Document (#35835)

Author

Martin, D.I.
Berry, M.W.

Title

Latent Semantic Indexing

Source

Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates

Imprint

London : Taylor & Francis

Year

2009

Pages

S.3195-3204

Abstract

Latent Semantic Indexing (LSI) is a proven successful indexing and retrieval method. This method is based on an automated, mathematical technique known as singular value decomposition (SVD). Given a large information database, LSI uses SVD to create a "semantic space" of the document collection where both terms and documents are represented. It does this by producing a reduced dimensional vector space in which the underlying or "latent" semantic structure in the pattern of word usage of the document collection emerges. Similarities between terms, terms and documents, or documents in the document collection are then based on semantic content not on individual terms. This ability to extract meaning of terms and documents has given LSI success in many different applications.

Content

Digital unter: http://dx.doi.org/10.1081/E-ELIS3-120044505. Vgl.: http://www.tandfonline.com/doi/book/10.1081/E-ELIS3.

Object

Latent semantic indexing

Similar documents (author)

1. Berry, J.: CD-ROM: the medium for the moment (1992) 2.43

   2.432713 = sum of:
     2.432713 = product of:
       4.865426 = sum of:
         4.865426 = weight(author_txt:berry in 3635) [ClassicSimilarity], result of:
           4.865426 = score(doc=3635,freq=1.0), product of:
             0.8450605 = queryWeight, product of:
               1.2571896 = boost
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.07296827 = queryNorm
             5.7574883 = fieldWeight in 3635, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.625 = fieldNorm(doc=3635)
       0.5 = coord(1/2)
   

2. Courtois, M.P.; Berry, M.W.: Results ranking in Web search engines (1999) 1.95

   1.9461703 = sum of:
     1.9461703 = product of:
       3.8923407 = sum of:
         3.8923407 = weight(author_txt:berry in 3726) [ClassicSimilarity], result of:
           3.8923407 = score(doc=3726,freq=1.0), product of:
             0.8450605 = queryWeight, product of:
               1.2571896 = boost
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.07296827 = queryNorm
             4.6059904 = fieldWeight in 3726, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.5 = fieldNorm(doc=3726)
       0.5 = coord(1/2)
   

3. Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (1999) 1.95

   1.9461703 = sum of:
     1.9461703 = product of:
       3.8923407 = sum of:
         3.8923407 = weight(author_txt:berry in 5777) [ClassicSimilarity], result of:
           3.8923407 = score(doc=5777,freq=1.0), product of:
             0.8450605 = queryWeight, product of:
               1.2571896 = boost
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.07296827 = queryNorm
             4.6059904 = fieldWeight in 5777, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.5 = fieldNorm(doc=5777)
       0.5 = coord(1/2)
   

4. Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (2005) 1.95

   1.9461703 = sum of:
     1.9461703 = product of:
       3.8923407 = sum of:
         3.8923407 = weight(author_txt:berry in 7) [ClassicSimilarity], result of:
           3.8923407 = score(doc=7,freq=1.0), product of:
             0.8450605 = queryWeight, product of:
               1.2571896 = boost
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.07296827 = queryNorm
             4.6059904 = fieldWeight in 7, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.5 = fieldNorm(doc=7)
       0.5 = coord(1/2)
   

5. Earle, R.E.; Berry, R.; Nichols, M.C.: Indexing online information (1996) 1.46

   1.4596277 = sum of:
     1.4596277 = product of:
       2.9192555 = sum of:
         2.9192555 = weight(author_txt:berry in 5126) [ClassicSimilarity], result of:
           2.9192555 = score(doc=5126,freq=1.0), product of:
             0.8450605 = queryWeight, product of:
               1.2571896 = boost
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.07296827 = queryNorm
             3.4544928 = fieldWeight in 5126, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.211981 = idf(docFreq=11, maxDocs=44218)
               0.375 = fieldNorm(doc=5126)
       0.5 = coord(1/2)
   

Similar documents (content)

