Document (#35870)

Author

Mann, T.

Title

Reference and informational genres

Source

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

Imprint

London : Taylor & Francis

Year

2009

Pages

S.xx-xx

Abstract

In order to reduce the problems of information overload, librarians and indexers have created systems of categorization that allow large numbers of individual books or articles to be perceived initially through smaller numbers of categories of literature. These categories can be either subject or format groupings. Format designations are particularly useful in segregating reference works from larger collections or retrievals. The distinctive nature, and the purposes and uses of reference works ("tertiary literature" composed of 60% or more of files or lists, as opposed to "primary" or "secondary" literature) are discussed. The mechanisms for finding such works via Library of Congress Subject Headings, or via the peculiarities of their shelving in either the Library of Congress Classification or the Dewey Decimal Classification, are explained. "Publication types" and "document type" searches within databases covering formats other than books are also treated.

Footnote

Vgl.: http://www.tandfonline.com/doi/book/10.1081/E-ELIS3.

Similar documents (author)

1. Mann, G.: ¬Der Systematische Katalog in Institutionsbibliotheken am Beispiel der Medizinhistorik (1962) 5.62

   5.620886 = sum of:
     5.620886 = weight(author_txt:mann in 3063) [ClassicSimilarity], result of:
       5.620886 = fieldWeight in 3063, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.993418 = idf(docFreq=14, maxDocs=44421)
         0.625 = fieldNorm(doc=3063)
   

2. Mann, M.: Introduction to cataloging and the classification of books (1943) 5.62

   5.620886 = sum of:
     5.620886 = weight(author_txt:mann in 3524) [ClassicSimilarity], result of:
       5.620886 = fieldWeight in 3524, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.993418 = idf(docFreq=14, maxDocs=44421)
         0.625 = fieldNorm(doc=3524)
   

3. Mann, T.: Library research methods : a guide to classification, cataloging and computers (1993) 5.62

   5.620886 = sum of:
     5.620886 = weight(author_txt:mann in 868) [ClassicSimilarity], result of:
       5.620886 = fieldWeight in 868, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.993418 = idf(docFreq=14, maxDocs=44421)
         0.625 = fieldNorm(doc=868)
   

4. Mann, T.: 'Cataloging must change!' and indexer consistency studies : misreading the evidence at our peril (1997) 5.62

   5.620886 = sum of:
     5.620886 = weight(author_txt:mann in 492) [ClassicSimilarity], result of:
       5.620886 = fieldWeight in 492, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.993418 = idf(docFreq=14, maxDocs=44421)
         0.625 = fieldNorm(doc=492)
   

5. Mann, T.: Library research models : a guide to classification, cataloging, and computers (1993) 5.62

   5.620886 = sum of:
     5.620886 = weight(author_txt:mann in 1662) [ClassicSimilarity], result of:
       5.620886 = fieldWeight in 1662, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         8.993418 = idf(docFreq=14, maxDocs=44421)
         0.625 = fieldNorm(doc=1662)
   

Similar documents (content)

