Document (#36559)

Author

Golub, K.

Title

Automated subject classification of textual documents in the context of Web-based hierarchical browsing

Source

Knowledge organization. 38(2011) no.3, S.230-244

Year

2011

Abstract

While automated methods for information organization have been around for several decades now, exponential growth of the World Wide Web has put them into the forefront of research in different communities, within which several approaches can be identified: 1) machine learning (algorithms that allow computers to improve their performance based on learning from pre-existing data); 2) document clustering (algorithms for unsupervised document organization and automated topic extraction); and 3) string matching (algorithms that match given strings within larger text). Here the aim was to automatically organize textual documents into hierarchical structures for subject browsing. The string-matching approach was tested using a controlled vocabulary (containing pre-selected and pre-defined authorized terms, each corresponding to only one concept). The results imply that an appropriate controlled vocabulary, with a sufficient number of entry terms designating classes, could in itself be a solution for automated classification. Then, if the same controlled vocabulary had an appropriat hierarchical structure, it would at the same time provide a good browsing structure for the collection of automatically classified documents.

Content

Vgl.: http://www.ergon-verlag.de/isko_ko/downloads/ko_38_2011_3_d.pdf.

Theme

Automatisches Klassifizieren

Similar documents (author)

1. Golub, K.: Automated subject classification of textual web documents (2006) 5.28

   5.277107 = sum of:
     5.277107 = weight(author_txt:golub in 600) [ClassicSimilarity], result of:
       5.277107 = fieldWeight in 600, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.443371 = idf(docFreq=25, maxDocs=44421)
         0.625 = fieldNorm(doc=600)
   

2. Golub, K.: Automated subject classification of textual Web pages, based on a controlled vocabulary : challenges and recommendations (2006) 5.28

   5.277107 = sum of:
     5.277107 = weight(author_txt:golub in 897) [ClassicSimilarity], result of:
       5.277107 = fieldWeight in 897, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.443371 = idf(docFreq=25, maxDocs=44421)
         0.625 = fieldNorm(doc=897)
   

3. Golub, K.: Subject access to information : an interdisciplinary approach (2015) 5.28

   5.277107 = sum of:
     5.277107 = weight(author_txt:golub in 1134) [ClassicSimilarity], result of:
       5.277107 = fieldWeight in 1134, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.443371 = idf(docFreq=25, maxDocs=44421)
         0.625 = fieldNorm(doc=1134)
   

4. Golub, K.: Subject access in Swedish discovery services (2018) 5.28

   5.277107 = sum of:
     5.277107 = weight(author_txt:golub in 379) [ClassicSimilarity], result of:
       5.277107 = fieldWeight in 379, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.443371 = idf(docFreq=25, maxDocs=44421)
         0.625 = fieldNorm(doc=379)
   

5. Golub, K.: Automatic subject indexing of text (2019) 5.28

   5.277107 = sum of:
     5.277107 = weight(author_txt:golub in 268) [ClassicSimilarity], result of:
       5.277107 = fieldWeight in 268, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.443371 = idf(docFreq=25, maxDocs=44421)
         0.625 = fieldNorm(doc=268)
   

Similar documents (content)

1. Golub, K.; Hamon, T.; Ardö, A.: Automated classification of textual documents based on a controlled vocabulary in engineering (2007) 0.66

