-
Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960)
0.02
0.0153987575 = product of:
0.04619627 = sum of:
0.010709076 = weight(_text_:in in 6158) [ClassicSimilarity], result of:
0.010709076 = score(doc=6158,freq=2.0), product of:
0.059380736 = queryWeight, product of:
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.043654136 = queryNorm
0.18034597 = fieldWeight in 6158, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.09375 = fieldNorm(doc=6158)
0.035487194 = product of:
0.07097439 = sum of:
0.07097439 = weight(_text_:22 in 6158) [ClassicSimilarity], result of:
0.07097439 = score(doc=6158,freq=2.0), product of:
0.15286934 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043654136 = queryNorm
0.46428138 = fieldWeight in 6158, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=6158)
0.5 = coord(1/2)
0.33333334 = coord(2/6)
- Footnote
- Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
-
Tinker, F.F.: Imprecision in meaning measured by inconsistency of indexing (1966-68)
0.01
0.010872297 = product of:
0.03261689 = sum of:
0.008924231 = weight(_text_:in in 2275) [ClassicSimilarity], result of:
0.008924231 = score(doc=2275,freq=2.0), product of:
0.059380736 = queryWeight, product of:
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.043654136 = queryNorm
0.15028831 = fieldWeight in 2275, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.078125 = fieldNorm(doc=2275)
0.02369266 = weight(_text_:und in 2275) [ClassicSimilarity], result of:
0.02369266 = score(doc=2275,freq=2.0), product of:
0.09675359 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.043654136 = queryNorm
0.24487628 = fieldWeight in 2275, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.078125 = fieldNorm(doc=2275)
0.33333334 = coord(2/6)
- Content
- Ergebnisse: (1) Wenn SW frei gewählt, Recherche um so schwieriger, je mehr SW; (2) 'ältere' SW häufiger und weniger genau verwendet als 'jüngere'; (3) viele Wörter mit ungenauer Bedeutung
-
Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967)
0.00
0.0025241538 = product of:
0.015144923 = sum of:
0.015144923 = weight(_text_:in in 1957) [ClassicSimilarity], result of:
0.015144923 = score(doc=1957,freq=4.0), product of:
0.059380736 = queryWeight, product of:
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.043654136 = queryNorm
0.25504774 = fieldWeight in 1957, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.3602545 = idf(docFreq=30841, maxDocs=44218)
0.09375 = fieldNorm(doc=1957)
0.16666667 = coord(1/6)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.