1. Mowery, R.L.: Women in literature : a study of Library of Congress subject cataloging (1989) 0.23

   0.2273005 = sum of:
     0.2273005 = product of:
       0.8117875 = sum of:
         0.061432928 = weight(abstract_txt:subject in 548) [ClassicSimilarity], result of:
           0.061432928 = score(doc=548,freq=4.0), product of:
             0.10055659 = queryWeight, product of:
               1.1255077 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022850275 = queryNorm
             0.6109289 = fieldWeight in 548, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
         0.14617513 = weight(abstract_txt:books in 548) [ClassicSimilarity], result of:
           0.14617513 = score(doc=548,freq=4.0), product of:
             0.17922232 = queryWeight, product of:
               1.5025856 = boost
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.022850275 = queryNorm
             0.8156079 = fieldWeight in 548, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
         0.08103041 = weight(abstract_txt:congress in 548) [ClassicSimilarity], result of:
           0.08103041 = score(doc=548,freq=1.0), product of:
             0.19198255 = queryWeight, product of:
               1.5551565 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.022850275 = queryNorm
             0.42207175 = fieldWeight in 548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
         0.089762464 = weight(abstract_txt:either in 548) [ClassicSimilarity], result of:
           0.089762464 = score(doc=548,freq=1.0), product of:
             0.20553838 = queryWeight, product of:
               1.6091245 = boost
               5.59 = idf(docFreq=450, maxDocs=44421)
               0.022850275 = queryNorm
             0.43671876 = fieldWeight in 548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.59 = idf(docFreq=450, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
         0.20940462 = weight(abstract_txt:numbers in 548) [ClassicSimilarity], result of:
           0.20940462 = score(doc=548,freq=4.0), product of:
             0.22775464 = queryWeight, product of:
               1.6938573 = boost
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.022850275 = queryNorm
             0.91943073 = fieldWeight in 548, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
         0.11396299 = weight(abstract_txt:literature in 548) [ClassicSimilarity], result of:
           0.11396299 = score(doc=548,freq=3.0), product of:
             0.1912768 = queryWeight, product of:
               1.9011657 = boost
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.022850275 = queryNorm
             0.5958014 = fieldWeight in 548, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
         0.11001897 = weight(abstract_txt:works in 548) [ClassicSimilarity], result of:
           0.11001897 = score(doc=548,freq=1.0), product of:
             0.26946676 = queryWeight, product of:
               2.2565317 = boost
               5.226035 = idf(docFreq=648, maxDocs=44421)
               0.022850275 = queryNorm
             0.408284 = fieldWeight in 548, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.226035 = idf(docFreq=648, maxDocs=44421)
               0.078125 = fieldNorm(doc=548)
       0.28 = coord(7/25)
   

2. Mowery, R.L.: Subject cataloging of Chicano literature (1995) 0.20

   0.1990052 = sum of:
     0.1990052 = product of:
       0.82918835 = sum of:
         0.06384297 = weight(abstract_txt:subject in 3796) [ClassicSimilarity], result of:
           0.06384297 = score(doc=3796,freq=3.0), product of:
             0.10055659 = queryWeight, product of:
               1.1255077 = boost
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.022850275 = queryNorm
             0.6348959 = fieldWeight in 3796, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.9099448 = idf(docFreq=2419, maxDocs=44421)
               0.09375 = fieldNorm(doc=3796)
         0.05548546 = weight(abstract_txt:classification in 3796) [ClassicSimilarity], result of:
           0.05548546 = score(doc=3796,freq=2.0), product of:
             0.10482987 = queryWeight, product of:
               1.1491739 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022850275 = queryNorm
             0.52929056 = fieldWeight in 3796, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.09375 = fieldNorm(doc=3796)
         0.15190966 = weight(abstract_txt:books in 3796) [ClassicSimilarity], result of:
           0.15190966 = score(doc=3796,freq=3.0), product of:
             0.17922232 = queryWeight, product of:
               1.5025856 = boost
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.022850275 = queryNorm
             0.84760463 = fieldWeight in 3796, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.09375 = fieldNorm(doc=3796)
         0.21761964 = weight(abstract_txt:numbers in 3796) [ClassicSimilarity], result of:
           0.21761964 = score(doc=3796,freq=3.0), product of:
             0.22775464 = queryWeight, product of:
               1.6938573 = boost
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.022850275 = queryNorm
             0.95550036 = fieldWeight in 3796, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.09375 = fieldNorm(doc=3796)
         0.11166047 = weight(abstract_txt:literature in 3796) [ClassicSimilarity], result of:
           0.11166047 = score(doc=3796,freq=2.0), product of:
             0.1912768 = queryWeight, product of:
               1.9011657 = boost
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.022850275 = queryNorm
             0.5837638 = fieldWeight in 3796, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4030223 = idf(docFreq=1477, maxDocs=44421)
               0.09375 = fieldNorm(doc=3796)
         0.2286701 = weight(abstract_txt:works in 3796) [ClassicSimilarity], result of:
           0.2286701 = score(doc=3796,freq=3.0), product of:
             0.26946676 = queryWeight, product of:
               2.2565317 = boost
               5.226035 = idf(docFreq=648, maxDocs=44421)
               0.022850275 = queryNorm
             0.8486023 = fieldWeight in 3796, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.226035 = idf(docFreq=648, maxDocs=44421)
               0.09375 = fieldNorm(doc=3796)
       0.24 = coord(6/25)
   

