Document (#2093)

Author

Gilchrist, A.

Title

UDC: the 1990s and beyond

Source

Classification research for knowledge representation and organization. Proc. 5th Int. Study Conf. on Classification Research, Toronto, Canada, 24.-28.6.1991. Ed. by N.J. Williamson u. M. Hudon

Imprint

Amsterdam : Elsevier

Year

1992

Pages

S.69-77

Series

FID; 698

Abstract

It is nearly a century since Paul Otlet and Henri LaFontaine suggested the Universal Decimal Classification; and Melvil Dewey allowed them to build on his Decimal Classification. Despite problems of a nature common to many organisations, the scheme is alive and about to enter a new period of regeneration. On the one hand, the UDC has not enjoyed the popular appeal which might arise from appearing as MARC data, and on the other it has been attacked by the theorists for its pretensions. However, it should be remembered that the Medium Edition is some three times larger than the DDC (with greater power of synthesis) and is available in 21 languages. With growing interest in and need for, knowledge structures, it would be tragic if the UDC were neglected. Future plans for the UDC is discussed, including the finalisation of a currently available "machine-readable, multilingual, authority file for UDC maintenance."

Object

UDC

Similar documents (author)

1. Gilchrist, A.: Blissful spiders : forty years of information retrieval (1996) 5.76

   5.7574883 = sum of:
     5.7574883 = weight(author_txt:gilchrist in 4921) [ClassicSimilarity], result of:
       5.7574883 = fieldWeight in 4921, 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=4921)
   

2. Gilchrist, A.: Research and consultancy (1998) 5.76

   5.7574883 = sum of:
     5.7574883 = weight(author_txt:gilchrist in 1394) [ClassicSimilarity], result of:
       5.7574883 = fieldWeight in 1394, 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=1394)
   

3. Gilchrist, A.: Thesauri, taxonomies and ontologies : an etymological note (2003) 5.76

   5.7574883 = sum of:
     5.7574883 = weight(author_txt:gilchrist in 4455) [ClassicSimilarity], result of:
       5.7574883 = fieldWeight in 4455, 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=4455)
   

4. Gilchrist, A.: ¬The thesaurus in retrieval (1971) 5.76

   5.7574883 = sum of:
     5.7574883 = weight(author_txt:gilchrist in 4593) [ClassicSimilarity], result of:
       5.7574883 = fieldWeight in 4593, 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=4593)
   

5. Gilchrist, A.: Structure and function in retrieval (2006) 5.76

   5.7574883 = sum of:
     5.7574883 = weight(author_txt:gilchrist in 5585) [ClassicSimilarity], result of:
       5.7574883 = fieldWeight in 5585, 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=5585)
   

Similar documents (content)

1. Hopwood, H.V.: Dewey expanded (1985) 0.25

   0.2457851 = sum of:
     0.2457851 = product of:
       0.8778039 = sum of:
         0.057855647 = weight(abstract_txt:paul in 3629) [ClassicSimilarity], result of:
           0.057855647 = score(doc=3629,freq=1.0), product of:
             0.16755743 = queryWeight, product of:
               1.1383084 = boost
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.019983105 = queryNorm
             0.34528846 = fieldWeight in 3629, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
         0.06380287 = weight(abstract_txt:classification in 3629) [ClassicSimilarity], result of:
           0.06380287 = score(doc=3629,freq=12.0), product of:
             0.09842595 = queryWeight, product of:
               1.2338089 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.019983105 = queryNorm
             0.6482322 = fieldWeight in 3629, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
         0.12875305 = weight(abstract_txt:otlet in 3629) [ClassicSimilarity], result of:
           0.12875305 = score(doc=3629,freq=3.0), product of:
             0.19803007 = queryWeight, product of:
               1.2374957 = boost
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.019983105 = queryNorm
             0.6501692 = fieldWeight in 3629, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
         0.109330654 = weight(abstract_txt:melvil in 3629) [ClassicSimilarity], result of:
           0.109330654 = score(doc=3629,freq=2.0), product of:
             0.20327525 = queryWeight, product of:
               1.2537771 = boost
               8.113368 = idf(docFreq=35, maxDocs=44218)
               0.019983105 = queryNorm
             0.5378454 = fieldWeight in 3629, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.113368 = idf(docFreq=35, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
         0.12409319 = weight(abstract_txt:henri in 3629) [ClassicSimilarity], result of:
           0.12409319 = score(doc=3629,freq=1.0), product of:
             0.27867532 = queryWeight, product of:
               1.4680043 = boost
               9.499662 = idf(docFreq=8, maxDocs=44218)
               0.019983105 = queryNorm
             0.44529667 = fieldWeight in 3629, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.499662 = idf(docFreq=8, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
         0.22303003 = weight(abstract_txt:lafontaine in 3629) [ClassicSimilarity], result of:
           0.22303003 = score(doc=3629,freq=3.0), product of:
             0.2856286 = queryWeight, product of:
               1.4862057 = boost
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.019983105 = queryNorm
             0.7808393 = fieldWeight in 3629, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
         0.1709385 = weight(abstract_txt:decimal in 3629) [ClassicSimilarity], result of:
           0.1709385 = score(doc=3629,freq=7.0), product of:
             0.22723252 = queryWeight, product of:
               1.8746852 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.019983105 = queryNorm
             0.75226253 = fieldWeight in 3629, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.046875 = fieldNorm(doc=3629)
       0.28 = coord(7/25)
   

