Document (#23263)

Author

Burgin, R.

Title

¬The effect of indexing exhaustivity on retrieval performance

Source

Information processing and management. 27(1991) no.6, S.623-628

Year

1991

Abstract

The study was based on the collection examnined by W.H. Shaw (Inf. proc. man. 26(1990) no.6, S.693-703, 705-718), a test collection of 1239 articles, indexed with the term cystic fibrosis; and 100 queries with 3 sets of relevance evaluations from subject experts. The effect of variations in indexing exhaustivity on retrieval performance in a vector space retrieval system was investigated by using a term weight threshold to construct different document representations for a test collection. Retrieval results showed that retrieval performance, as measured by the mean optimal measure for all queries at a term weight threshold, was highest at the most exhaustive representation, and decreased slightly as terms were eliminated and the indexing representation became less exhaustive. The findings suggest that the vector space model is more robust against variations in indexing exhaustivity that is the single-link clustering model

Theme

Indexierungsstudien

Similar documents (author)

1. Burgin, R.: Variations in relevance judgements and the evaluation of retrieval performance (1992) 6.01

   6.010904 = sum of:
     6.010904 = weight(author_txt:burgin in 3308) [ClassicSimilarity], result of:
       6.010904 = fieldWeight in 3308, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.617446 = idf(docFreq=7, maxDocs=44218)
         0.625 = fieldNorm(doc=3308)
   

2. Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995) 6.01

   6.010904 = sum of:
     6.010904 = weight(author_txt:burgin in 3365) [ClassicSimilarity], result of:
       6.010904 = fieldWeight in 3365, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.617446 = idf(docFreq=7, maxDocs=44218)
         0.625 = fieldNorm(doc=3365)
   

3. Burgin, M.: Terminological and teleological systems (1996) 6.01

   6.010904 = sum of:
     6.010904 = weight(author_txt:burgin in 6323) [ClassicSimilarity], result of:
       6.010904 = fieldWeight in 6323, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.617446 = idf(docFreq=7, maxDocs=44218)
         0.625 = fieldNorm(doc=6323)
   

4. Burgin, R.: ¬The Monte Carlo method and the evaluation of retrieval system performance (1999) 6.01

   6.010904 = sum of:
     6.010904 = weight(author_txt:burgin in 2946) [ClassicSimilarity], result of:
       6.010904 = fieldWeight in 2946, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.617446 = idf(docFreq=7, maxDocs=44218)
         0.625 = fieldNorm(doc=2946)
   

5. Shaw, W.M.; Burgin, R.; Howell, P.: Performance standards and evaluations in IR test collections : cluster-based retrieval models (1997) 3.61

   3.606542 = sum of:
     3.606542 = weight(author_txt:burgin in 7256) [ClassicSimilarity], result of:
       3.606542 = fieldWeight in 7256, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.617446 = idf(docFreq=7, maxDocs=44218)
         0.375 = fieldNorm(doc=7256)
   

Similar documents (content)

1. Shaw, W.M.: Subject and citation indexing : pt.1: the clustering structure of composite representations in the cystic fibrosis document collection (1991) 0.41