3. Zhao, L.: Save space for "newcomers" : analyzing problems in book number assignment under the LCC system (2004) 0.16

   0.16052376 = sum of:
     0.16052376 = product of:
       0.668849 = sum of:
         0.03269512 = weight(abstract_txt:classification in 4081) [ClassicSimilarity], result of:
           0.03269512 = score(doc=4081,freq=1.0), product of:
             0.10482987 = queryWeight, product of:
               1.1491739 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022850275 = queryNorm
             0.31188744 = fieldWeight in 4081, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.078125 = fieldNorm(doc=4081)
         0.152595 = weight(abstract_txt:shelving in 4081) [ClassicSimilarity], result of:
           0.152595 = score(doc=4081,freq=1.0), product of:
             0.23236993 = queryWeight, product of:
               1.2098128 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.022850275 = queryNorm
             0.65668994 = fieldWeight in 4081, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.078125 = fieldNorm(doc=4081)
         0.103361435 = weight(abstract_txt:books in 4081) [ClassicSimilarity], result of:
           0.103361435 = score(doc=4081,freq=2.0), product of:
             0.17922232 = queryWeight, product of:
               1.5025856 = boost
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.022850275 = queryNorm
             0.5767219 = fieldWeight in 4081, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.078125 = fieldNorm(doc=4081)
         0.08103041 = weight(abstract_txt:congress in 4081) [ClassicSimilarity], result of:
           0.08103041 = score(doc=4081,freq=1.0), product of:
             0.19198255 = queryWeight, product of:
               1.5551565 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.022850275 = queryNorm
             0.42207175 = fieldWeight in 4081, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.078125 = fieldNorm(doc=4081)
         0.089762464 = weight(abstract_txt:either in 4081) [ClassicSimilarity], result of:
           0.089762464 = score(doc=4081,freq=1.0), product of:
             0.20553838 = queryWeight, product of:
               1.6091245 = boost
               5.59 = idf(docFreq=450, maxDocs=44421)
               0.022850275 = queryNorm
             0.43671876 = fieldWeight in 4081, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.59 = idf(docFreq=450, maxDocs=44421)
               0.078125 = fieldNorm(doc=4081)
         0.20940462 = weight(abstract_txt:numbers in 4081) [ClassicSimilarity], result of:
           0.20940462 = score(doc=4081,freq=4.0), product of:
             0.22775464 = queryWeight, product of:
               1.6938573 = boost
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.022850275 = queryNorm
             0.91943073 = fieldWeight in 4081, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.078125 = fieldNorm(doc=4081)
       0.24 = coord(6/25)
   

4. Crumb, L.N.: ¬The classification of biographical dictionaries in reference collections using the Library of Congress Classification System (1983) 0.12

