Tahani, V.: ¬A general conceptual framework for information retrieval systems (1972)
0.02
0.021294061 = product of:
0.09582327 = sum of:
0.022054855 = weight(_text_:of in 70) [ClassicSimilarity], result of:
0.022054855 = score(doc=70,freq=8.0), product of:
0.06382632 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.040816 = queryNorm
0.34554482 = fieldWeight in 70, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.078125 = fieldNorm(doc=70)
0.07376842 = weight(_text_:systems in 70) [ClassicSimilarity], result of:
0.07376842 = score(doc=70,freq=6.0), product of:
0.12543468 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.040816 = queryNorm
0.5881023 = fieldWeight in 70, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.078125 = fieldNorm(doc=70)
0.22222222 = coord(2/9)
- Abstract
- Develops a conceptual framework for information retrieval systems which admit of imprecision in the form of fuzziness in document characterization, retrieval rules, and file structures. A mathematical model for such systems, based on the theory of fuzzy sets, is introduced
- Imprint
- Berkeley, CA : University of California
Tahani, V.: ¬A fuzzy model of document retrieval systems (1976)
0.02
0.01906405 = product of:
0.08578823 = sum of:
0.017643884 = weight(_text_:of in 5477) [ClassicSimilarity], result of:
0.017643884 = score(doc=5477,freq=2.0), product of:
0.06382632 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.040816 = queryNorm
0.27643585 = fieldWeight in 5477, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.125 = fieldNorm(doc=5477)
0.068144344 = weight(_text_:systems in 5477) [ClassicSimilarity], result of:
0.068144344 = score(doc=5477,freq=2.0), product of:
0.12543468 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.040816 = queryNorm
0.5432656 = fieldWeight in 5477, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.125 = fieldNorm(doc=5477)
0.22222222 = coord(2/9)