   0.41280845 = sum of:
     0.41280845 = product of:
       1.2900264 = sum of:
         0.007263006 = weight(abstract_txt:that in 4841) [ClassicSimilarity], result of:
           0.007263006 = score(doc=4841,freq=1.0), product of:
             0.03923505 = queryWeight, product of:
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.016558541 = queryNorm
             0.18511525 = fieldWeight in 4841, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.09526446 = weight(abstract_txt:decreased in 4841) [ClassicSimilarity], result of:
           0.09526446 = score(doc=4841,freq=1.0), product of:
             0.15130158 = queryWeight, product of:
               1.1337675 = boost
               8.059301 = idf(docFreq=37, maxDocs=44218)
               0.016558541 = queryNorm
             0.62963295 = fieldWeight in 4841, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.059301 = idf(docFreq=37, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.15088022 = weight(abstract_txt:cystic in 4841) [ClassicSimilarity], result of:
           0.15088022 = score(doc=4841,freq=1.0), product of:
             0.20557852 = queryWeight, product of:
               1.3215729 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.016558541 = queryNorm
             0.7339299 = fieldWeight in 4841, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.15088022 = weight(abstract_txt:fibrosis in 4841) [ClassicSimilarity], result of:
           0.15088022 = score(doc=4841,freq=1.0), product of:
             0.20557852 = queryWeight, product of:
               1.3215729 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.016558541 = queryNorm
             0.7339299 = fieldWeight in 4841, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.061530836 = weight(abstract_txt:representation in 4841) [ClassicSimilarity], result of:
           0.061530836 = score(doc=4841,freq=2.0), product of:
             0.113053694 = queryWeight, product of:
               1.3859886 = boost
               4.926098 = idf(docFreq=871, maxDocs=44218)
               0.016558541 = queryNorm
             0.54426205 = fieldWeight in 4841, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.926098 = idf(docFreq=871, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.0775557 = weight(abstract_txt:collection in 4841) [ClassicSimilarity], result of:
           0.0775557 = score(doc=4841,freq=2.0), product of:
             0.15100655 = queryWeight, product of:
               1.9618274 = boost
               4.648501 = idf(docFreq=1150, maxDocs=44218)
               0.016558541 = queryNorm
             0.51359165 = fieldWeight in 4841, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.648501 = idf(docFreq=1150, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.17041324 = weight(abstract_txt:exhaustive in 4841) [ClassicSimilarity], result of:
           0.17041324 = score(doc=4841,freq=1.0), product of:
             0.2809108 = queryWeight, product of:
               2.1847486 = boost
               7.7650614 = idf(docFreq=50, maxDocs=44218)
               0.016558541 = queryNorm
             0.6066454 = fieldWeight in 4841, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.7650614 = idf(docFreq=50, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
         0.57623875 = weight(abstract_txt:exhaustivity in 4841) [ClassicSimilarity], result of:
           0.57623875 = score(doc=4841,freq=3.0), product of:
             0.5022938 = queryWeight, product of:
               3.5780122 = boost
               8.478011 = idf(docFreq=24, maxDocs=44218)
               0.016558541 = queryNorm
             1.1472145 = fieldWeight in 4841, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               8.478011 = idf(docFreq=24, maxDocs=44218)
               0.078125 = fieldNorm(doc=4841)
       0.32 = coord(8/25)
   

