Document (#16052)

Author

Pfeifer, U.
Poersch, T.
Fuhr, N.

Title

Retrieval effectiveness of proper name search methods

Source

Information processing and management. 32(1996) no.6, S.667-679

Year

1996

Abstract

Reviews similarity measures for searching names. These measures deal with phonetic similarity, typing errors, and plain string similarity. Shows experimentally that all 3 approaches lead to significantly higher retrieval quality than plain identity. Further improvements are possible by combining different methods. Develops a probabilistic interpretation of string similarity that leads to better results than an ad-hoc approach

Theme

Retrievalstudien

Similar documents (author)

1. Pfeifer, U.; Fuhr, N.; Huynh, T.: Searching structured documents with the enhanced retrieval functionality of freeWAIS-sf and SFgate (1995) 4.60

   4.6040435 = sum of:
     4.6040435 = sum of:
       2.0004265 = weight(author_txt:fuhr in 2282) [ClassicSimilarity], result of:
         2.0004265 = score(doc=2282,freq=1.0), product of:
           0.6426864 = queryWeight, product of:
             8.30027 = idf(docFreq=29, maxDocs=44421)
             0.07742958 = queryNorm
           3.1126013 = fieldWeight in 2282, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             8.30027 = idf(docFreq=29, maxDocs=44421)
             0.375 = fieldNorm(doc=2282)
       2.603617 = weight(author_txt:pfeifer in 2282) [ClassicSimilarity], result of:
         2.603617 = score(doc=2282,freq=1.0), product of:
           0.7661294 = queryWeight, product of:
             1.0918212 = boost
             9.06241 = idf(docFreq=13, maxDocs=44421)
             0.07742958 = queryNorm
           3.398404 = fieldWeight in 2282, product of:
             1.0 = tf(freq=1.0), with freq of:
               1.0 = termFreq=1.0
             9.06241 = idf(docFreq=13, maxDocs=44421)
             0.375 = fieldNorm(doc=2282)
   

2. Pfeifer, U.: Entwicklung linear-iterativer und logistischer Indexierungsfunktionen (1991) 2.17

   2.1696808 = sum of:
     2.1696808 = product of:
       4.3393617 = sum of:
         4.3393617 = weight(author_txt:pfeifer in 1794) [ClassicSimilarity], result of:
           4.3393617 = score(doc=1794,freq=1.0), product of:
             0.7661294 = queryWeight, product of:
               1.0918212 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.07742958 = queryNorm
             5.664006 = fieldWeight in 1794, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.625 = fieldNorm(doc=1794)
       0.5 = coord(1/2)
   

3. Pfeifer, U.: Searching structured documents with the enhanced retrieval functionality of freeWAIS-sf and SFgate (1996) 2.17

   2.1696808 = sum of:
     2.1696808 = product of:
       4.3393617 = sum of:
         4.3393617 = weight(author_txt:pfeifer in 2136) [ClassicSimilarity], result of:
           4.3393617 = score(doc=2136,freq=1.0), product of:
             0.7661294 = queryWeight, product of:
               1.0918212 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.07742958 = queryNorm
             5.664006 = fieldWeight in 2136, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.625 = fieldNorm(doc=2136)
       0.5 = coord(1/2)
   

4. Pfeifer, R.: Symbols, patterns, and behavior : beyond the information-processing metaphor (1998) 2.17

   2.1696808 = sum of:
     2.1696808 = product of:
       4.3393617 = sum of:
         4.3393617 = weight(author_txt:pfeifer in 2305) [ClassicSimilarity], result of:
           4.3393617 = score(doc=2305,freq=1.0), product of:
             0.7661294 = queryWeight, product of:
               1.0918212 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.07742958 = queryNorm
             5.664006 = fieldWeight in 2305, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.625 = fieldNorm(doc=2305)
       0.5 = coord(1/2)
   

