-
Weinberg, B.H.: Library classification and information retrieval thesauri : comparison and contrasts (1995)
0.07
0.069270365 = product of:
0.10390554 = sum of:
0.031532075 = weight(_text_:im in 5538) [ClassicSimilarity], result of:
0.031532075 = score(doc=5538,freq=2.0), product of:
0.1442303 = queryWeight, product of:
2.8267863 = idf(docFreq=7115, maxDocs=44218)
0.051022716 = queryNorm
0.2186231 = fieldWeight in 5538, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.8267863 = idf(docFreq=7115, maxDocs=44218)
0.0546875 = fieldNorm(doc=5538)
0.072373465 = product of:
0.10856019 = sum of:
0.03634593 = weight(_text_:online in 5538) [ClassicSimilarity], result of:
0.03634593 = score(doc=5538,freq=2.0), product of:
0.1548489 = queryWeight, product of:
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.051022716 = queryNorm
0.23471867 = fieldWeight in 5538, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.0546875 = fieldNorm(doc=5538)
0.07221426 = weight(_text_:retrieval in 5538) [ClassicSimilarity], result of:
0.07221426 = score(doc=5538,freq=8.0), product of:
0.15433937 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.051022716 = queryNorm
0.46789268 = fieldWeight in 5538, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=5538)
0.6666667 = coord(2/3)
0.6666667 = coord(2/3)
- Abstract
- Thesauri-structured controlled vocabularies, designed for information retrieval-are compared with classification schemes developed for the arrangement of library materials and/or bibliographic records. The syndetic structure (BTs and NTs) within the alphabetic sequence of thesauri constitutes a hidden classification, but many thesauri include an explicit hierarchical display; some feature notation. The various structures and applications of thesauri are surveyed, with an emphasis on their increasing role in electronic information retrieval. The skills required for thesaurus construction are similar to those for the development of classification schemes. The distinction between these activities is expected to blur in the future.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Weinberg, B.H.: Book indexes in France : medieval specimens and modern practices (2000)
0.01
0.01075336 = product of:
0.03226008 = sum of:
0.03226008 = product of:
0.09678023 = sum of:
0.09678023 = weight(_text_:22 in 486) [ClassicSimilarity], result of:
0.09678023 = score(doc=486,freq=2.0), product of:
0.17867287 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051022716 = queryNorm
0.5416616 = fieldWeight in 486, 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=486)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Indexer. 22(2000) no.1, S.2-13
-
Weinberg, B.H.: Predecessors of scientific indexing structures in the domain of religion (2001)
0.01
0.01075336 = product of:
0.03226008 = sum of:
0.03226008 = product of:
0.09678023 = sum of:
0.09678023 = weight(_text_:22 in 4172) [ClassicSimilarity], result of:
0.09678023 = score(doc=4172,freq=2.0), product of:
0.17867287 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051022716 = queryNorm
0.5416616 = fieldWeight in 4172, 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=4172)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Indexer. 22(2001) no.4, S.178-180
-
Weinberg, B.H.: Index structures in early Hebrew Biblical word lists : preludes to the first Latin concordances (2004)
0.01
0.01075336 = product of:
0.03226008 = sum of:
0.03226008 = product of:
0.09678023 = sum of:
0.09678023 = weight(_text_:22 in 4180) [ClassicSimilarity], result of:
0.09678023 = score(doc=4180,freq=2.0), product of:
0.17867287 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051022716 = queryNorm
0.5416616 = fieldWeight in 4180, 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=4180)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 17.10.2005 13:54:22
-
Weinberg, B.H.; Cunningham, J.A.: Term specifity and online postings : inverse relationship? (1984)
0.01
0.009230712 = product of:
0.027692135 = sum of:
0.027692135 = product of:
0.0830764 = sum of:
0.0830764 = weight(_text_:online in 292) [ClassicSimilarity], result of:
0.0830764 = score(doc=292,freq=2.0), product of:
0.1548489 = queryWeight, product of:
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.051022716 = queryNorm
0.5364998 = fieldWeight in 292, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.125 = fieldNorm(doc=292)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Weinberg, B.H.; Cunningham, J.A.: Online search strategy and term frequency statistics (1983)
0.01
0.009230712 = product of:
0.027692135 = sum of:
0.027692135 = product of:
0.0830764 = sum of:
0.0830764 = weight(_text_:online in 6892) [ClassicSimilarity], result of:
0.0830764 = score(doc=6892,freq=2.0), product of:
0.1548489 = queryWeight, product of:
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.051022716 = queryNorm
0.5364998 = fieldWeight in 6892, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.125 = fieldNorm(doc=6892)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Weinberg, B.H.: ¬The body of a reference work in relation to its index : an analysis of wordsmanship (1996)
0.01
0.0086900275 = product of:
0.02607008 = sum of:
0.02607008 = product of:
0.07821024 = sum of:
0.07821024 = weight(_text_:22 in 6940) [ClassicSimilarity], result of:
0.07821024 = score(doc=6940,freq=4.0), product of:
0.17867287 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051022716 = queryNorm
0.4377287 = fieldWeight in 6940, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=6940)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 8. 3.1997 20:22:25
- Source
- Indexer. 20(1996) no.1, S.18-22
-
Weinberg, B.H.; Cunningham, J.A.: ¬The relationship between term specifity in MeSH and online postings in Medline (1985)
0.01
0.008076874 = product of:
0.02423062 = sum of:
0.02423062 = product of:
0.07269186 = sum of:
0.07269186 = weight(_text_:online in 7666) [ClassicSimilarity], result of:
0.07269186 = score(doc=7666,freq=2.0), product of:
0.1548489 = queryWeight, product of:
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.051022716 = queryNorm
0.46943733 = fieldWeight in 7666, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.109375 = fieldNorm(doc=7666)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Doszkocs, T.E.; Weinberg, B.H.: Natural language interfaces for information retrieval (1988)
0.01
0.008023808 = product of:
0.024071421 = sum of:
0.024071421 = product of:
0.07221426 = sum of:
0.07221426 = weight(_text_:retrieval in 2697) [ClassicSimilarity], result of:
0.07221426 = score(doc=2697,freq=2.0), product of:
0.15433937 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.051022716 = queryNorm
0.46789268 = fieldWeight in 2697, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.109375 = fieldNorm(doc=2697)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
-
Weinberg, B.H.: ¬The indexes to AACR2 and its 1988 revision : an evaluation (1990)
0.01
0.006144777 = product of:
0.01843433 = sum of:
0.01843433 = product of:
0.055302992 = sum of:
0.055302992 = weight(_text_:22 in 3592) [ClassicSimilarity], result of:
0.055302992 = score(doc=3592,freq=2.0), product of:
0.17867287 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051022716 = queryNorm
0.30952093 = fieldWeight in 3592, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=3592)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 14. 1.1996 5:56:22
-
Weinberg, B.H.: Why postcoordination fails the searcher (1995)
0.00
0.004585033 = product of:
0.013755098 = sum of:
0.013755098 = product of:
0.041265294 = sum of:
0.041265294 = weight(_text_:retrieval in 1942) [ClassicSimilarity], result of:
0.041265294 = score(doc=1942,freq=2.0), product of:
0.15433937 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.051022716 = queryNorm
0.26736724 = fieldWeight in 1942, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=1942)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Postcoordination, in which terms are combined at the searching stage rather than at the time of indexing, has been the main form of database access since the 1950s. Reasons for the failure of postcoordinate searches include the absence of specified relationships between terms, the complexity of formulating Boolean searches, and the high frequency of terms in large databases. Recent writers on indexing electronic text have called for precoordination to enhance the precision of retrieval. Among precoordinate indexing structures, a book index with coined modifications is the most precise. The time and cost associated with such customized analysis will, however, limit its application in the electronic environment
-
Weinberg, B.H.: ¬The hidden classification in Library of Congress Subject Headings for Judaica (1993)
0.00
0.0034615172 = product of:
0.010384551 = sum of:
0.010384551 = product of:
0.031153653 = sum of:
0.031153653 = weight(_text_:online in 6162) [ClassicSimilarity], result of:
0.031153653 = score(doc=6162,freq=2.0), product of:
0.1548489 = queryWeight, product of:
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.051022716 = queryNorm
0.20118743 = fieldWeight in 6162, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0349014 = idf(docFreq=5778, maxDocs=44218)
0.046875 = fieldNorm(doc=6162)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- The syndetic structure of subject headings lists, in particular the broader/narrower term references, constitutes a hidden classification that may be converted to an explicit tree structure. Such a structure may be used to examine the hierarchy of LC subject headings (LCSH) and to compare them with that of Library of Congress Classification (LCC). Joseph Galron's compilation, 'Library of Congress Subject Headings in Jewish Studies (1991)', was analyzed for several features relating to the hierarchy of terms, and trees tructures were built for the deepest hierarchies: Jews, Judaism, Hebrew language, and Israel. These were compared with the corresponding LC classes. A hierarchy in LCSH may have more levels than the corresponding schedule in LCC. It is concluded that the conversion of the BT / NT references of subject headings lists into tree structures is a useful tool for examining the correctness of a hierarchy. Display of subject headings in tree-structure format can assist users in grasping the hierarchy of subject headings and in navigating online catalogs