2. Hapke, T.: Julius Hanauer : bio-bibliographical traces of a German special librarian, esperantist, and documentalist (2013) 0.14

   0.13572457 = sum of:
     0.13572457 = product of:
       0.67862284 = sum of:
         0.115711294 = weight(abstract_txt:paul in 5551) [ClassicSimilarity], result of:
           0.115711294 = score(doc=5551,freq=1.0), product of:
             0.16755743 = queryWeight, product of:
               1.1383084 = boost
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.019983105 = queryNorm
             0.6905769 = fieldWeight in 5551, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.09375 = fieldNorm(doc=5551)
         0.036836606 = weight(abstract_txt:classification in 5551) [ClassicSimilarity], result of:
           0.036836606 = score(doc=5551,freq=1.0), product of:
             0.09842595 = queryWeight, product of:
               1.2338089 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.019983105 = queryNorm
             0.37425706 = fieldWeight in 5551, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.09375 = fieldNorm(doc=5551)
         0.14867122 = weight(abstract_txt:otlet in 5551) [ClassicSimilarity], result of:
           0.14867122 = score(doc=5551,freq=1.0), product of:
             0.19803007 = queryWeight, product of:
               1.2374957 = boost
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.019983105 = queryNorm
             0.7507508 = fieldWeight in 5551, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.09375 = fieldNorm(doc=5551)
         0.24818638 = weight(abstract_txt:henri in 5551) [ClassicSimilarity], result of:
           0.24818638 = score(doc=5551,freq=1.0), product of:
             0.27867532 = queryWeight, product of:
               1.4680043 = boost
               9.499662 = idf(docFreq=8, maxDocs=44218)
               0.019983105 = queryNorm
             0.89059335 = fieldWeight in 5551, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.499662 = idf(docFreq=8, maxDocs=44218)
               0.09375 = fieldNorm(doc=5551)
         0.12921737 = weight(abstract_txt:decimal in 5551) [ClassicSimilarity], result of:
           0.12921737 = score(doc=5551,freq=1.0), product of:
             0.22723252 = queryWeight, product of:
               1.8746852 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.019983105 = queryNorm
             0.56865704 = fieldWeight in 5551, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.09375 = fieldNorm(doc=5551)
       0.2 = coord(5/25)
   

3. Schallier, W.: Why organize information if you can find it? : UDC and libraries in an Internet world (2007) 0.08

   0.08244409 = sum of:
     0.08244409 = product of:
       0.41222042 = sum of:
         0.024557736 = weight(abstract_txt:classification in 549) [ClassicSimilarity], result of:
           0.024557736 = score(doc=549,freq=1.0), product of:
             0.09842595 = queryWeight, product of:
               1.2338089 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.019983105 = queryNorm
             0.2495047 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0625 = fieldNorm(doc=549)
         0.09911415 = weight(abstract_txt:otlet in 549) [ClassicSimilarity], result of:
           0.09911415 = score(doc=549,freq=1.0), product of:
             0.19803007 = queryWeight, product of:
               1.2374957 = boost
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.019983105 = queryNorm
             0.5005005 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.0625 = fieldNorm(doc=549)
         0.03071501 = weight(abstract_txt:available in 549) [ClassicSimilarity], result of:
           0.03071501 = score(doc=549,freq=1.0), product of:
             0.11425743 = queryWeight, product of:
               1.3293377 = boost
               4.3011656 = idf(docFreq=1628, maxDocs=44218)
               0.019983105 = queryNorm
             0.26882285 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.3011656 = idf(docFreq=1628, maxDocs=44218)
               0.0625 = fieldNorm(doc=549)
         0.17168859 = weight(abstract_txt:lafontaine in 549) [ClassicSimilarity], result of:
           0.17168859 = score(doc=549,freq=1.0), product of:
             0.2856286 = queryWeight, product of:
               1.4862057 = boost
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.019983105 = queryNorm
             0.6010904 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.617446 = idf(docFreq=7, maxDocs=44218)
               0.0625 = fieldNorm(doc=549)
         0.08614492 = weight(abstract_txt:decimal in 549) [ClassicSimilarity], result of:
           0.08614492 = score(doc=549,freq=1.0), product of:
             0.22723252 = queryWeight, product of:
               1.8746852 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.019983105 = queryNorm
             0.3791047 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0625 = fieldNorm(doc=549)
       0.2 = coord(5/25)
   