   0.11913735 = sum of:
     0.11913735 = product of:
       0.59568673 = sum of:
         0.04577317 = weight(abstract_txt:classification in 423) [ClassicSimilarity], result of:
           0.04577317 = score(doc=423,freq=1.0), product of:
             0.10482987 = queryWeight, product of:
               1.1491739 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022850275 = queryNorm
             0.43664244 = fieldWeight in 423, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.109375 = fieldNorm(doc=423)
         0.11344257 = weight(abstract_txt:congress in 423) [ClassicSimilarity], result of:
           0.11344257 = score(doc=423,freq=1.0), product of:
             0.19198255 = queryWeight, product of:
               1.5551565 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.022850275 = queryNorm
             0.5909004 = fieldWeight in 423, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.109375 = fieldNorm(doc=423)
         0.14658321 = weight(abstract_txt:numbers in 423) [ClassicSimilarity], result of:
           0.14658321 = score(doc=423,freq=1.0), product of:
             0.22775464 = queryWeight, product of:
               1.6938573 = boost
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.022850275 = queryNorm
             0.6436015 = fieldWeight in 423, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.8843565 = idf(docFreq=335, maxDocs=44421)
               0.109375 = fieldNorm(doc=423)
         0.13586122 = weight(abstract_txt:reference in 423) [ClassicSimilarity], result of:
           0.13586122 = score(doc=423,freq=2.0), product of:
             0.19671091 = queryWeight, product of:
               1.9279824 = boost
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.022850275 = queryNorm
             0.69066435 = fieldWeight in 423, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.4651284 = idf(docFreq=1388, maxDocs=44421)
               0.109375 = fieldNorm(doc=423)
         0.15402655 = weight(abstract_txt:works in 423) [ClassicSimilarity], result of:
           0.15402655 = score(doc=423,freq=1.0), product of:
             0.26946676 = queryWeight, product of:
               2.2565317 = boost
               5.226035 = idf(docFreq=648, maxDocs=44421)
               0.022850275 = queryNorm
             0.5715976 = fieldWeight in 423, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.226035 = idf(docFreq=648, maxDocs=44421)
               0.109375 = fieldNorm(doc=423)
       0.2 = coord(5/25)
   

5. Micco, M.: Suggestions for automating the Library of Congress Classification schedules (1992) 0.12

   0.11786983 = sum of:
     0.11786983 = product of:
       0.58934915 = sum of:
         0.064733036 = weight(abstract_txt:classification in 2107) [ClassicSimilarity], result of:
           0.064733036 = score(doc=2107,freq=2.0), product of:
             0.10482987 = queryWeight, product of:
               1.1491739 = boost
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.022850275 = queryNorm
             0.6175056 = fieldWeight in 2107, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.9921594 = idf(docFreq=2228, maxDocs=44421)
               0.109375 = fieldNorm(doc=2107)
         0.21363299 = weight(abstract_txt:shelving in 2107) [ClassicSimilarity], result of:
           0.21363299 = score(doc=2107,freq=1.0), product of:
             0.23236993 = queryWeight, product of:
               1.2098128 = boost
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.022850275 = queryNorm
             0.9193659 = fieldWeight in 2107, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.405631 = idf(docFreq=26, maxDocs=44421)
               0.109375 = fieldNorm(doc=2107)
         0.09521798 = weight(abstract_txt:format in 2107) [ClassicSimilarity], result of:
           0.09521798 = score(doc=2107,freq=1.0), product of:
             0.1708272 = queryWeight, product of:
               1.4669716 = boost
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.022850275 = queryNorm
             0.55739355 = fieldWeight in 2107, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0961695 = idf(docFreq=738, maxDocs=44421)
               0.109375 = fieldNorm(doc=2107)
         0.10232259 = weight(abstract_txt:books in 2107) [ClassicSimilarity], result of:
           0.10232259 = score(doc=2107,freq=1.0), product of:
             0.17922232 = queryWeight, product of:
               1.5025856 = boost
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.022850275 = queryNorm
             0.57092553 = fieldWeight in 2107, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2198906 = idf(docFreq=652, maxDocs=44421)
               0.109375 = fieldNorm(doc=2107)
         0.11344257 = weight(abstract_txt:congress in 2107) [ClassicSimilarity], result of:
           0.11344257 = score(doc=2107,freq=1.0), product of:
             0.19198255 = queryWeight, product of:
               1.5551565 = boost
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.022850275 = queryNorm
             0.5909004 = fieldWeight in 2107, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4025183 = idf(docFreq=543, maxDocs=44421)
               0.109375 = fieldNorm(doc=2107)
       0.2 = coord(5/25)