:search in 3766) [ClassicSimilarity], result of:
           0.074695066 = score(doc=3766,freq=5.0), product of:
             0.19499615 = queryWeight, product of:
               3.1619837 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.01687434 = queryNorm
             0.3830592 = fieldWeight in 3766, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
         0.18132037 = weight(abstract_txt:thesaurus in 3766) [ClassicSimilarity], result of:
           0.18132037 = score(doc=3766,freq=5.0), product of:
             0.33456478 = queryWeight, product of:
               3.8345406 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.01687434 = queryNorm
             0.5419589 = fieldWeight in 3766, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.046875 = fieldNorm(doc=3766)
       0.44 = coord(11/25)