1. Zhu, W.Z.; Allen, R.B.: Document clustering using the LSI subspace signature model (2013) 0.70

   0.6982862 = sum of:
     0.6982862 = product of:
       1.4547629 = sum of:
         0.016566155 = weight(abstract_txt:based in 690) [ClassicSimilarity], result of:
           0.016566155 = score(doc=690,freq=1.0), product of:
             0.06651556 = queryWeight, product of:
               1.0956676 = boost
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.019043025 = queryNorm
             0.24905685 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.070885345 = weight(abstract_txt:vector in 690) [ClassicSimilarity], result of:
           0.070885345 = score(doc=690,freq=1.0), product of:
             0.13914567 = queryWeight, product of:
               1.120565 = boost
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.019043025 = queryNorm
             0.5094326 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.010776283 = weight(abstract_txt:this in 690) [ClassicSimilarity], result of:
           0.010776283 = score(doc=690,freq=1.0), product of:
             0.05716346 = queryWeight, product of:
               1.2440048 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019043025 = queryNorm
             0.18851699 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.12666017 = weight(abstract_txt:decomposition in 690) [ClassicSimilarity], result of:
           0.12666017 = score(doc=690,freq=1.0), product of:
             0.20489222 = queryWeight, product of:
               1.3597684 = boost
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.019043025 = queryNorm
             0.6181795 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.14595662 = weight(abstract_txt:singular in 690) [ClassicSimilarity], result of:
           0.14595662 = score(doc=690,freq=1.0), product of:
             0.22520669 = queryWeight, product of:
               1.4255841 = boost
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.019043025 = queryNorm
             0.64810073 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.08017739 = weight(abstract_txt:space in 690) [ClassicSimilarity], result of:
           0.08017739 = score(doc=690,freq=1.0), product of:
             0.1903166 = queryWeight, product of:
               1.8533418 = boost
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.019043025 = queryNorm
             0.42128426 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.10507804 = weight(abstract_txt:document in 690) [ClassicSimilarity], result of:
           0.10507804 = score(doc=690,freq=3.0), product of:
             0.18090062 = queryWeight, product of:
               2.2130075 = boost
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.019043025 = queryNorm
             0.5808606 = fieldWeight in 690, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.08925792 = weight(abstract_txt:indexing in 690) [ClassicSimilarity], result of:
           0.08925792 = score(doc=690,freq=2.0), product of:
             0.18573496 = queryWeight, product of:
               2.2423823 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.019043025 = queryNorm
             0.48056605 = fieldWeight in 690, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.07158628 = weight(abstract_txt:documents in 690) [ClassicSimilarity], result of:
           0.07158628 = score(doc=690,freq=1.0), product of:
             0.22233368 = queryWeight, product of:
               2.8329234 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.019043025 = queryNorm
             0.32197678 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.084533095 = weight(abstract_txt:terms in 690) [ClassicSimilarity], result of:
           0.084533095 = score(doc=690,freq=1.0), product of:
             0.26757154 = queryWeight, product of:
               3.474619 = boost
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.019043025 = queryNorm
             0.3159271 = fieldWeight in 690, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.4549602 = weight(abstract_txt:latent in 690) [ClassicSimilarity], result of:
           0.4549602 = score(doc=690,freq=3.0), product of:
             0.48056006 = queryWeight, product of:
               3.6069214 = boost
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.019043025 = queryNorm
             0.9467291 = fieldWeight in 690, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
         0.19832543 = weight(abstract_txt:semantic in 690) [ClassicSimilarity], result of:
           0.19832543 = score(doc=690,freq=3.0), product of:
             0.32756734 = queryWeight, product of:
               3.8444793 = boost
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.019043025 = queryNorm
             0.6054493 = fieldWeight in 690, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.078125 = fieldNorm(doc=690)
       0.48 = coord(12/25)
   

2. Bartell, B.T.; Cottrell, G.W.; Belew, R.K.: Representing documents using an explicit model of their similarities (1995) 0.66