   0.6631168 = sum of:
     0.6631168 = product of:
       1.2752247 = sum of:
         0.021779826 = weight(abstract_txt:subject in 2461) [ClassicSimilarity], result of:
           0.021779826 = score(doc=2461,freq=1.0), product of:
             0.089125864 = queryWeight, product of:
               1.0039085 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022705914 = queryNorm
             0.24437155 = fieldWeight in 2461, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.040153813 = weight(abstract_txt:classification in 2461) [ClassicSimilarity], result of:
           0.040153813 = score(doc=2461,freq=3.0), product of:
             0.09291338 = queryWeight, product of:
               1.0250177 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022705914 = queryNorm
             0.43216392 = fieldWeight in 2461, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.053872634 = weight(abstract_txt:terms in 2461) [ClassicSimilarity], result of:
           0.053872634 = score(doc=2461,freq=5.0), product of:
             0.09532855 = queryWeight, product of:
               1.0382543 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.022705914 = queryNorm
             0.56512594 = fieldWeight in 2461, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.034286495 = weight(abstract_txt:several in 2461) [ClassicSimilarity], result of:
           0.034286495 = score(doc=2461,freq=1.0), product of:
             0.12060988 = queryWeight, product of:
               1.167841 = boost
               4.548416 = idf(docFreq=1277, maxDocs=44421)
               0.022705914 = queryNorm
             0.284276 = fieldWeight in 2461, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.548416 = idf(docFreq=1277, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.054949176 = weight(abstract_txt:learning in 2461) [ClassicSimilarity], result of:
           0.054949176 = score(doc=2461,freq=2.0), product of:
             0.13109867 = queryWeight, product of:
               1.2175629 = boost
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.022705914 = queryNorm
             0.41914365 = fieldWeight in 2461, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.06133413 = weight(abstract_txt:automatically in 2461) [ClassicSimilarity], result of:
           0.06133413 = score(doc=2461,freq=1.0), product of:
             0.17773336 = queryWeight, product of:
               1.4176751 = boost
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.022705914 = queryNorm
             0.3450907 = fieldWeight in 2461, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.113657095 = weight(abstract_txt:matching in 2461) [ClassicSimilarity], result of:
           0.113657095 = score(doc=2461,freq=2.0), product of:
             0.21282461 = queryWeight, product of:
               1.5513264 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022705914 = queryNorm
             0.5340411 = fieldWeight in 2461, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.07663119 = weight(abstract_txt:documents in 2461) [ClassicSimilarity], result of:
           0.07663119 = score(doc=2461,freq=4.0), product of:
             0.14867854 = queryWeight, product of:
               1.5880423 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.022705914 = queryNorm
             0.51541525 = fieldWeight in 2461, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.1907096 = weight(abstract_txt:string in 2461) [ClassicSimilarity], result of:
           0.1907096 = score(doc=2461,freq=2.0), product of:
             0.30051944 = queryWeight, product of:
               1.843438 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.022705914 = queryNorm
             0.6345999 = fieldWeight in 2461, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.16843311 = weight(abstract_txt:vocabulary in 2461) [ClassicSimilarity], result of:
           0.16843311 = score(doc=2461,freq=4.0), product of:
             0.25134075 = queryWeight, product of:
               2.0647588 = boost
               5.3611083 = idf(docFreq=566, maxDocs=44421)
               0.022705914 = queryNorm
             0.67013854 = fieldWeight in 2461, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.3611083 = idf(docFreq=566, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.1770965 = weight(abstract_txt:controlled in 2461) [ClassicSimilarity], result of:
           0.1770965 = score(doc=2461,freq=4.0), product of:
             0.259887 = queryWeight, product of:
               2.099569 = boost
               5.4514923 = idf(docFreq=517, maxDocs=44421)
               0.022705914 = queryNorm
             0.68143654 = fieldWeight in 2461, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.4514923 = idf(docFreq=517, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.10122096 = weight(abstract_txt:algorithms in 2461) [ClassicSimilarity], result of:
           0.10122096 = score(doc=2461,freq=1.0), product of:
             0.28412637 = queryWeight, product of:
               2.195299 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022705914 = queryNorm
             0.3562533 = fieldWeight in 2461, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
         0.18110014 = weight(abstract_txt:automated in 2461) [ClassicSimilarity], result of:
           0.18110014 = score(doc=2461,freq=2.0), product of:
             0.36580253 = queryWeight, product of:
               2.8762763 = boost
               5.6011486 = idf(docFreq=445, maxDocs=44421)
               0.022705914 = queryNorm
             0.49507627 = fieldWeight in 2461, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6011486 = idf(docFreq=445, maxDocs=44421)
               0.0625 = fieldNorm(doc=2461)
       0.52 = coord(13/25)
   