4. Rayward, W.B.: ¬The origins of information science and the International Institute of Bibliography / International Federation for Information and Documentation (FID) (1997) 0.08

   0.08034815 = sum of:
     0.08034815 = product of:
       0.5021759 = sum of:
         0.1349965 = weight(abstract_txt:paul in 75) [ClassicSimilarity], result of:
           0.1349965 = score(doc=75,freq=1.0), product of:
             0.16755743 = queryWeight, product of:
               1.1383084 = boost
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.019983105 = queryNorm
             0.80567306 = fieldWeight in 75, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.3661537 = idf(docFreq=75, maxDocs=44218)
               0.109375 = fieldNorm(doc=75)
         0.04297604 = weight(abstract_txt:classification in 75) [ClassicSimilarity], result of:
           0.04297604 = score(doc=75,freq=1.0), product of:
             0.09842595 = queryWeight, product of:
               1.2338089 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.019983105 = queryNorm
             0.43663323 = fieldWeight in 75, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.109375 = fieldNorm(doc=75)
         0.17344977 = weight(abstract_txt:otlet in 75) [ClassicSimilarity], result of:
           0.17344977 = score(doc=75,freq=1.0), product of:
             0.19803007 = queryWeight, product of:
               1.2374957 = boost
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.019983105 = queryNorm
             0.8758759 = fieldWeight in 75, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.109375 = fieldNorm(doc=75)
         0.1507536 = weight(abstract_txt:decimal in 75) [ClassicSimilarity], result of:
           0.1507536 = score(doc=75,freq=1.0), product of:
             0.22723252 = queryWeight, product of:
               1.8746852 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.019983105 = queryNorm
             0.66343325 = fieldWeight in 75, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.109375 = fieldNorm(doc=75)
       0.16 = coord(4/25)
   

5. Rafferty, P.: ¬The representation of knowledge in library classification schemes (2001) 0.07

   0.065893084 = sum of:
     0.065893084 = product of:
       0.41183177 = sum of:
         0.08507049 = weight(abstract_txt:classification in 640) [ClassicSimilarity], result of:
           0.08507049 = score(doc=640,freq=12.0), product of:
             0.09842595 = queryWeight, product of:
               1.2338089 = boost
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.019983105 = queryNorm
             0.8643096 = fieldWeight in 640, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               3.9920752 = idf(docFreq=2218, maxDocs=44218)
               0.0625 = fieldNorm(doc=640)
         0.09911415 = weight(abstract_txt:otlet in 640) [ClassicSimilarity], result of:
           0.09911415 = score(doc=640,freq=1.0), product of:
             0.19803007 = queryWeight, product of:
               1.2374957 = boost
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.019983105 = queryNorm
             0.5005005 = fieldWeight in 640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               8.008008 = idf(docFreq=39, maxDocs=44218)
               0.0625 = fieldNorm(doc=640)
         0.1415022 = weight(abstract_txt:theorists in 640) [ClassicSimilarity], result of:
           0.1415022 = score(doc=640,freq=2.0), product of:
             0.1992842 = queryWeight, product of:
               1.241408 = boost
               8.033325 = idf(docFreq=38, maxDocs=44218)
               0.019983105 = queryNorm
             0.7100523 = fieldWeight in 640, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               8.033325 = idf(docFreq=38, maxDocs=44218)
               0.0625 = fieldNorm(doc=640)
         0.08614492 = weight(abstract_txt:decimal in 640) [ClassicSimilarity], result of:
           0.08614492 = score(doc=640,freq=1.0), product of:
             0.22723252 = queryWeight, product of:
               1.8746852 = boost
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.019983105 = queryNorm
             0.3791047 = fieldWeight in 640, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.0656753 = idf(docFreq=278, maxDocs=44218)
               0.0625 = fieldNorm(doc=640)
       0.16 = coord(4/25)