Document (#2351)

Author

Hancock-Beaulieu, M.

Title

Query expansion : advances in research in online catalogues

Source

Journal of information science. 18(1992), S.99-103

Year

1992

Abstract

Query expansion is the process of supplementing or replacing the original query terms with additional terms either at the search formulation or search reformulation stages. Different approaches to implementing query expansion are considered in three online catalogs

Theme

OPAC
Semantisches Umfeld in Indexierung u. Retrieval

Similar documents (author)

1. Hancock-Beaulieu, M.M.: User friendliness and human-computer interaction in online library catalogues (1992) 5.71

   5.705965 = sum of:
     5.705965 = sum of:
       2.7409704 = weight(author_txt:beaulieu in 1254) [ClassicSimilarity], result of:
         2.7409704 = score(doc=1254,freq=1.0), product of:
           0.6883576 = queryWeight, product of:
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.08643584 = queryNorm
           3.981899 = fieldWeight in 1254, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.5 = fieldNorm(doc=1254)
       2.964995 = weight(author_txt:hancock in 1254) [ClassicSimilarity], result of:
         2.964995 = score(doc=1254,freq=1.0), product of:
           0.72537154 = queryWeight, product of:
             1.0265337 = boost
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.08643584 = queryNorm
           4.0875535 = fieldWeight in 1254, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.5 = fieldNorm(doc=1254)
   

2. Hancock-Beaulieu, M.: Interactive query expansion in an OPAC : interface and retrieval issues (1995) 5.71

   5.705965 = sum of:
     5.705965 = sum of:
       2.7409704 = weight(author_txt:beaulieu in 5088) [ClassicSimilarity], result of:
         2.7409704 = score(doc=5088,freq=1.0), product of:
           0.6883576 = queryWeight, product of:
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.08643584 = queryNorm
           3.981899 = fieldWeight in 5088, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.5 = fieldNorm(doc=5088)
       2.964995 = weight(author_txt:hancock in 5088) [ClassicSimilarity], result of:
         2.964995 = score(doc=5088,freq=1.0), product of:
           0.72537154 = queryWeight, product of:
             1.0265337 = boost
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.08643584 = queryNorm
           4.0875535 = fieldWeight in 5088, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.5 = fieldNorm(doc=5088)
   

3. Hancock-Beaulieu, M.: ¬A comparative transaction log analysis of browsing and search formulation in online catalogues (1993) 5.71

   5.705965 = sum of:
     5.705965 = sum of:
       2.7409704 = weight(author_txt:beaulieu in 5257) [ClassicSimilarity], result of:
         2.7409704 = score(doc=5257,freq=1.0), product of:
           0.6883576 = queryWeight, product of:
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.08643584 = queryNorm
           3.981899 = fieldWeight in 5257, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.5 = fieldNorm(doc=5257)
       2.964995 = weight(author_txt:hancock in 5257) [ClassicSimilarity], result of:
         2.964995 = score(doc=5257,freq=1.0), product of:
           0.72537154 = queryWeight, product of:
             1.0265337 = boost
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.08643584 = queryNorm
           4.0875535 = fieldWeight in 5257, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.5 = fieldNorm(doc=5257)
   

4. Hancock-Beaulieu, M.: ¬Les catalogues en ligne juges par les utilisateurs (1991) 5.71

   5.705965 = sum of:
     5.705965 = sum of:
       2.7409704 = weight(author_txt:beaulieu in 6601) [ClassicSimilarity], result of:
         2.7409704 = score(doc=6601,freq=1.0), product of:
           0.6883576 = queryWeight, product of:
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.08643584 = queryNorm
           3.981899 = fieldWeight in 6601, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.5 = fieldNorm(doc=6601)
       2.964995 = weight(author_txt:hancock in 6601) [ClassicSimilarity], result of:
         2.964995 = score(doc=6601,freq=1.0), product of:
           0.72537154 = queryWeight, product of:
             1.0265337 = boost
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.08643584 = queryNorm
           4.0875535 = fieldWeight in 6601, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.5 = fieldNorm(doc=6601)
   

