Godby, C. J.; Stuler, J.: ¬The Library of Congress Classification as a knowledge base for automatic subject categorization (2001)
0.03
0.026618127 = product of:
0.053236254 = sum of:
0.053236254 = product of:
0.10647251 = sum of:
0.10647251 = weight(_text_:headings in 1567) [ClassicSimilarity], result of:
0.10647251 = score(doc=1567,freq=2.0), product of:
0.24837378 = queryWeight, product of:
4.849944 = idf(docFreq=940, maxDocs=44218)
0.051211677 = queryNorm
0.42867854 = fieldWeight in 1567, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.849944 = idf(docFreq=940, maxDocs=44218)
0.0625 = fieldNorm(doc=1567)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- This paper describes a set of experiments in adapting a subset of the Library of Congress Classification for use as a database for automatic classification. A high degree of concept integrity was obtained when subject headings were mapped from OCLC's WorldCat database and filtered using the log-likelihood statistic