5. Pfeifer, U.; Pennekamp, S.: Incremental processing of vague queries in interactive retrieval systems (1997) 1.74

   1.7357447 = sum of:
     1.7357447 = product of:
       3.4714894 = sum of:
         3.4714894 = weight(author_txt:pfeifer in 1735) [ClassicSimilarity], result of:
           3.4714894 = score(doc=1735,freq=1.0), product of:
             0.7661294 = queryWeight, product of:
               1.0918212 = boost
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.07742958 = queryNorm
             4.531205 = fieldWeight in 1735, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.06241 = idf(docFreq=13, maxDocs=44421)
               0.5 = fieldNorm(doc=1735)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Lutz, R.; Green, S.: Data stewardship : the care and handling of named entries (1999) 0.20

   0.20070533 = sum of:
     0.20070533 = product of:
       0.5575148 = sum of:
         0.08618983 = weight(abstract_txt:name in 710) [ClassicSimilarity], result of:
           0.08618983 = score(doc=710,freq=9.0), product of:
             0.10667332 = queryWeight, product of:
               1.0699567 = boost
               5.7456303 = idf(docFreq=385, maxDocs=44421)
               0.017352097 = queryNorm
             0.8079792 = fieldWeight in 710, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               5.7456303 = idf(docFreq=385, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.12054173 = weight(abstract_txt:names in 710) [ClassicSimilarity], result of:
           0.12054173 = score(doc=710,freq=16.0), product of:
             0.11012458 = queryWeight, product of:
               1.0871273 = boost
               5.8378363 = idf(docFreq=351, maxDocs=44421)
               0.017352097 = queryNorm
             1.0945942 = fieldWeight in 710, product of:
               4.0 = tf(freq=16.0), with freq of:
                 16.0 = termFreq=16.0
               5.8378363 = idf(docFreq=351, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.040728472 = weight(abstract_txt:leads in 710) [ClassicSimilarity], result of:
           0.040728472 = score(doc=710,freq=1.0), product of:
             0.13461642 = queryWeight, product of:
               1.2019525 = boost
               6.4544435 = idf(docFreq=189, maxDocs=44421)
               0.017352097 = queryNorm
             0.30255204 = fieldWeight in 710, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.4544435 = idf(docFreq=189, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.042305198 = weight(abstract_txt:proper in 710) [ClassicSimilarity], result of:
           0.042305198 = score(doc=710,freq=1.0), product of:
             0.13806866 = queryWeight, product of:
               1.2172669 = boost
               6.5366817 = idf(docFreq=174, maxDocs=44421)
               0.017352097 = queryNorm
             0.30640694 = fieldWeight in 710, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5366817 = idf(docFreq=174, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.060144756 = weight(abstract_txt:errors in 710) [ClassicSimilarity], result of:
           0.060144756 = score(doc=710,freq=2.0), product of:
             0.13855466 = queryWeight, product of:
               1.2194074 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.017352097 = queryNorm
             0.43408683 = fieldWeight in 710, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.022046471 = weight(abstract_txt:retrieval in 710) [ClassicSimilarity], result of:
           0.022046471 = score(doc=710,freq=3.0), product of:
             0.0781079 = queryWeight, product of:
               1.2947942 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.017352097 = queryNorm
             0.2822566 = fieldWeight in 710, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.017869703 = weight(abstract_txt:than in 710) [ClassicSimilarity], result of:
           0.017869703 = score(doc=710,freq=1.0), product of:
             0.097931154 = queryWeight, product of:
               1.4498187 = boost
               3.8927383 = idf(docFreq=2461, maxDocs=44421)
               0.017352097 = queryNorm
             0.18247211 = fieldWeight in 710, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.8927383 = idf(docFreq=2461, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.048362505 = weight(abstract_txt:measures in 710) [ClassicSimilarity], result of:
           0.048362505 = score(doc=710,freq=1.0), product of:
             0.19018744 = queryWeight, product of:
               2.0204318 = boost
               5.424824 = idf(docFreq=531, maxDocs=44421)
               0.017352097 = queryNorm
             0.25428864 = fieldWeight in 710, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.424824 = idf(docFreq=531, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
         0.11932609 = weight(abstract_txt:similarity in 710) [ClassicSimilarity], result of:
           0.11932609 = score(doc=710,freq=1.0), product of:
             0.43753177 = queryWeight, product of:
               4.333842 = boost
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.017352097 = queryNorm
             0.27272555 = fieldWeight in 710, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.046875 = fieldNorm(doc=710)
       0.36 = coord(9/25)
   