   0.6639843 = sum of:
     0.6639843 = product of:
       1.6599607 = sum of:
         0.026505848 = weight(abstract_txt:based in 1426) [ClassicSimilarity], result of:
           0.026505848 = score(doc=1426,freq=1.0), product of:
             0.06651556 = queryWeight, product of:
               1.0956676 = boost
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.019043025 = queryNorm
             0.39849097 = fieldWeight in 1426, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.19644323 = weight(abstract_txt:vector in 1426) [ClassicSimilarity], result of:
           0.19644323 = score(doc=1426,freq=3.0), product of:
             0.13914567 = queryWeight, product of:
               1.120565 = boost
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.019043025 = queryNorm
             1.4117811 = fieldWeight in 1426, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.16383249 = weight(abstract_txt:similarities in 1426) [ClassicSimilarity], result of:
           0.16383249 = score(doc=1426,freq=2.0), product of:
             0.14112657 = queryWeight, product of:
               1.1285131 = boost
               6.5669885 = idf(docFreq=168, maxDocs=44218)
               0.019043025 = queryNorm
             1.1608905 = fieldWeight in 1426, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5669885 = idf(docFreq=168, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.10549789 = weight(abstract_txt:method in 1426) [ClassicSimilarity], result of:
           0.10549789 = score(doc=1426,freq=2.0), product of:
             0.13259117 = queryWeight, product of:
               1.5469437 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.019043025 = queryNorm
             0.795663 = fieldWeight in 1426, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.12828381 = weight(abstract_txt:space in 1426) [ClassicSimilarity], result of:
           0.12828381 = score(doc=1426,freq=1.0), product of:
             0.1903166 = queryWeight, product of:
               1.8533418 = boost
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.019043025 = queryNorm
             0.6740548 = fieldWeight in 1426, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.09706694 = weight(abstract_txt:document in 1426) [ClassicSimilarity], result of:
           0.09706694 = score(doc=1426,freq=1.0), product of:
             0.18090062 = queryWeight, product of:
               2.2130075 = boost
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.019043025 = queryNorm
             0.53657603 = fieldWeight in 1426, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.100983806 = weight(abstract_txt:indexing in 1426) [ClassicSimilarity], result of:
           0.100983806 = score(doc=1426,freq=1.0), product of:
             0.18573496 = queryWeight, product of:
               2.2423823 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.019043025 = queryNorm
             0.54369843 = fieldWeight in 1426, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.16198127 = weight(abstract_txt:documents in 1426) [ClassicSimilarity], result of:
           0.16198127 = score(doc=1426,freq=2.0), product of:
             0.22233368 = queryWeight, product of:
               2.8329234 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.019043025 = queryNorm
             0.72855026 = fieldWeight in 1426, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.42027423 = weight(abstract_txt:latent in 1426) [ClassicSimilarity], result of:
           0.42027423 = score(doc=1426,freq=1.0), product of:
             0.48056006 = queryWeight, product of:
               3.6069214 = boost
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.019043025 = queryNorm
             0.8745509 = fieldWeight in 1426, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
         0.25909126 = weight(abstract_txt:semantic in 1426) [ClassicSimilarity], result of:
           0.25909126 = score(doc=1426,freq=2.0), product of:
             0.32756734 = queryWeight, product of:
               3.8444793 = boost
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.019043025 = queryNorm
             0.7909557 = fieldWeight in 1426, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.125 = fieldNorm(doc=1426)
       0.4 = coord(10/25)
   

3. Lochbaum, K.E.; Streeter, A.R.: Comparing and combining the effectiveness of latent semantic indexing and the ordinary vector space model for information retrieval (1989) 0.57

   0.56681883 = sum of:
     0.56681883 = product of:
       1.1808726 = sum of:
         0.016566155 = weight(abstract_txt:based in 3458) [ClassicSimilarity], result of:
           0.016566155 = score(doc=3458,freq=1.0), product of:
             0.06651556 = queryWeight, product of:
               1.0956676 = boost
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.019043025 = queryNorm
             0.24905685 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.070885345 = weight(abstract_txt:vector in 3458) [ClassicSimilarity], result of:
           0.070885345 = score(doc=3458,freq=1.0), product of:
             0.13914567 = queryWeight, product of:
               1.120565 = boost
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.019043025 = queryNorm
             0.5094326 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.08062044 = weight(abstract_txt:dimensional in 3458) [ClassicSimilarity], result of:
           0.08062044 = score(doc=3458,freq=1.0), product of:
             0.15161034 = queryWeight, product of:
               1.1696788 = boost
               6.806538 = idf(docFreq=132, maxDocs=44218)
               0.019043025 = queryNorm
             0.5317608 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.806538 = idf(docFreq=132, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.010776283 = weight(abstract_txt:this in 3458) [ClassicSimilarity], result of:
           0.010776283 = score(doc=3458,freq=1.0), product of:
             0.05716346 = queryWeight, product of:
               1.2440048 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019043025 = queryNorm
             0.18851699 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.17912453 = weight(abstract_txt:decomposition in 3458) [ClassicSimilarity], result of:
           0.17912453 = score(doc=3458,freq=2.0), product of:
             0.20489222 = queryWeight, product of:
               1.3597684 = boost
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.019043025 = queryNorm
             0.8742379 = fieldWeight in 3458, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.14595662 = weight(abstract_txt:singular in 3458) [ClassicSimilarity], result of:
           0.14595662 = score(doc=3458,freq=1.0), product of:
             0.22520669 = queryWeight, product of:
               1.4255841 = boost
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.019043025 = queryNorm
             0.64810073 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.046623923 = weight(abstract_txt:method in 3458) [ClassicSimilarity], result of:
           0.046623923 = score(doc=3458,freq=1.0), product of:
             0.13259117 = queryWeight, product of:
               1.5469437 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.019043025 = queryNorm
             0.3516367 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.16035478 = weight(abstract_txt:space in 3458) [ClassicSimilarity], result of:
           0.16035478 = score(doc=3458,freq=4.0), product of:
             0.1903166 = queryWeight, product of:
               1.8533418 = boost
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.019043025 = queryNorm
             0.8425685 = fieldWeight in 3458, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.063114874 = weight(abstract_txt:indexing in 3458) [ClassicSimilarity], result of:
           0.063114874 = score(doc=3458,freq=1.0), product of:
             0.18573496 = queryWeight, product of:
               2.2423823 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.019043025 = queryNorm
             0.3398115 = fieldWeight in 3458, 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=3458)
         0.123991065 = weight(abstract_txt:documents in 3458) [ClassicSimilarity], result of:
           0.123991065 = score(doc=3458,freq=3.0), product of:
             0.22233368 = queryWeight, product of:
               2.8329234 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.019043025 = queryNorm
             0.5576801 = fieldWeight in 3458, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.084533095 = weight(abstract_txt:terms in 3458) [ClassicSimilarity], result of:
           0.084533095 = score(doc=3458,freq=1.0), product of:
             0.26757154 = queryWeight, product of:
               3.474619 = boost
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.019043025 = queryNorm
             0.3159271 = fieldWeight in 3458, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
         0.19832543 = weight(abstract_txt:semantic in 3458) [ClassicSimilarity], result of:
           0.19832543 = score(doc=3458,freq=3.0), product of:
             0.32756734 = queryWeight, product of:
               3.8444793 = boost
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.019043025 = queryNorm
             0.6054493 = fieldWeight in 3458, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.078125 = fieldNorm(doc=3458)
       0.48 = coord(12/25)
   