2. Sparck Jones, K.: ¬A statistical interpretation of term specificity and its application in retrieval (2004) 0.31

   0.30702794 = sum of:
     0.30702794 = product of:
       0.9594623 = sum of:
         0.01948869 = weight(abstract_txt:that in 4420) [ClassicSimilarity], result of:
           0.01948869 = score(doc=4420,freq=5.0), product of:
             0.03923505 = queryWeight, product of:
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.016558541 = queryNorm
             0.49671632 = fieldWeight in 4420, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.0793896 = weight(abstract_txt:test in 4420) [ClassicSimilarity], result of:
           0.0793896 = score(doc=4420,freq=2.0), product of:
             0.118652746 = queryWeight, product of:
               1.4198948 = boost
               5.046608 = idf(docFreq=772, maxDocs=44218)
               0.016558541 = queryNorm
             0.669092 = fieldWeight in 4420, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.046608 = idf(docFreq=772, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.1321461 = weight(abstract_txt:variations in 4420) [ClassicSimilarity], result of:
           0.1321461 = score(doc=4420,freq=1.0), product of:
             0.20996566 = queryWeight, product of:
               1.8888236 = boost
               6.7132807 = idf(docFreq=145, maxDocs=44218)
               0.016558541 = queryNorm
             0.6293701 = fieldWeight in 4420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.7132807 = idf(docFreq=145, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.09198508 = weight(abstract_txt:performance in 4420) [ClassicSimilarity], result of:
           0.09198508 = score(doc=4420,freq=2.0), product of:
             0.14983411 = queryWeight, product of:
               1.9541966 = boost
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.016558541 = queryNorm
             0.61391276 = fieldWeight in 4420, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.0658082 = weight(abstract_txt:collection in 4420) [ClassicSimilarity], result of:
           0.0658082 = score(doc=4420,freq=1.0), product of:
             0.15100655 = queryWeight, product of:
               1.9618274 = boost
               4.648501 = idf(docFreq=1150, maxDocs=44218)
               0.016558541 = queryNorm
             0.43579698 = fieldWeight in 4420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.648501 = idf(docFreq=1150, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.12558925 = weight(abstract_txt:term in 4420) [ClassicSimilarity], result of:
           0.12558925 = score(doc=4420,freq=3.0), product of:
             0.16109066 = queryWeight, product of:
               2.0262735 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.016558541 = queryNorm
             0.7796185 = fieldWeight in 4420, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.045825437 = weight(abstract_txt:retrieval in 4420) [ClassicSimilarity], result of:
           0.045825437 = score(doc=4420,freq=1.0), product of:
             0.14065757 = queryWeight, product of:
               2.4443805 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.016558541 = queryNorm
             0.3257943 = fieldWeight in 4420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
         0.3992299 = weight(abstract_txt:exhaustivity in 4420) [ClassicSimilarity], result of:
           0.3992299 = score(doc=4420,freq=1.0), product of:
             0.5022938 = queryWeight, product of:
               3.5780122 = boost
               8.478011 = idf(docFreq=24, maxDocs=44218)
               0.016558541 = queryNorm
             0.7948135 = fieldWeight in 4420, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.478011 = idf(docFreq=24, maxDocs=44218)
               0.09375 = fieldNorm(doc=4420)
       0.32 = coord(8/25)
   

3. Paralic, J.; Kostial, I.: Ontology-based information retrieval (2003) 0.28

   0.27796754 = sum of:
     0.27796754 = product of:
       0.77213204 = sum of:
         0.032604083 = weight(abstract_txt:model in 1153) [ClassicSimilarity], result of:
           0.032604083 = score(doc=1153,freq=2.0), product of:
             0.07402939 = queryWeight, product of:
               1.1215519 = boost
               3.986234 = idf(docFreq=2231, maxDocs=44218)
               0.016558541 = queryNorm
             0.44042078 = fieldWeight in 1153, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.986234 = idf(docFreq=2231, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.15088022 = weight(abstract_txt:cystic in 1153) [ClassicSimilarity], result of:
           0.15088022 = score(doc=1153,freq=1.0), product of:
             0.20557852 = queryWeight, product of:
               1.3215729 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.016558541 = queryNorm
             0.7339299 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.15088022 = weight(abstract_txt:fibrosis in 1153) [ClassicSimilarity], result of:
           0.15088022 = score(doc=1153,freq=1.0), product of:
             0.20557852 = queryWeight, product of:
               1.3215729 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.016558541 = queryNorm
             0.7339299 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.043508872 = weight(abstract_txt:representation in 1153) [ClassicSimilarity], result of:
           0.043508872 = score(doc=1153,freq=1.0), product of:
             0.113053694 = queryWeight, product of:
               1.3859886 = boost
               4.926098 = idf(docFreq=871, maxDocs=44218)
               0.016558541 = queryNorm
             0.3848514 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.926098 = idf(docFreq=871, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.14271641 = weight(abstract_txt:vector in 1153) [ClassicSimilarity], result of:
           0.14271641 = score(doc=1153,freq=2.0), product of:
             0.19809437 = queryWeight, product of:
               1.8346504 = boost
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.016558541 = queryNorm
             0.7204466 = fieldWeight in 1153, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.054840162 = weight(abstract_txt:collection in 1153) [ClassicSimilarity], result of:
           0.054840162 = score(doc=1153,freq=1.0), product of:
             0.15100655 = queryWeight, product of:
               1.9618274 = boost
               4.648501 = idf(docFreq=1150, maxDocs=44218)
               0.016558541 = queryNorm
             0.36316413 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.648501 = idf(docFreq=1150, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.060424156 = weight(abstract_txt:term in 1153) [ClassicSimilarity], result of:
           0.060424156 = score(doc=1153,freq=1.0), product of:
             0.16109066 = queryWeight, product of:
               2.0262735 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.016558541 = queryNorm
             0.37509412 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.07637573 = weight(abstract_txt:retrieval in 1153) [ClassicSimilarity], result of:
           0.07637573 = score(doc=1153,freq=4.0), product of:
             0.14065757 = queryWeight, product of:
               2.4443805 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.016558541 = queryNorm
             0.5429905 = fieldWeight in 1153, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
         0.059902214 = weight(abstract_txt:indexing in 1153) [ClassicSimilarity], result of:
           0.059902214 = score(doc=1153,freq=1.0), product of:
             0.1762807 = queryWeight, product of:
               2.4475675 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.016558541 = queryNorm
             0.3398115 = fieldWeight in 1153, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.078125 = fieldNorm(doc=1153)
       0.36 = coord(9/25)
   