5. Hancock-Beaulieu, M.: OPACs (1993) 5.71

   5.705965 = sum of:
     5.705965 = sum of:
       2.7409704 = weight(author_txt:beaulieu in 6956) [ClassicSimilarity], result of:
         2.7409704 = score(doc=6956,freq=1.0), product of:
           0.6883576 = queryWeight, product of:
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.08643584 = queryNorm
           3.981899 = fieldWeight in 6956, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             7.963798 = idf(docFreq=41, maxDocs=44421)
             0.5 = fieldNorm(doc=6956)
       2.964995 = weight(author_txt:hancock in 6956) [ClassicSimilarity], result of:
         2.964995 = score(doc=6956,freq=1.0), product of:
           0.72537154 = queryWeight, product of:
             1.0265337 = boost
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.08643584 = queryNorm
           4.0875535 = fieldWeight in 6956, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.175107 = idf(docFreq=33, maxDocs=44421)
             0.5 = fieldNorm(doc=6956)
   

Similar documents (content)

1. Efthimiadis, E.N.: Query expansion (1996) 0.84

   0.8383939 = sum of:
     0.8383939 = product of:
       2.235717 = sum of:
         0.008495026 = weight(abstract_txt:with in 4915) [ClassicSimilarity], result of:
           0.008495026 = score(doc=4915,freq=1.0), product of:
             0.027226124 = queryWeight, product of:
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.010907291 = queryNorm
             0.31201747 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.017228477 = weight(abstract_txt:research in 4915) [ClassicSimilarity], result of:
           0.017228477 = score(doc=4915,freq=1.0), product of:
             0.04362217 = queryWeight, product of:
               1.2657872 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.010907291 = queryNorm
             0.39494774 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.0362557 = weight(abstract_txt:process in 4915) [ClassicSimilarity], result of:
           0.0362557 = score(doc=4915,freq=1.0), product of:
             0.07163526 = queryWeight, product of:
               1.6220734 = boost
               4.048922 = idf(docFreq=2105, maxDocs=44421)
               0.010907291 = queryNorm
             0.50611526 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.048922 = idf(docFreq=2105, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.08612847 = weight(abstract_txt:original in 4915) [ClassicSimilarity], result of:
           0.08612847 = score(doc=4915,freq=1.0), product of:
             0.12753826 = queryWeight, product of:
               2.1643493 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.010907291 = queryNorm
             0.6753148 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.09848272 = weight(abstract_txt:additional in 4915) [ClassicSimilarity], result of:
           0.09848272 = score(doc=4915,freq=1.0), product of:
             0.13945991 = queryWeight, product of:
               2.263246 = boost
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.010907291 = queryNorm
             0.7061723 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.07223185 = weight(abstract_txt:terms in 4915) [ClassicSimilarity], result of:
           0.07223185 = score(doc=4915,freq=1.0), product of:
             0.14290206 = queryWeight, product of:
               3.2399726 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.010907291 = queryNorm
             0.505464 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.42762667 = weight(abstract_txt:supplementing in 4915) [ClassicSimilarity], result of:
           0.42762667 = score(doc=4915,freq=1.0), product of:
             0.3711811 = queryWeight, product of:
               3.6923258 = boost
               9.216561 = idf(docFreq=11, maxDocs=44421)
               0.010907291 = queryNorm
             1.1520702 = fieldWeight in 4915, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.216561 = idf(docFreq=11, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.91408515 = weight(abstract_txt:expansion in 4915) [ClassicSimilarity], result of:
           0.91408515 = score(doc=4915,freq=6.0), product of:
             0.48886666 = queryWeight, product of:
               7.3394403 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.010907291 = queryNorm
             1.8698046 = fieldWeight in 4915, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
         0.5751829 = weight(abstract_txt:query in 4915) [ClassicSimilarity], result of:
           0.5751829 = score(doc=4915,freq=6.0), product of:
             0.39510837 = queryWeight, product of:
               7.6189513 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.010907291 = queryNorm
             1.4557599 = fieldWeight in 4915, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.125 = fieldNorm(doc=4915)
       0.375 = coord(9/24)
   