2. Galvez, C.; Moya-Anegón, F.: Approximate personal name-matching through finite-state graphs (2007) 0.17

   0.16546181 = sum of:
     0.16546181 = product of:
       0.59093505 = sum of:
         0.054173704 = weight(abstract_txt:name in 1614) [ClassicSimilarity], result of:
           0.054173704 = score(doc=1614,freq=2.0), product of:
             0.10667332 = queryWeight, product of:
               1.0699567 = boost
               5.7456303 = idf(docFreq=385, maxDocs=44421)
               0.017352097 = queryNorm
             0.5078468 = fieldWeight in 1614, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.7456303 = idf(docFreq=385, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
         0.04018058 = weight(abstract_txt:names in 1614) [ClassicSimilarity], result of:
           0.04018058 = score(doc=1614,freq=1.0), product of:
             0.11012458 = queryWeight, product of:
               1.0871273 = boost
               5.8378363 = idf(docFreq=351, maxDocs=44421)
               0.017352097 = queryNorm
             0.36486477 = fieldWeight in 1614, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8378363 = idf(docFreq=351, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
         0.016971383 = weight(abstract_txt:retrieval in 1614) [ClassicSimilarity], result of:
           0.016971383 = score(doc=1614,freq=1.0), product of:
             0.0781079 = queryWeight, product of:
               1.2947942 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.017352097 = queryNorm
             0.21728125 = fieldWeight in 1614, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
         0.040634874 = weight(abstract_txt:methods in 1614) [ClassicSimilarity], result of:
           0.040634874 = score(doc=1614,freq=2.0), product of:
             0.1109531 = queryWeight, product of:
               1.5432028 = boost
               4.1434727 = idf(docFreq=1915, maxDocs=44421)
               0.017352097 = queryNorm
             0.3662347 = fieldWeight in 1614, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1434727 = idf(docFreq=1915, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
         0.06448334 = weight(abstract_txt:measures in 1614) [ClassicSimilarity], result of:
           0.06448334 = score(doc=1614,freq=1.0), product of:
             0.19018744 = queryWeight, product of:
               2.0204318 = boost
               5.424824 = idf(docFreq=531, maxDocs=44421)
               0.017352097 = queryNorm
             0.3390515 = fieldWeight in 1614, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.424824 = idf(docFreq=531, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
         0.14948773 = weight(abstract_txt:string in 1614) [ClassicSimilarity], result of:
           0.14948773 = score(doc=1614,freq=1.0), product of:
             0.3331352 = queryWeight, product of:
               2.6740131 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.017352097 = queryNorm
             0.44872993 = fieldWeight in 1614, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
         0.22500344 = weight(abstract_txt:similarity in 1614) [ClassicSimilarity], result of:
           0.22500344 = score(doc=1614,freq=2.0), product of:
             0.43753177 = queryWeight, product of:
               4.333842 = boost
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.017352097 = queryNorm
             0.51425624 = fieldWeight in 1614, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.0625 = fieldNorm(doc=1614)
       0.28 = coord(7/25)
   

3. Bakar, Z.A.; Sembok, T.M.T.; Yusoff, M.: ¬An evaluation of retrieval effectiveness using spelling-correction and string-similarity matching methods on Malay texts (2000) 0.14