2. Golub, K.: Automatic subject indexing of text (2019) 0.35

   0.34592202 = sum of:
     0.34592202 = product of:
       0.7206709 = sum of:
         0.048701175 = weight(abstract_txt:subject in 268) [ClassicSimilarity], result of:
           0.048701175 = score(doc=268,freq=5.0), product of:
             0.089125864 = queryWeight, product of:
               1.0039085 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022705914 = queryNorm
             0.5464314 = fieldWeight in 268, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.040153813 = weight(abstract_txt:classification in 268) [ClassicSimilarity], result of:
           0.040153813 = score(doc=268,freq=3.0), product of:
             0.09291338 = queryWeight, product of:
               1.0250177 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022705914 = queryNorm
             0.43216392 = fieldWeight in 268, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.04818515 = weight(abstract_txt:terms in 268) [ClassicSimilarity], result of:
           0.04818515 = score(doc=268,freq=4.0), product of:
             0.09532855 = queryWeight, product of:
               1.0382543 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.022705914 = queryNorm
             0.505464 = fieldWeight in 268, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.057703763 = weight(abstract_txt:document in 268) [ClassicSimilarity], result of:
           0.057703763 = score(doc=268,freq=4.0), product of:
             0.107502095 = queryWeight, product of:
               1.1025561 = boost
               4.29415 = idf(docFreq=1647, maxDocs=44421)
               0.022705914 = queryNorm
             0.53676873 = fieldWeight in 268, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.29415 = idf(docFreq=1647, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.0321267 = weight(abstract_txt:organization in 268) [ClassicSimilarity], result of:
           0.0321267 = score(doc=268,freq=1.0), product of:
             0.11549013 = queryWeight, product of:
               1.1427854 = boost
               4.450832 = idf(docFreq=1408, maxDocs=44421)
               0.022705914 = queryNorm
             0.278177 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.450832 = idf(docFreq=1408, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.038854938 = weight(abstract_txt:learning in 268) [ClassicSimilarity], result of:
           0.038854938 = score(doc=268,freq=1.0), product of:
             0.13109867 = queryWeight, product of:
               1.2175629 = boost
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.022705914 = queryNorm
             0.29637933 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.038854938 = weight(abstract_txt:same in 268) [ClassicSimilarity], result of:
           0.038854938 = score(doc=268,freq=1.0), product of:
             0.13109867 = queryWeight, product of:
               1.2175629 = boost
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.022705914 = queryNorm
             0.29637933 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.06133413 = weight(abstract_txt:automatically in 268) [ClassicSimilarity], result of:
           0.06133413 = score(doc=268,freq=1.0), product of:
             0.17773336 = queryWeight, product of:
               1.4176751 = boost
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.022705914 = queryNorm
             0.3450907 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.0803677 = weight(abstract_txt:matching in 268) [ClassicSimilarity], result of:
           0.0803677 = score(doc=268,freq=1.0), product of:
             0.21282461 = queryWeight, product of:
               1.5513264 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022705914 = queryNorm
             0.3776241 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.038315594 = weight(abstract_txt:documents in 268) [ClassicSimilarity], result of:
           0.038315594 = score(doc=268,freq=1.0), product of:
             0.14867854 = queryWeight, product of:
               1.5880423 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.022705914 = queryNorm
             0.25770763 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
         0.13485207 = weight(abstract_txt:string in 268) [ClassicSimilarity], result of:
           0.13485207 = score(doc=268,freq=1.0), product of:
             0.30051944 = queryWeight, product of:
               1.843438 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.022705914 = queryNorm
             0.44872993 = fieldWeight in 268, 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=268)
         0.10122096 = weight(abstract_txt:algorithms in 268) [ClassicSimilarity], result of:
           0.10122096 = score(doc=268,freq=1.0), product of:
             0.28412637 = queryWeight, product of:
               2.195299 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022705914 = queryNorm
             0.3562533 = fieldWeight in 268, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.0625 = fieldNorm(doc=268)
       0.48 = coord(12/25)
   

3. Golub, K.: Automated subject classification of textual Web pages, based on a controlled vocabulary : challenges and recommendations (2006) 0.34