2. White, R.W.; Marchionini, G.: Examining the effectiveness of real-time query expansion (2007) 0.47

   0.4718672 = sum of:
     0.4718672 = product of:
       1.1324813 = sum of:
         0.0052560293 = weight(abstract_txt:with in 1913) [ClassicSimilarity], result of:
           0.0052560293 = score(doc=1913,freq=2.0), product of:
             0.027226124 = queryWeight, product of:
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.010907291 = queryNorm
             0.19305095 = fieldWeight in 1913, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.0075374586 = weight(abstract_txt:research in 1913) [ClassicSimilarity], result of:
           0.0075374586 = score(doc=1913,freq=1.0), product of:
             0.04362217 = queryWeight, product of:
               1.2657872 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.010907291 = queryNorm
             0.17278963 = fieldWeight in 1913, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.020398054 = weight(abstract_txt:three in 1913) [ClassicSimilarity], result of:
           0.020398054 = score(doc=1913,freq=1.0), product of:
             0.084712945 = queryWeight, product of:
               1.7639326 = boost
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.010907291 = queryNorm
             0.24079028 = fieldWeight in 1913, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.04308619 = weight(abstract_txt:additional in 1913) [ClassicSimilarity], result of:
           0.04308619 = score(doc=1913,freq=1.0), product of:
             0.13945991 = queryWeight, product of:
               2.263246 = boost
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.010907291 = queryNorm
             0.30895036 = fieldWeight in 1913, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6493783 = idf(docFreq=424, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.06554916 = weight(abstract_txt:implementing in 1913) [ClassicSimilarity], result of:
           0.06554916 = score(doc=1913,freq=1.0), product of:
             0.18447408 = queryWeight, product of:
               2.6030035 = boost
               6.497461 = idf(docFreq=181, maxDocs=44421)
               0.010907291 = queryNorm
             0.3553299 = fieldWeight in 1913, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.497461 = idf(docFreq=181, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.069723696 = weight(abstract_txt:formulation in 1913) [ClassicSimilarity], result of:
           0.069723696 = score(doc=1913,freq=1.0), product of:
             0.19222546 = queryWeight, product of:
               2.6571283 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.010907291 = queryNorm
             0.3627183 = fieldWeight in 1913, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.057142675 = weight(abstract_txt:search in 1913) [ClassicSimilarity], result of:
           0.057142675 = score(doc=1913,freq=6.0), product of:
             0.11672322 = queryWeight, product of:
               2.9281998 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.010907291 = queryNorm
             0.48955706 = fieldWeight in 1913, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.031601433 = weight(abstract_txt:terms in 1913) [ClassicSimilarity], result of:
           0.031601433 = score(doc=1913,freq=1.0), product of:
             0.14290206 = queryWeight, product of:
               3.2399726 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.010907291 = queryNorm
             0.2211405 = fieldWeight in 1913, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.46177885 = weight(abstract_txt:expansion in 1913) [ClassicSimilarity], result of:
           0.46177885 = score(doc=1913,freq=8.0), product of:
             0.48886666 = queryWeight, product of:
               7.3394403 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.010907291 = queryNorm
             0.9445906 = fieldWeight in 1913, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
         0.3704078 = weight(abstract_txt:query in 1913) [ClassicSimilarity], result of:
           0.3704078 = score(doc=1913,freq=13.0), product of:
             0.39510837 = queryWeight, product of:
               7.6189513 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.010907291 = queryNorm
             0.937484 = fieldWeight in 1913, product of:
               3.6055512 = tf(freq=13.0), with freq of:
                 13.0 = termFreq=13.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0546875 = fieldNorm(doc=1913)
       0.41666666 = coord(10/24)
   

3. Symonds, M.; Bruza, P.; Zuccon, G.; Koopman, B.; Sitbon, L.; Turner, I.: Automatic query expansion : a structural linguistic perspective (2014) 0.45