4. Berry, M.W.; Dumais, S.T.; O'Brien, G.W.: Using linear algebra for intelligent information retrieval (1995) 0.51

   0.50740093 = sum of:
     0.50740093 = product of:
       1.2685024 = sum of:
         0.010776283 = weight(abstract_txt:this in 2206) [ClassicSimilarity], result of:
           0.010776283 = score(doc=2206,freq=1.0), product of:
             0.05716346 = queryWeight, product of:
               1.2440048 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019043025 = queryNorm
             0.18851699 = fieldWeight in 2206, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.12666017 = weight(abstract_txt:decomposition in 2206) [ClassicSimilarity], result of:
           0.12666017 = score(doc=2206,freq=1.0), product of:
             0.20489222 = queryWeight, product of:
               1.3597684 = boost
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.019043025 = queryNorm
             0.6181795 = fieldWeight in 2206, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.20641384 = weight(abstract_txt:singular in 2206) [ClassicSimilarity], result of:
           0.20641384 = score(doc=2206,freq=2.0), product of:
             0.22520669 = queryWeight, product of:
               1.4255841 = boost
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.019043025 = queryNorm
             0.91655284 = fieldWeight in 2206, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.06593618 = weight(abstract_txt:method in 2206) [ClassicSimilarity], result of:
           0.06593618 = score(doc=2206,freq=2.0), product of:
             0.13259117 = queryWeight, product of:
               1.5469437 = boost
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.019043025 = queryNorm
             0.49728936 = fieldWeight in 2206, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.50095 = idf(docFreq=1333, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.085795864 = weight(abstract_txt:document in 2206) [ClassicSimilarity], result of:
           0.085795864 = score(doc=2206,freq=2.0), product of:
             0.18090062 = queryWeight, product of:
               2.2130075 = boost
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.019043025 = queryNorm
             0.4742707 = fieldWeight in 2206, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.08925792 = weight(abstract_txt:indexing in 2206) [ClassicSimilarity], result of:
           0.08925792 = score(doc=2206,freq=2.0), product of:
             0.18573496 = queryWeight, product of:
               2.2423823 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.019043025 = queryNorm
             0.48056605 = fieldWeight in 2206, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.1600718 = weight(abstract_txt:documents in 2206) [ClassicSimilarity], result of:
           0.1600718 = score(doc=2206,freq=5.0), product of:
             0.22233368 = queryWeight, product of:
               2.8329234 = boost
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.019043025 = queryNorm
             0.719962 = fieldWeight in 2206, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.1213026 = idf(docFreq=1949, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.14641562 = weight(abstract_txt:terms in 2206) [ClassicSimilarity], result of:
           0.14641562 = score(doc=2206,freq=3.0), product of:
             0.26757154 = queryWeight, product of:
               3.474619 = boost
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.019043025 = queryNorm
             0.54720175 = fieldWeight in 2206, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.0438666 = idf(docFreq=2106, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.2626714 = weight(abstract_txt:latent in 2206) [ClassicSimilarity], result of:
           0.2626714 = score(doc=2206,freq=1.0), product of:
             0.48056006 = queryWeight, product of:
               3.6069214 = boost
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.019043025 = queryNorm
             0.5465943 = fieldWeight in 2206, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
         0.11450324 = weight(abstract_txt:semantic in 2206) [ClassicSimilarity], result of:
           0.11450324 = score(doc=2206,freq=1.0), product of:
             0.32756734 = queryWeight, product of:
               3.8444793 = boost
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.019043025 = queryNorm
             0.34955636 = fieldWeight in 2206, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.078125 = fieldNorm(doc=2206)
       0.4 = coord(10/25)
   