   0.33750826 = sum of:
     0.33750826 = product of:
       0.93752295 = sum of:
         0.027224783 = weight(abstract_txt:subject in 897) [ClassicSimilarity], result of:
           0.027224783 = score(doc=897,freq=1.0), product of:
             0.089125864 = queryWeight, product of:
               1.0039085 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022705914 = queryNorm
             0.30546445 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.050192263 = weight(abstract_txt:classification in 897) [ClassicSimilarity], result of:
           0.050192263 = score(doc=897,freq=3.0), product of:
             0.09291338 = queryWeight, product of:
               1.0250177 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022705914 = queryNorm
             0.5402049 = fieldWeight in 897, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.04856867 = weight(abstract_txt:same in 897) [ClassicSimilarity], result of:
           0.04856867 = score(doc=897,freq=1.0), product of:
             0.13109867 = queryWeight, product of:
               1.2175629 = boost
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.022705914 = queryNorm
             0.37047416 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.09666316 = weight(abstract_txt:textual in 897) [ClassicSimilarity], result of:
           0.09666316 = score(doc=897,freq=1.0), product of:
             0.20742837 = queryWeight, product of:
               1.5315329 = boost
               5.9648952 = idf(docFreq=309, maxDocs=44421)
               0.022705914 = queryNorm
             0.46600744 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9648952 = idf(docFreq=309, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.10045962 = weight(abstract_txt:matching in 897) [ClassicSimilarity], result of:
           0.10045962 = score(doc=897,freq=1.0), product of:
             0.21282461 = queryWeight, product of:
               1.5513264 = boost
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.022705914 = queryNorm
             0.4720301 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0419855 = idf(docFreq=286, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.23838702 = weight(abstract_txt:string in 897) [ClassicSimilarity], result of:
           0.23838702 = score(doc=897,freq=2.0), product of:
             0.30051944 = queryWeight, product of:
               1.843438 = boost
               7.179679 = idf(docFreq=91, maxDocs=44421)
               0.022705914 = queryNorm
             0.7932499 = fieldWeight in 897, 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=897)
         0.1052707 = weight(abstract_txt:vocabulary in 897) [ClassicSimilarity], result of:
           0.1052707 = score(doc=897,freq=1.0), product of:
             0.25134075 = queryWeight, product of:
               2.0647588 = boost
               5.3611083 = idf(docFreq=566, maxDocs=44421)
               0.022705914 = queryNorm
             0.4188366 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3611083 = idf(docFreq=566, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.11068532 = weight(abstract_txt:controlled in 897) [ClassicSimilarity], result of:
           0.11068532 = score(doc=897,freq=1.0), product of:
             0.259887 = queryWeight, product of:
               2.099569 = boost
               5.4514923 = idf(docFreq=517, maxDocs=44421)
               0.022705914 = queryNorm
             0.42589784 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4514923 = idf(docFreq=517, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
         0.16007143 = weight(abstract_txt:automated in 897) [ClassicSimilarity], result of:
           0.16007143 = score(doc=897,freq=1.0), product of:
             0.36580253 = queryWeight, product of:
               2.8762763 = boost
               5.6011486 = idf(docFreq=445, maxDocs=44421)
               0.022705914 = queryNorm
             0.43758973 = fieldWeight in 897, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6011486 = idf(docFreq=445, maxDocs=44421)
               0.078125 = fieldNorm(doc=897)
       0.36 = coord(9/25)
   

4. Golub, K.; Lykke, M.: Automated classification of web pages in hierarchical browsing (2009) 0.27

   0.27475432 = sum of:
     0.27475432 = product of:
       0.7632064 = sum of:
         0.019057347 = weight(abstract_txt:subject in 601) [ClassicSimilarity], result of:
           0.019057347 = score(doc=601,freq=1.0), product of:
             0.089125864 = queryWeight, product of:
               1.0039085 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022705914 = queryNorm
             0.2138251 = fieldWeight in 601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.06727761 = weight(abstract_txt:classification in 601) [ClassicSimilarity], result of:
           0.06727761 = score(doc=601,freq=11.0), product of:
             0.09291338 = queryWeight, product of:
               1.0250177 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022705914 = queryNorm
             0.72408956 = fieldWeight in 601, product of:
               3.3166249 = tf(freq=11.0), with freq of:
                 11.0 = termFreq=11.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.021081002 = weight(abstract_txt:terms in 601) [ClassicSimilarity], result of:
           0.021081002 = score(doc=601,freq=1.0), product of:
             0.09532855 = queryWeight, product of:
               1.0382543 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.022705914 = queryNorm
             0.2211405 = fieldWeight in 601, 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=601)
         0.03399807 = weight(abstract_txt:same in 601) [ClassicSimilarity], result of:
           0.03399807 = score(doc=601,freq=1.0), product of:
             0.13109867 = queryWeight, product of:
               1.2175629 = boost
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.022705914 = queryNorm
             0.2593319 = fieldWeight in 601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.7420692 = idf(docFreq=1052, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.07589711 = weight(abstract_txt:automatically in 601) [ClassicSimilarity], result of:
           0.07589711 = score(doc=601,freq=2.0), product of:
             0.17773336 = queryWeight, product of:
               1.4176751 = boost
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.022705914 = queryNorm
             0.42702794 = fieldWeight in 601, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.07747972 = weight(abstract_txt:controlled in 601) [ClassicSimilarity], result of:
           0.07747972 = score(doc=601,freq=1.0), product of:
             0.259887 = queryWeight, product of:
               2.099569 = boost
               5.4514923 = idf(docFreq=517, maxDocs=44421)
               0.022705914 = queryNorm
             0.2981285 = fieldWeight in 601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4514923 = idf(docFreq=517, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.21997161 = weight(abstract_txt:browsing in 601) [ClassicSimilarity], result of:
           0.21997161 = score(doc=601,freq=7.0), product of:
             0.27239823 = queryWeight, product of:
               2.1495128 = boost
               5.58117 = idf(docFreq=454, maxDocs=44421)
               0.022705914 = queryNorm
             0.80753684 = fieldWeight in 601, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               5.58117 = idf(docFreq=454, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.08998133 = weight(abstract_txt:hierarchical in 601) [ClassicSimilarity], result of:
           0.08998133 = score(doc=601,freq=1.0), product of:
             0.2871403 = queryWeight, product of:
               2.2069118 = boost
               5.7302055 = idf(docFreq=391, maxDocs=44421)
               0.022705914 = queryNorm
             0.31337062 = fieldWeight in 601, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7302055 = idf(docFreq=391, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
         0.15846263 = weight(abstract_txt:automated in 601) [ClassicSimilarity], result of:
           0.15846263 = score(doc=601,freq=2.0), product of:
             0.36580253 = queryWeight, product of:
               2.8762763 = boost
               5.6011486 = idf(docFreq=445, maxDocs=44421)
               0.022705914 = queryNorm
             0.43319175 = fieldWeight in 601, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6011486 = idf(docFreq=445, maxDocs=44421)
               0.0546875 = fieldNorm(doc=601)
       0.36 = coord(9/25)
   