   0.45479202 = sum of:
     0.45479202 = product of:
       1.0915009 = sum of:
         0.004247513 = weight(abstract_txt:with in 2338) [ClassicSimilarity], result of:
           0.004247513 = score(doc=2338,freq=1.0), product of:
             0.027226124 = queryWeight, product of:
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.010907291 = queryNorm
             0.15600874 = fieldWeight in 2338, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.031398356 = weight(abstract_txt:process in 2338) [ClassicSimilarity], result of:
           0.031398356 = score(doc=2338,freq=3.0), product of:
             0.07163526 = queryWeight, product of:
               1.6220734 = boost
               4.048922 = idf(docFreq=2105, maxDocs=44421)
               0.010907291 = queryNorm
             0.43830866 = fieldWeight in 2338, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.048922 = idf(docFreq=2105, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.026550712 = weight(abstract_txt:approaches in 2338) [ClassicSimilarity], result of:
           0.026550712 = score(doc=2338,freq=1.0), product of:
             0.09238755 = queryWeight, product of:
               1.8421025 = boost
               4.5981455 = idf(docFreq=1215, maxDocs=44421)
               0.010907291 = queryNorm
             0.2873841 = fieldWeight in 2338, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.5981455 = idf(docFreq=1215, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.034510214 = weight(abstract_txt:considered in 2338) [ClassicSimilarity], result of:
           0.034510214 = score(doc=2338,freq=1.0), product of:
             0.11003421 = queryWeight, product of:
               2.0103467 = boost
               5.0181065 = idf(docFreq=798, maxDocs=44421)
               0.010907291 = queryNorm
             0.31363165 = fieldWeight in 2338, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0181065 = idf(docFreq=798, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.043064237 = weight(abstract_txt:original in 2338) [ClassicSimilarity], result of:
           0.043064237 = score(doc=2338,freq=1.0), product of:
             0.12753826 = queryWeight, product of:
               2.1643493 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.010907291 = queryNorm
             0.3376574 = fieldWeight in 2338, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.07968422 = weight(abstract_txt:formulation in 2338) [ClassicSimilarity], result of:
           0.07968422 = score(doc=2338,freq=1.0), product of:
             0.19222546 = queryWeight, product of:
               2.6571283 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.010907291 = queryNorm
             0.41453522 = fieldWeight in 2338, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.026661027 = weight(abstract_txt:search in 2338) [ClassicSimilarity], result of:
           0.026661027 = score(doc=2338,freq=1.0), product of:
             0.11672322 = queryWeight, product of:
               2.9281998 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.010907291 = queryNorm
             0.22841237 = fieldWeight in 2338, 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=2338)
         0.036115926 = weight(abstract_txt:terms in 2338) [ClassicSimilarity], result of:
           0.036115926 = score(doc=2338,freq=1.0), product of:
             0.14290206 = queryWeight, product of:
               3.2399726 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.010907291 = queryNorm
             0.252732 = fieldWeight in 2338, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.45704257 = weight(abstract_txt:expansion in 2338) [ClassicSimilarity], result of:
           0.45704257 = score(doc=2338,freq=6.0), product of:
             0.48886666 = queryWeight, product of:
               7.3394403 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.010907291 = queryNorm
             0.9349023 = fieldWeight in 2338, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
         0.35222617 = weight(abstract_txt:query in 2338) [ClassicSimilarity], result of:
           0.35222617 = score(doc=2338,freq=9.0), product of:
             0.39510837 = queryWeight, product of:
               7.6189513 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.010907291 = queryNorm
             0.8914672 = fieldWeight in 2338, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=2338)
       0.41666666 = coord(10/24)
   

4. Efthimiadis, E.N.: Interactive query expansion : a user-based evaluation in a relevance feedback environment (2000) 0.41

   0.40936273 = sum of:
     0.40936273 = product of:
       1.2280881 = sum of:
         0.003716574 = weight(abstract_txt:with in 6701) [ClassicSimilarity], result of:
           0.003716574 = score(doc=6701,freq=1.0), product of:
             0.027226124 = queryWeight, product of:
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.010907291 = queryNorm
             0.13650765 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.0075374586 = weight(abstract_txt:research in 6701) [ClassicSimilarity], result of:
           0.0075374586 = score(doc=6701,freq=1.0), product of:
             0.04362217 = queryWeight, product of:
               1.2657872 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.010907291 = queryNorm
             0.17278963 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.020398054 = weight(abstract_txt:three in 6701) [ClassicSimilarity], result of:
           0.020398054 = score(doc=6701,freq=1.0), product of:
             0.084712945 = queryWeight, product of:
               1.7639326 = boost
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.010907291 = queryNorm
             0.24079028 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.04174184 = weight(abstract_txt:either in 6701) [ClassicSimilarity], result of:
           0.04174184 = score(doc=6701,freq=1.0), product of:
             0.1365437 = queryWeight, product of:
               2.239458 = boost
               5.59 = idf(docFreq=450, maxDocs=44421)
               0.010907291 = queryNorm
             0.30570313 = fieldWeight in 6701, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.59 = idf(docFreq=450, maxDocs=44421)
               0.0546875 = fieldNorm(doc=6701)
         0.03299134 = weight(abstract_txt:search in 6701) [ClassicSimilarity], result of:
           0.03299134 = score(doc=6701,freq=2.0), product of:
             0.11672322 = queryWeight, product of:
               2.9281998 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.010907291 = 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)
         0.10947058 = weight(abstract_txt:terms in 6701) [ClassicSimilarity], result of:
           0.10947058 = score(doc=6701,freq=12.0), product of:
             0.14290206 = queryWeight, product of:
               3.2399726 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.010907291 = 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)
         0.5886549 = weight(abstract_txt:expansion in 6701) [ClassicSimilarity], result of:
           0.5886549 = score(doc=6701,freq=13.0), product of:
             0.48886666 = queryWeight, product of:
               7.3394403 = boost
               6.106756 = idf(docFreq=268, maxDocs=44421)
               0.010907291 = 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)
         0.4235775 = weight(abstract_txt:query in 6701) [ClassicSimilarity], result of:
           0.4235775 = score(doc=6701,freq=17.0), product of:
             0.39510837 = queryWeight, product of:
               7.6189513 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.010907291 = 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)
       0.33333334 = coord(8/24)
   