   0.14190827 = sum of:
     0.14190827 = product of:
       0.7095413 = sum of:
         0.021214228 = weight(abstract_txt:retrieval in 5804) [ClassicSimilarity], result of:
           0.021214228 = score(doc=5804,freq=1.0), product of:
             0.0781079 = queryWeight, product of:
               1.2947942 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.017352097 = queryNorm
             0.27160156 = fieldWeight in 5804, 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=5804)
         0.062209193 = weight(abstract_txt:methods in 5804) [ClassicSimilarity], result of:
           0.062209193 = score(doc=5804,freq=3.0), product of:
             0.1109531 = queryWeight, product of:
               1.5432028 = boost
               4.1434727 = idf(docFreq=1915, maxDocs=44421)
               0.017352097 = queryNorm
             0.5606801 = fieldWeight in 5804, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.1434727 = idf(docFreq=1915, maxDocs=44421)
               0.078125 = fieldNorm(doc=5804)
         0.08060417 = weight(abstract_txt:measures in 5804) [ClassicSimilarity], result of:
           0.08060417 = score(doc=5804,freq=1.0), product of:
             0.19018744 = queryWeight, product of:
               2.0204318 = boost
               5.424824 = idf(docFreq=531, maxDocs=44421)
               0.017352097 = queryNorm
             0.4238144 = fieldWeight in 5804, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.424824 = idf(docFreq=531, maxDocs=44421)
               0.078125 = fieldNorm(doc=5804)
         0.26425946 = weight(abstract_txt:string in 5804) [ClassicSimilarity], result of:
           0.26425946 = score(doc=5804,freq=2.0), product of:
             0.3331352 = queryWeight, product of:
               2.6740131 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.017352097 = queryNorm
             0.7932499 = fieldWeight in 5804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.078125 = fieldNorm(doc=5804)
         0.2812543 = weight(abstract_txt:similarity in 5804) [ClassicSimilarity], result of:
           0.2812543 = score(doc=5804,freq=2.0), product of:
             0.43753177 = queryWeight, product of:
               4.333842 = boost
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.017352097 = queryNorm
             0.6428203 = fieldWeight in 5804, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.078125 = fieldNorm(doc=5804)
       0.2 = coord(5/25)
   

4. Lam-Adesina, A.M.; Jones, G.J.F.: Examining and improving the effectiveness of relevance feedback for retrieval of scanned text documents (2006) 0.12

   0.12267922 = sum of:
     0.12267922 = product of:
       0.5111634 = sum of:
         0.03339699 = weight(abstract_txt:significantly in 1977) [ClassicSimilarity], result of:
           0.03339699 = score(doc=1977,freq=1.0), product of:
             0.097352035 = queryWeight, product of:
               1.022141 = boost
               5.4888616 = idf(docFreq=498, maxDocs=44421)
               0.017352097 = queryNorm
             0.34305385 = fieldWeight in 1977, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4888616 = idf(docFreq=498, maxDocs=44421)
               0.0625 = fieldNorm(doc=1977)
         0.09821597 = weight(abstract_txt:errors in 1977) [ClassicSimilarity], result of:
           0.09821597 = score(doc=1977,freq=3.0), product of:
             0.13855466 = queryWeight, product of:
               1.2194074 = boost
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.017352097 = queryNorm
             0.7088608 = fieldWeight in 1977, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.548176 = idf(docFreq=172, maxDocs=44421)
               0.0625 = fieldNorm(doc=1977)
         0.04157123 = weight(abstract_txt:retrieval in 1977) [ClassicSimilarity], result of:
           0.04157123 = score(doc=1977,freq=6.0), product of:
             0.0781079 = queryWeight, product of:
               1.2947942 = boost
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.017352097 = queryNorm
             0.53222823 = fieldWeight in 1977, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.4765 = idf(docFreq=3732, maxDocs=44421)
               0.0625 = fieldNorm(doc=1977)
         0.05746639 = weight(abstract_txt:methods in 1977) [ClassicSimilarity], result of:
           0.05746639 = score(doc=1977,freq=4.0), product of:
             0.1109531 = queryWeight, product of:
               1.5432028 = boost
               4.1434727 = idf(docFreq=1915, maxDocs=44421)
               0.017352097 = queryNorm
             0.5179341 = fieldWeight in 1977, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.1434727 = idf(docFreq=1915, maxDocs=44421)
               0.0625 = fieldNorm(doc=1977)
         0.13102509 = weight(abstract_txt:experimentally in 1977) [ClassicSimilarity], result of:
           0.13102509 = score(doc=1977,freq=1.0), product of:
             0.24216412 = queryWeight, product of:
               1.6121044 = boost
               8.656945 = idf(docFreq=20, maxDocs=44421)
               0.017352097 = queryNorm
             0.5410591 = fieldWeight in 1977, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.656945 = idf(docFreq=20, maxDocs=44421)
               0.0625 = fieldNorm(doc=1977)
         0.14948773 = weight(abstract_txt:string in 1977) [ClassicSimilarity], result of:
           0.14948773 = score(doc=1977,freq=1.0), product of:
             0.3331352 = queryWeight, product of:
               2.6740131 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.017352097 = queryNorm
             0.44872993 = fieldWeight in 1977, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.0625 = fieldNorm(doc=1977)
       0.24 = coord(6/25)
   