4. Shaw, W.M.: Subject and citation indexing : pt.2: the optimal, cluster-based retrieval performance of composite representations (1991) 0.27

   0.27074775 = sum of:
     0.27074775 = product of:
       0.96695626 = sum of:
         0.008715607 = weight(abstract_txt:that in 4842) [ClassicSimilarity], result of:
           0.008715607 = score(doc=4842,freq=1.0), product of:
             0.03923505 = queryWeight, product of:
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.016558541 = queryNorm
             0.22213829 = fieldWeight in 4842, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
         0.073837 = weight(abstract_txt:representation in 4842) [ClassicSimilarity], result of:
           0.073837 = score(doc=4842,freq=2.0), product of:
             0.113053694 = queryWeight, product of:
               1.3859886 = boost
               4.926098 = idf(docFreq=871, maxDocs=44218)
               0.016558541 = queryNorm
             0.65311444 = fieldWeight in 4842, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.926098 = idf(docFreq=871, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
         0.05816234 = weight(abstract_txt:queries in 4842) [ClassicSimilarity], result of:
           0.05816234 = score(doc=4842,freq=1.0), product of:
             0.12148984 = queryWeight, product of:
               1.43677 = boost
               5.106586 = idf(docFreq=727, maxDocs=44218)
               0.016558541 = queryNorm
             0.47874242 = fieldWeight in 4842, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.106586 = idf(docFreq=727, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
         0.09198508 = weight(abstract_txt:performance in 4842) [ClassicSimilarity], result of:
           0.09198508 = score(doc=4842,freq=2.0), product of:
             0.14983411 = queryWeight, product of:
               1.9541966 = boost
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.016558541 = queryNorm
             0.61391276 = fieldWeight in 4842, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
         0.28920087 = weight(abstract_txt:exhaustive in 4842) [ClassicSimilarity], result of:
           0.28920087 = score(doc=4842,freq=2.0), product of:
             0.2809108 = queryWeight, product of:
               2.1847486 = boost
               7.7650614 = idf(docFreq=50, maxDocs=44218)
               0.016558541 = queryNorm
             1.0295115 = fieldWeight in 4842, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.7650614 = idf(docFreq=50, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
         0.045825437 = weight(abstract_txt:retrieval in 4842) [ClassicSimilarity], result of:
           0.045825437 = score(doc=4842,freq=1.0), product of:
             0.14065757 = queryWeight, product of:
               2.4443805 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.016558541 = queryNorm
             0.3257943 = fieldWeight in 4842, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
         0.3992299 = weight(abstract_txt:exhaustivity in 4842) [ClassicSimilarity], result of:
           0.3992299 = score(doc=4842,freq=1.0), product of:
             0.5022938 = queryWeight, product of:
               3.5780122 = boost
               8.478011 = idf(docFreq=24, maxDocs=44218)
               0.016558541 = queryNorm
             0.7948135 = fieldWeight in 4842, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.478011 = idf(docFreq=24, maxDocs=44218)
               0.09375 = fieldNorm(doc=4842)
       0.28 = coord(7/25)
   