5. Li, D.; Kwong, C.-P.; Lee, D.L.: Unified linear subspace approach to semantic analysis (2009) 0.50

   0.4955547 = sum of:
     0.4955547 = product of:
       1.2388867 = sum of:
         0.018742464 = weight(abstract_txt:based in 3321) [ClassicSimilarity], result of:
           0.018742464 = score(doc=3321,freq=2.0), product of:
             0.06651556 = queryWeight, product of:
               1.0956676 = boost
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.019043025 = queryNorm
             0.28177565 = fieldWeight in 3321, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.1879277 = idf(docFreq=4958, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.098221615 = weight(abstract_txt:vector in 3321) [ClassicSimilarity], result of:
           0.098221615 = score(doc=3321,freq=3.0), product of:
             0.13914567 = queryWeight, product of:
               1.120565 = boost
               6.5207376 = idf(docFreq=176, maxDocs=44218)
               0.019043025 = 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)
         0.014932055 = weight(abstract_txt:this in 3321) [ClassicSimilarity], result of:
           0.014932055 = score(doc=3321,freq=3.0), product of:
             0.05716346 = queryWeight, product of:
               1.2440048 = boost
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.019043025 = queryNorm
             0.2612168 = fieldWeight in 3321, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               2.4130175 = idf(docFreq=10762, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.101328135 = weight(abstract_txt:decomposition in 3321) [ClassicSimilarity], result of:
           0.101328135 = score(doc=3321,freq=1.0), product of:
             0.20489222 = queryWeight, product of:
               1.3597684 = boost
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.019043025 = queryNorm
             0.4945436 = fieldWeight in 3321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.912698 = idf(docFreq=43, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.1167653 = weight(abstract_txt:singular in 3321) [ClassicSimilarity], result of:
           0.1167653 = score(doc=3321,freq=1.0), product of:
             0.22520669 = queryWeight, product of:
               1.4255841 = boost
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.019043025 = queryNorm
             0.5184806 = fieldWeight in 3321, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.29569 = idf(docFreq=29, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.18142071 = weight(abstract_txt:space in 3321) [ClassicSimilarity], result of:
           0.18142071 = score(doc=3321,freq=8.0), product of:
             0.1903166 = queryWeight, product of:
               1.8533418 = boost
               5.3924384 = idf(docFreq=546, maxDocs=44218)
               0.019043025 = 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)
         0.06863669 = weight(abstract_txt:document in 3321) [ClassicSimilarity], result of:
           0.06863669 = score(doc=3321,freq=2.0), product of:
             0.18090062 = queryWeight, product of:
               2.2130075 = boost
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.019043025 = queryNorm
             0.37941656 = fieldWeight in 3321, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.2926083 = idf(docFreq=1642, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.050491903 = weight(abstract_txt:indexing in 3321) [ClassicSimilarity], result of:
           0.050491903 = score(doc=3321,freq=1.0), product of:
             0.18573496 = queryWeight, product of:
               2.2423823 = boost
               4.3495874 = idf(docFreq=1551, maxDocs=44218)
               0.019043025 = 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)
         0.36396816 = weight(abstract_txt:latent in 3321) [ClassicSimilarity], result of:
           0.36396816 = score(doc=3321,freq=3.0), product of:
             0.48056006 = queryWeight, product of:
               3.6069214 = boost
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.019043025 = queryNorm
             0.7573833 = fieldWeight in 3321, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               6.996407 = idf(docFreq=109, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
         0.22437963 = weight(abstract_txt:semantic in 3321) [ClassicSimilarity], result of:
           0.22437963 = score(doc=3321,freq=6.0), product of:
             0.32756734 = queryWeight, product of:
               3.8444793 = boost
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.019043025 = queryNorm
             0.6849878 = fieldWeight in 3321, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.4743214 = idf(docFreq=1369, maxDocs=44218)
               0.0625 = fieldNorm(doc=3321)
       0.4 = coord(10/25)