-
O'Neill, E.T.; Childress, E.; Dean, R.; Kammerer, K.; Vizine-Goetz, D.; Chan, L.M.; El-Hoshy, L.: FAST: faceted application of subject terminology (2003)
0.02
0.021850443 = product of:
0.08740177 = sum of:
0.08740177 = product of:
0.2622053 = sum of:
0.2622053 = weight(_text_:lcsh's in 3816) [ClassicSimilarity], result of:
0.2622053 = score(doc=3816,freq=2.0), product of:
0.4791885 = queryWeight, product of:
9.905128 = idf(docFreq=5, maxDocs=44218)
0.048377823 = queryNorm
0.54718614 = fieldWeight in 3816, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
9.905128 = idf(docFreq=5, maxDocs=44218)
0.0390625 = fieldNorm(doc=3816)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Abstract
- The Library of Congress Subject Headings schema (LCSH) is by far the most commonly used and widely accepted subject vocabulary for general application. It is the de facto universal controlled vocabulary and has been a model for developing subject heading systems by many countries. However, LCSH's complex syntax and rules for constructing headings restrict its application by requiring highly skilled personnel and limit the effectiveness of automated authority control. Recent trends, driven to a large extent by the rapid growth of the Web, are forcing changes in bibliographic control systems to make them easier to use, understand, and apply, and subject headings are no exception. The purpose of adapting the LCSH with a simplified syntax to create FAST is to retain the very rich vocabulary of LCSH while making the schema easier to understand, control, apply, and use. The schema maintains upward compatibility with LCSH, and any valid set of LC subject headings can be converted to FAST headings.
-
Chan, L.M.; Mitchell, J.S.: Dewey Decimal Classification : principles and applications (2003)
0.01
0.011470423 = product of:
0.045881692 = sum of:
0.045881692 = product of:
0.091763385 = sum of:
0.091763385 = weight(_text_:22 in 3247) [ClassicSimilarity], result of:
0.091763385 = score(doc=3247,freq=2.0), product of:
0.1694109 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048377823 = queryNorm
0.5416616 = fieldWeight in 3247, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=3247)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Object
- DDC-22
-
Yi, K.; Chan, L.M.: ¬A visualization software tool for Library of Congress Subject Headings (2008)
0.01
0.008189628 = product of:
0.03275851 = sum of:
0.03275851 = product of:
0.06551702 = sum of:
0.06551702 = weight(_text_:aspects in 2503) [ClassicSimilarity], result of:
0.06551702 = score(doc=2503,freq=2.0), product of:
0.2186614 = queryWeight, product of:
4.5198684 = idf(docFreq=1308, maxDocs=44218)
0.048377823 = queryNorm
0.29962775 = fieldWeight in 2503, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.5198684 = idf(docFreq=1308, maxDocs=44218)
0.046875 = fieldNorm(doc=2503)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Content
- The aim of this study is to develop a software tool, VisuaLCSH, for effective searching, browsing, and maintenance of LCSH. This tool enables visualizing subject headings and hierarchical structures implied and embedded in LCSH. A conceptual framework for converting the hierarchical structure of headings in LCSH to an explicit tree structure is proposed, described, and implemented. The highlights of VisuaLCSH are summarized below: 1) revealing multiple aspects of a heading; 2) normalizing the hierarchical relationships in LCSH; 3) showing multi-level hierarchies in LCSH sub-trees; 4) improving the navigational function of LCSH in retrieval; and 5) enabling the implementation of generic search, i.e., the 'exploding' feature, in searching LCSH.
-
Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000)
0.00
0.0049158954 = product of:
0.019663582 = sum of:
0.019663582 = product of:
0.039327163 = sum of:
0.039327163 = weight(_text_:22 in 5920) [ClassicSimilarity], result of:
0.039327163 = score(doc=5920,freq=2.0), product of:
0.1694109 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048377823 = queryNorm
0.23214069 = fieldWeight in 5920, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5920)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 27. 5.2001 16:22:21
-
O'Neill, E.T.; Chan, L.M.; Childress, E.; Dean, R.; El-Hoshy, L.M.; Vizine-Goetz, D.: Form subdivisions : their identification and use in LCSH (2001)
0.00
0.0049158954 = product of:
0.019663582 = sum of:
0.019663582 = product of:
0.039327163 = sum of:
0.039327163 = weight(_text_:22 in 2205) [ClassicSimilarity], result of:
0.039327163 = score(doc=2205,freq=2.0), product of:
0.1694109 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048377823 = queryNorm
0.23214069 = fieldWeight in 2205, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2205)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 10. 9.2000 17:38:22
-
Chan, L.M.; Hodges, T.L.: Library of Congress Classification (LCC) (2009)
0.00
0.0049158954 = product of:
0.019663582 = sum of:
0.019663582 = product of:
0.039327163 = sum of:
0.039327163 = weight(_text_:22 in 3842) [ClassicSimilarity], result of:
0.039327163 = score(doc=3842,freq=2.0), product of:
0.1694109 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048377823 = queryNorm
0.23214069 = fieldWeight in 3842, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=3842)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 27. 8.2011 14:22:42
