Document (#27767)

Author

Shiri, A.A.
Revie, C.
Chowdhurry, G.

Title

Assessing the impact of user interaction with thesaural knowledge structures : a quantitative analysis framework

Source

Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas

Imprint

Würzburg : Ergon Verlag

Year

2003

Pages

S.493-499

Series

Advances in knowledge organization; vol.8

Abstract

Thesauri have been important information and knowledge organisation tools for more than three decades. The recent emergence and phenomenal growth of the World Wide Web has created new opportunities to introduce thesauri as information search and retrieval aids to end user communities. While the number of web-based and hypertextual thesauri continues to grow, few investigations have yet been carried out to evaluate how end-users, for whom all these efforts are ostensibly made, interact with and make use of thesauri for query building and expansion. The present paper reports a pilot study carried out to determine the extent to which a thesaurus-enhanced search interface to a web-based database aided end-users in their selection of search terms. The study also investigated the ways in which users interacted with the thesaurus structure, terms, and interface. Thesaurusbased searching and browsing behaviours adopted by users while interacting with the thesaurus-enhanced search interface were also examined. 1. Introduction The last decade has witnessed the emergence of a broad range of applications for knowledge structures in general and thesauri in particular. A number of researchers have predicted that thesauri will increasingly be used in retrieval rather than for indexing (Milstead, 1998; Aitchison et al., 1997) and that their application in information retrieval systems will become more diverse due to the growth of fulltext databases accessed over the Internet (Williamson, 2000). Some researchers have emphasised the need for tailoring the structure and content of thesauri as tools for end-user searching (Bates, 1986; Strong and Drott, 1986; Anderson and Rowley, 1991; Lopez-Huertas, 1997) while others have suggested thesaurus-enhanced user interfaces to support query formulation and expansion (Pollitt et.al., 1994; Jones et.al., 1995; Beaulieu, 1997). The recent phenomenal growth of the World Wide Web has created new opportunities to introduce thesauri as information search and retrieval aids to end user communities. While the number of web-based and hypertextual thesauri continues to grow, few investigations have been carried out to evaluate the ways in which end-users interact with and make use of online thesauri for query building and expansion. The work reported here expands an a pilot study (Shiri and Revie, 2001) carried out to investigate user - thesaurus interaction in the domains of biology and veterinary medicine.

Theme

Konzeption und Anwendung des Prinzips Thesaurus
Benutzerstudien

Field

Biologie
Veterinärmedizin

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.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006) 6.40

   6.4046516 = sum of:
     6.4046516 = sum of:
       2.7313516 = weight(author_txt:shiri in 1056) [ClassicSimilarity], result of:
         2.7313516 = score(doc=1056,freq=1.0), product of:
           0.634429 = queryWeight, product of:
             8.610425 = idf(docFreq=21, maxDocs=44421)
             0.073681496 = queryNorm
           4.3052125 = fieldWeight in 1056, 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=1056)
       3.6733 = weight(author_txt:revie in 1056) [ClassicSimilarity], result of:
         3.6733 = score(doc=1056,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 1056, 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=1056)
   

5. 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)
   

Similar documents (content)