5. Sahib, N.G.; Tombros, A.; Stockman, T.: ¬A comparative analysis of the information-seeking behavior of visually impaired and sighted searchers (2012) 0.34

   0.34334365 = sum of:
     0.34334365 = product of:
       0.82402474 = sum of:
         0.004247513 = weight(abstract_txt:with in 989) [ClassicSimilarity], result of:
           0.004247513 = score(doc=989,freq=1.0), product of:
             0.027226124 = queryWeight, product of:
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.010907291 = queryNorm
             0.15600874 = fieldWeight in 989, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4961398 = idf(docFreq=9949, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.008614238 = weight(abstract_txt:research in 989) [ClassicSimilarity], result of:
           0.008614238 = score(doc=989,freq=1.0), product of:
             0.04362217 = queryWeight, product of:
               1.2657872 = boost
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.010907291 = queryNorm
             0.19747387 = fieldWeight in 989, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.159582 = idf(docFreq=5124, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.01338678 = weight(abstract_txt:different in 989) [ClassicSimilarity], result of:
           0.01338678 = score(doc=989,freq=1.0), product of:
             0.05852572 = queryWeight, product of:
               1.466157 = boost
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.010907291 = queryNorm
             0.2287333 = fieldWeight in 989, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6597328 = idf(docFreq=3107, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.031398356 = weight(abstract_txt:process in 989) [ClassicSimilarity], result of:
           0.031398356 = score(doc=989,freq=3.0), product of:
             0.07163526 = queryWeight, product of:
               1.6220734 = boost
               4.048922 = idf(docFreq=2105, maxDocs=44421)
               0.010907291 = queryNorm
             0.43830866 = fieldWeight in 989, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.048922 = idf(docFreq=2105, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.0682495 = weight(abstract_txt:stages in 989) [ClassicSimilarity], result of:
           0.0682495 = score(doc=989,freq=1.0), product of:
             0.17336535 = queryWeight, product of:
               2.5234125 = boost
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.010907291 = queryNorm
             0.3936744 = fieldWeight in 989, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.2987905 = idf(docFreq=221, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.1126905 = weight(abstract_txt:formulation in 989) [ClassicSimilarity], result of:
           0.1126905 = score(doc=989,freq=2.0), product of:
             0.19222546 = queryWeight, product of:
               2.6571283 = boost
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.010907291 = queryNorm
             0.5862413 = fieldWeight in 989, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.6325636 = idf(docFreq=158, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.08842462 = weight(abstract_txt:search in 989) [ClassicSimilarity], result of:
           0.08842462 = score(doc=989,freq=11.0), product of:
             0.11672322 = queryWeight, product of:
               2.9281998 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.010907291 = queryNorm
             0.75755817 = fieldWeight in 989, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.026879882 = weight(abstract_txt:online in 989) [ClassicSimilarity], result of:
           0.026879882 = score(doc=989,freq=1.0), product of:
             0.11736111 = queryWeight, product of:
               2.9361904 = boost
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.010907291 = queryNorm
             0.22903568 = fieldWeight in 989, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6645708 = idf(docFreq=3092, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.18254186 = weight(abstract_txt:reformulation in 989) [ClassicSimilarity], result of:
           0.18254186 = score(doc=989,freq=2.0), product of:
             0.2651313 = queryWeight, product of:
               3.1205962 = boost
               7.7894444 = idf(docFreq=49, maxDocs=44421)
               0.010907291 = queryNorm
             0.6884961 = fieldWeight in 989, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.7894444 = idf(docFreq=49, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
         0.28759146 = weight(abstract_txt:query in 989) [ClassicSimilarity], result of:
           0.28759146 = score(doc=989,freq=6.0), product of:
             0.39510837 = queryWeight, product of:
               7.6189513 = boost
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.010907291 = queryNorm
             0.72787994 = fieldWeight in 989, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.754492 = idf(docFreq=1039, maxDocs=44421)
               0.0625 = fieldNorm(doc=989)
       0.41666666 = coord(10/24)