5. Chen, H.; Houston, A.L.; Sewell, R.R.; Schatz, B.R.: Internet browsing and searching : user evaluations of category map and concept space techniques (1998) 0.23

   0.23348136 = sum of:
     0.23348136 = product of:
       0.64855933 = sum of:
         0.03652588 = weight(abstract_txt:subject in 1869) [ClassicSimilarity], result of:
           0.03652588 = score(doc=1869,freq=5.0), product of:
             0.089125864 = queryWeight, product of:
               1.0039085 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022705914 = queryNorm
             0.40982357 = fieldWeight in 1869, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.04780722 = weight(abstract_txt:terms in 1869) [ClassicSimilarity], result of:
           0.04780722 = score(doc=1869,freq=7.0), product of:
             0.09532855 = queryWeight, product of:
               1.0382543 = boost
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.022705914 = queryNorm
             0.50149953 = fieldWeight in 1869, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               4.043712 = idf(docFreq=2116, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.024095023 = weight(abstract_txt:organization in 1869) [ClassicSimilarity], result of:
           0.024095023 = score(doc=1869,freq=1.0), product of:
             0.11549013 = queryWeight, product of:
               1.1427854 = boost
               4.450832 = idf(docFreq=1408, maxDocs=44421)
               0.022705914 = queryNorm
             0.20863274 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.450832 = idf(docFreq=1408, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.06505467 = weight(abstract_txt:automatically in 1869) [ClassicSimilarity], result of:
           0.06505467 = score(doc=1869,freq=2.0), product of:
             0.17773336 = queryWeight, product of:
               1.4176751 = boost
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.022705914 = queryNorm
             0.36602396 = fieldWeight in 1869, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.521451 = idf(docFreq=482, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.028736696 = weight(abstract_txt:documents in 1869) [ClassicSimilarity], result of:
           0.028736696 = score(doc=1869,freq=1.0), product of:
             0.14867854 = queryWeight, product of:
               1.5880423 = boost
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.022705914 = queryNorm
             0.19328073 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.123322 = idf(docFreq=1954, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.063162416 = weight(abstract_txt:vocabulary in 1869) [ClassicSimilarity], result of:
           0.063162416 = score(doc=1869,freq=1.0), product of:
             0.25134075 = queryWeight, product of:
               2.0647588 = boost
               5.3611083 = idf(docFreq=566, maxDocs=44421)
               0.022705914 = queryNorm
             0.25130194 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3611083 = idf(docFreq=566, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.1745607 = weight(abstract_txt:browsing in 1869) [ClassicSimilarity], result of:
           0.1745607 = score(doc=1869,freq=6.0), product of:
             0.27239823 = queryWeight, product of:
               2.1495128 = boost
               5.58117 = idf(docFreq=454, maxDocs=44421)
               0.022705914 = queryNorm
             0.640829 = fieldWeight in 1869, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.58117 = idf(docFreq=454, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.13148989 = weight(abstract_txt:algorithms in 1869) [ClassicSimilarity], result of:
           0.13148989 = score(doc=1869,freq=3.0), product of:
             0.28412637 = queryWeight, product of:
               2.195299 = boost
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.022705914 = queryNorm
             0.4627866 = fieldWeight in 1869, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.7000527 = idf(docFreq=403, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
         0.07712686 = weight(abstract_txt:hierarchical in 1869) [ClassicSimilarity], result of:
           0.07712686 = score(doc=1869,freq=1.0), product of:
             0.2871403 = queryWeight, product of:
               2.2069118 = boost
               5.7302055 = idf(docFreq=391, maxDocs=44421)
               0.022705914 = queryNorm
             0.26860338 = fieldWeight in 1869, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7302055 = idf(docFreq=391, maxDocs=44421)
               0.046875 = fieldNorm(doc=1869)
       0.36 = coord(9/25)