1. Greenberg, J.: User comprehension and application of information retrieval thesauri (2004) 0.36

   0.35512838 = sum of:
     0.35512838 = product of:
       0.98646766 = sum of:
         0.032262824 = weight(abstract_txt:retrieval in 8) [ClassicSimilarity], result of:
           0.032262824 = score(doc=8,freq=2.0), product of:
             0.08399533 = queryWeight, product of:
               1.0884025 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022198485 = queryNorm
             0.3841026 = fieldWeight in 8, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
         0.043765735 = weight(abstract_txt:query in 8) [ClassicSimilarity], result of:
           0.043765735 = score(doc=8,freq=1.0), product of:
             0.11782572 = queryWeight, product of:
               1.1163815 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022198485 = queryNorm
             0.37144467 = fieldWeight in 8, 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=8)
         0.047107033 = weight(abstract_txt:while in 8) [ClassicSimilarity], result of:
           0.047107033 = score(doc=8,freq=1.0), product of:
             0.13620321 = queryWeight, product of:
               1.3859758 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.022198485 = queryNorm
             0.34585845 = fieldWeight in 8, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
         0.06889253 = weight(abstract_txt:users in 8) [ClassicSimilarity], result of:
           0.06889253 = score(doc=8,freq=5.0), product of:
             0.11054988 = queryWeight, product of:
               1.3960345 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.022198485 = queryNorm
             0.6231805 = fieldWeight in 8, 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=8)
         0.03312756 = weight(abstract_txt:search in 8) [ClassicSimilarity], result of:
           0.03312756 = score(doc=8,freq=1.0), product of:
             0.11602721 = queryWeight, product of:
               1.4302005 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022198485 = queryNorm
             0.28551546 = fieldWeight in 8, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
         0.09273713 = weight(abstract_txt:expansion in 8) [ClassicSimilarity], result of:
           0.09273713 = score(doc=8,freq=1.0), product of:
             0.19438066 = queryWeight, product of:
               1.433901 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.022198485 = queryNorm
             0.47709033 = fieldWeight in 8, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
         0.04061653 = weight(abstract_txt:user in 8) [ClassicSimilarity], result of:
           0.04061653 = score(doc=8,freq=1.0), product of:
             0.14124155 = queryWeight, product of:
               1.7285775 = boost
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.022198485 = queryNorm
             0.28756785 = fieldWeight in 8, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
         0.09381903 = weight(abstract_txt:thesaurus in 8) [ClassicSimilarity], result of:
           0.09381903 = score(doc=8,freq=1.0), product of:
             0.23225272 = queryWeight, product of:
               2.0234728 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.022198485 = queryNorm
             0.40395233 = fieldWeight in 8, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
         0.5341393 = weight(abstract_txt:thesauri in 8) [ClassicSimilarity], result of:
           0.5341393 = score(doc=8,freq=6.0), product of:
             0.5134476 = queryWeight, product of:
               4.254809 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.022198485 = queryNorm
             1.0402995 = fieldWeight in 8, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.078125 = fieldNorm(doc=8)
       0.36 = coord(9/25)
   

2. Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-assisted search term selection and query expansion : a review of user-centred studies (2002) 0.34

   0.34228298 = sum of:
     0.34228298 = product of:
       0.95078605 = sum of:
         0.022813262 = weight(abstract_txt:retrieval in 2330) [ClassicSimilarity], result of:
           0.022813262 = score(doc=2330,freq=1.0), product of:
             0.08399533 = queryWeight, product of:
               1.0884025 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022198485 = queryNorm
             0.27160156 = fieldWeight in 2330, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.06189409 = weight(abstract_txt:query in 2330) [ClassicSimilarity], result of:
           0.06189409 = score(doc=2330,freq=2.0), product of:
             0.11782572 = queryWeight, product of:
               1.1163815 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022198485 = queryNorm
             0.52530205 = fieldWeight in 2330, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.04357146 = weight(abstract_txt:users in 2330) [ClassicSimilarity], result of:
           0.04357146 = score(doc=2330,freq=2.0), product of:
             0.11054988 = queryWeight, product of:
               1.3960345 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.022198485 = queryNorm
             0.39413396 = fieldWeight in 2330, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.06625512 = weight(abstract_txt:search in 2330) [ClassicSimilarity], result of:
           0.06625512 = score(doc=2330,freq=4.0), product of:
             0.11602721 = queryWeight, product of:
               1.4302005 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022198485 = queryNorm
             0.5710309 = fieldWeight in 2330, 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=2330)
         0.13115011 = weight(abstract_txt:expansion in 2330) [ClassicSimilarity], result of:
           0.13115011 = score(doc=2330,freq=2.0), product of:
             0.19438066 = queryWeight, product of:
               1.433901 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.022198485 = queryNorm
             0.6747076 = fieldWeight in 2330, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.03771965 = weight(abstract_txt:have in 2330) [ClassicSimilarity], result of:
           0.03771965 = score(doc=2330,freq=2.0), product of:
             0.106707685 = queryWeight, product of:
               1.5024687 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.022198485 = queryNorm
             0.35348576 = fieldWeight in 2330, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.057440445 = weight(abstract_txt:user in 2330) [ClassicSimilarity], result of:
           0.057440445 = score(doc=2330,freq=2.0), product of:
             0.14124155 = queryWeight, product of:
               1.7285775 = boost
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.022198485 = queryNorm
             0.40668234 = fieldWeight in 2330, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.6808684 = idf(docFreq=3042, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.09381903 = weight(abstract_txt:thesaurus in 2330) [ClassicSimilarity], result of:
           0.09381903 = score(doc=2330,freq=1.0), product of:
             0.23225272 = queryWeight, product of:
               2.0234728 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.022198485 = queryNorm
             0.40395233 = fieldWeight in 2330, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
         0.4361229 = weight(abstract_txt:thesauri in 2330) [ClassicSimilarity], result of:
           0.4361229 = score(doc=2330,freq=4.0), product of:
             0.5134476 = queryWeight, product of:
               4.254809 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.022198485 = queryNorm
             0.849401 = fieldWeight in 2330, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.078125 = fieldNorm(doc=2330)
       0.36 = coord(9/25)
   