5. Li, D.; Kwong, C.-P.; Lee, D.L.: Unified linear subspace approach to semantic analysis (2009) 0.22

   0.21737814 = sum of:
     0.21737814 = product of:
       0.60382813 = sum of:
         0.010063916 = weight(abstract_txt:that in 3321) [ClassicSimilarity], result of:
           0.010063916 = score(doc=3321,freq=3.0), product of:
             0.03923505 = queryWeight, product of:
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.016558541 = queryNorm
             0.2565032 = fieldWeight in 3321, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.3694751 = idf(docFreq=11241, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.026083266 = weight(abstract_txt:model in 3321) [ClassicSimilarity], result of:
           0.026083266 = score(doc=3321,freq=2.0), product of:
             0.07402939 = queryWeight, product of:
               1.1215519 = boost
               3.986234 = idf(docFreq=2231, maxDocs=44218)
               0.016558541 = queryNorm
             0.35233662 = fieldWeight in 3321, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.986234 = idf(docFreq=2231, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.03742462 = weight(abstract_txt:test in 3321) [ClassicSimilarity], result of:
           0.03742462 = score(doc=3321,freq=1.0), product of:
             0.118652746 = queryWeight, product of:
               1.4198948 = boost
               5.046608 = idf(docFreq=772, maxDocs=44218)
               0.016558541 = queryNorm
             0.315413 = fieldWeight in 3321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.046608 = idf(docFreq=772, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.12913954 = weight(abstract_txt:space in 3321) [ClassicSimilarity], result of:
           0.12913954 = score(doc=3321,freq=8.0), product of:
             0.13547185 = queryWeight, product of:
               1.5171964 = boost
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.016558541 = queryNorm
             0.95325744 = fieldWeight in 3321, product of:
               2.828427 = tf(freq=8.0), with freq of:
                 8.0 = termFreq=8.0
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.13983294 = weight(abstract_txt:vector in 3321) [ClassicSimilarity], result of:
           0.13983294 = score(doc=3321,freq=3.0), product of:
             0.19809437 = queryWeight, product of:
               1.8346504 = boost
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.016558541 = queryNorm
             0.70589054 = fieldWeight in 3321, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.061323382 = weight(abstract_txt:performance in 3321) [ClassicSimilarity], result of:
           0.061323382 = score(doc=3321,freq=2.0), product of:
             0.14983411 = queryWeight, product of:
               1.9541966 = boost
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.016558541 = queryNorm
             0.40927517 = fieldWeight in 3321, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.63042 = idf(docFreq=1171, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.08372617 = weight(abstract_txt:term in 3321) [ClassicSimilarity], result of:
           0.08372617 = score(doc=3321,freq=3.0), product of:
             0.16109066 = queryWeight, product of:
               2.0262735 = boost
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.016558541 = queryNorm
             0.51974565 = fieldWeight in 3321, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.8012047 = idf(docFreq=987, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.06831253 = weight(abstract_txt:retrieval in 3321) [ClassicSimilarity], result of:
           0.06831253 = score(doc=3321,freq=5.0), product of:
             0.14065757 = queryWeight, product of:
               2.4443805 = boost
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.016558541 = queryNorm
             0.4856655 = fieldWeight in 3321, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.4751394 = idf(docFreq=3720, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.047921773 = weight(abstract_txt:indexing in 3321) [ClassicSimilarity], result of:
           0.047921773 = score(doc=3321,freq=1.0), product of:
             0.1762807 = queryWeight, product of:
               2.4475675 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.016558541 = queryNorm
             0.27184922 = fieldWeight in 3321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
       0.36 = coord(9/25)