5. Navarro, G.; Baeza-Yates, R.; Azevedo Arcoverde, J.M.: Matchsimile : a flexible approximate matching tool for searching proper names (2003) 0.12

   0.120915964 = sum of:
     0.120915964 = product of:
       0.6045798 = sum of:
         0.04788324 = weight(abstract_txt:name in 2420) [ClassicSimilarity], result of:
           0.04788324 = score(doc=2420,freq=1.0), product of:
             0.10667332 = queryWeight, product of:
               1.0699567 = boost
               5.7456303 = idf(docFreq=385, maxDocs=44421)
               0.017352097 = queryNorm
             0.44887736 = fieldWeight in 2420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7456303 = idf(docFreq=385, maxDocs=44421)
               0.078125 = fieldNorm(doc=2420)
         0.100451455 = weight(abstract_txt:names in 2420) [ClassicSimilarity], result of:
           0.100451455 = score(doc=2420,freq=4.0), product of:
             0.11012458 = queryWeight, product of:
               1.0871273 = boost
               5.8378363 = idf(docFreq=351, maxDocs=44421)
               0.017352097 = queryNorm
             0.91216195 = fieldWeight in 2420, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.8378363 = idf(docFreq=351, maxDocs=44421)
               0.078125 = fieldNorm(doc=2420)
         0.07050866 = weight(abstract_txt:proper in 2420) [ClassicSimilarity], result of:
           0.07050866 = score(doc=2420,freq=1.0), product of:
             0.13806866 = queryWeight, product of:
               1.2172669 = boost
               6.5366817 = idf(docFreq=174, maxDocs=44421)
               0.017352097 = queryNorm
             0.51067823 = fieldWeight in 2420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5366817 = idf(docFreq=174, maxDocs=44421)
               0.078125 = fieldNorm(doc=2420)
         0.18685967 = weight(abstract_txt:string in 2420) [ClassicSimilarity], result of:
           0.18685967 = score(doc=2420,freq=1.0), product of:
             0.3331352 = queryWeight, product of:
               2.6740131 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.017352097 = queryNorm
             0.56091243 = fieldWeight in 2420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.078125 = fieldNorm(doc=2420)
         0.19887683 = weight(abstract_txt:similarity in 2420) [ClassicSimilarity], result of:
           0.19887683 = score(doc=2420,freq=1.0), product of:
             0.43753177 = queryWeight, product of:
               4.333842 = boost
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.017352097 = queryNorm
             0.4545426 = fieldWeight in 2420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8181453 = idf(docFreq=358, maxDocs=44421)
               0.078125 = fieldNorm(doc=2420)
       0.2 = coord(5/25)