3. Shiri, A.; Revie, C.: Usability and user perceptions of a thesaurus-enhanced search interface (2005) 0.30

   0.2994246 = sum of:
     0.2994246 = product of:
       0.93570185 = sum of:
         0.06130462 = weight(abstract_txt:interact in 5331) [ClassicSimilarity], result of:
           0.06130462 = score(doc=5331,freq=1.0), product of:
             0.14952794 = queryWeight, product of:
               1.0268527 = boost
               6.559804 = idf(docFreq=170, maxDocs=44421)
               0.022198485 = queryNorm
             0.40998775 = fieldWeight in 5331, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.559804 = idf(docFreq=170, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.09153146 = weight(abstract_txt:interface in 5331) [ClassicSimilarity], result of:
           0.09153146 = score(doc=5331,freq=6.0), product of:
             0.12305156 = queryWeight, product of:
               1.1408701 = boost
               4.858784 = idf(docFreq=936, maxDocs=44421)
               0.022198485 = queryNorm
             0.7438464 = fieldWeight in 5331, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.858784 = idf(docFreq=936, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.053295523 = weight(abstract_txt:while in 5331) [ClassicSimilarity], result of:
           0.053295523 = score(doc=5331,freq=2.0), product of:
             0.13620321 = queryWeight, product of:
               1.3859758 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.022198485 = queryNorm
             0.39129415 = fieldWeight in 5331, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
         0.055114027 = weight(abstract_txt:users in 5331) [ClassicSimilarity], result of:
           0.055114027 = score(doc=5331,freq=5.0), product of:
             0.11054988 = queryWeight, product of:
               1.3960345 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.022198485 = 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)
         0.08380684 = weight(abstract_txt:search in 5331) [ClassicSimilarity], result of:
           0.08380684 = score(doc=5331,freq=10.0), product of:
             0.11602721 = queryWeight, product of:
               1.4302005 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022198485 = 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)
         0.1316527 = weight(abstract_txt:enhanced in 5331) [ClassicSimilarity], result of:
           0.1316527 = score(doc=5331,freq=3.0), product of:
             0.19754682 = queryWeight, product of:
               1.4455317 = boost
               6.15629 = idf(docFreq=255, maxDocs=44421)
               0.022198485 = 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)
         0.21228823 = weight(abstract_txt:thesaurus in 5331) [ClassicSimilarity], result of:
           0.21228823 = score(doc=5331,freq=8.0), product of:
             0.23225272 = queryWeight, product of:
               2.0234728 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.022198485 = 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)
         0.24670836 = weight(abstract_txt:thesauri in 5331) [ClassicSimilarity], result of:
           0.24670836 = score(doc=5331,freq=2.0), product of:
             0.5134476 = queryWeight, product of:
               4.254809 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.022198485 = queryNorm
             0.48049375 = fieldWeight in 5331, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.0625 = fieldNorm(doc=5331)
       0.32 = coord(8/25)
   

4. Tudhope, D.; Alani, H.; Jones, C.: Augmenting thesaurus relationships : possibilities for retrieval (2001) 0.23

   0.22533771 = sum of:
     0.22533771 = product of:
       0.70418036 = sum of:
         0.06862399 = weight(abstract_txt:aids in 2520) [ClassicSimilarity], result of:
           0.06862399 = score(doc=2520,freq=1.0), product of:
             0.16120464 = queryWeight, product of:
               1.0661927 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.022198485 = queryNorm
             0.4256949 = fieldWeight in 2520, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
         0.03161098 = weight(abstract_txt:retrieval in 2520) [ClassicSimilarity], result of:
           0.03161098 = score(doc=2520,freq=3.0), product of:
             0.08399533 = queryWeight, product of:
               1.0884025 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022198485 = queryNorm
             0.37634215 = fieldWeight in 2520, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
         0.035012588 = weight(abstract_txt:query in 2520) [ClassicSimilarity], result of:
           0.035012588 = score(doc=2520,freq=1.0), product of:
             0.11782572 = queryWeight, product of:
               1.1163815 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022198485 = queryNorm
             0.29715574 = fieldWeight in 2520, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
         0.037685625 = weight(abstract_txt:while in 2520) [ClassicSimilarity], result of:
           0.037685625 = score(doc=2520,freq=1.0), product of:
             0.13620321 = queryWeight, product of:
               1.3859758 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.022198485 = queryNorm
             0.27668676 = fieldWeight in 2520, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
         0.026502052 = weight(abstract_txt:search in 2520) [ClassicSimilarity], result of:
           0.026502052 = score(doc=2520,freq=1.0), product of:
             0.11602721 = queryWeight, product of:
               1.4302005 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.022198485 = queryNorm
             0.22841237 = fieldWeight in 2520, 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=2520)
         0.07418971 = weight(abstract_txt:expansion in 2520) [ClassicSimilarity], result of:
           0.07418971 = score(doc=2520,freq=1.0), product of:
             0.19438066 = queryWeight, product of:
               1.433901 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.022198485 = queryNorm
             0.38167226 = fieldWeight in 2520, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
         0.183847 = weight(abstract_txt:thesaurus in 2520) [ClassicSimilarity], result of:
           0.183847 = score(doc=2520,freq=6.0), product of:
             0.23225272 = queryWeight, product of:
               2.0234728 = boost
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.022198485 = queryNorm
             0.7915817 = fieldWeight in 2520, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.17059 = idf(docFreq=685, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
         0.24670836 = weight(abstract_txt:thesauri in 2520) [ClassicSimilarity], result of:
           0.24670836 = score(doc=2520,freq=2.0), product of:
             0.5134476 = queryWeight, product of:
               4.254809 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.022198485 = queryNorm
             0.48049375 = fieldWeight in 2520, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.0625 = fieldNorm(doc=2520)
       0.32 = coord(8/25)
   

5. Greenberg, J.: Optimal query expansion (QE) processing methods with semantically encoded structured thesaurus terminology (2001) 0.21

   0.20735054 = sum of:
     0.20735054 = product of:
       0.74053764 = sum of:
         0.03951373 = weight(abstract_txt:retrieval in 6750) [ClassicSimilarity], result of:
           0.03951373 = score(doc=6750,freq=3.0), product of:
             0.08399533 = queryWeight, product of:
               1.0884025 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.022198485 = queryNorm
             0.4704277 = fieldWeight in 6750, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.078125 = fieldNorm(doc=6750)
         0.043765735 = weight(abstract_txt:query in 6750) [ClassicSimilarity], result of:
           0.043765735 = score(doc=6750,freq=1.0), product of:
             0.11782572 = queryWeight, product of:
               1.1163815 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.022198485 = queryNorm
             0.37144467 = fieldWeight in 6750, 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=6750)
         0.047107033 = weight(abstract_txt:while in 6750) [ClassicSimilarity], result of:
           0.047107033 = score(doc=6750,freq=1.0), product of:
             0.13620321 = queryWeight, product of:
               1.3859758 = boost
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.022198485 = queryNorm
             0.34585845 = fieldWeight in 6750, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.426988 = idf(docFreq=1442, maxDocs=44421)
               0.078125 = fieldNorm(doc=6750)
         0.04357146 = weight(abstract_txt:users in 6750) [ClassicSimilarity], result of:
           0.04357146 = score(doc=6750,freq=2.0), product of:
             0.11054988 = queryWeight, product of:
               1.3960345 = boost
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.022198485 = queryNorm
             0.39413396 = fieldWeight in 6750, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.5672934 = idf(docFreq=3408, maxDocs=44421)
               0.078125 = fieldNorm(doc=6750)
         0.09273713 = weight(abstract_txt:expansion in 6750) [ClassicSimilarity], result of:
           0.09273713 = score(doc=6750,freq=1.0), product of:
             0.19438066 = queryWeight, product of:
               1.433901 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.022198485 = queryNorm
             0.47709033 = fieldWeight in 6750, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.078125 = fieldNorm(doc=6750)
         0.03771965 = weight(abstract_txt:have in 6750) [ClassicSimilarity], result of:
           0.03771965 = score(doc=6750,freq=2.0), product of:
             0.106707685 = queryWeight, product of:
               1.5024687 = boost
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.022198485 = queryNorm
             0.35348576 = fieldWeight in 6750, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.199388 = idf(docFreq=4924, maxDocs=44421)
               0.078125 = fieldNorm(doc=6750)
         0.4361229 = weight(abstract_txt:thesauri in 6750) [ClassicSimilarity], result of:
           0.4361229 = score(doc=6750,freq=4.0), product of:
             0.5134476 = queryWeight, product of:
               4.254809 = boost
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.022198485 = queryNorm
             0.849401 = fieldWeight in 6750, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.4361663 = idf(docFreq=525, maxDocs=44421)
               0.078125 = fieldNorm(doc=6750)
       0.28 = coord(7/25)