Search (2 results, page 1 of 1)
- Did you mean:
- author's%3a%22Piontek%2c S.%22 2
- authors%3a%22Piontek%2c S.%22 2
-
Cleverdon, C.W.: ¬The Cranfield tests on index language devices (1967)
0.00
0.0025524131 = product of: 0.0051048263 = sum of: 0.0051048263 = product of: 0.010209653 = sum of: 0.010209653 = weight(_text_:s in 1957) [ClassicSimilarity], result of: 0.010209653 = score(doc=1957,freq=4.0), product of: 0.05008241 = queryWeight, product of: 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.046063907 = queryNorm 0.20385705 = fieldWeight in 1957, product of: 2.0 = tf(freq=4.0), with freq of: 4.0 = termFreq=4.0 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.09375 = fieldNorm(doc=1957) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.47-58.
- Source
- Aslib proceedings. 19(1967), S.173-194
-
Cleverdon, C.W.: Evaluation tests of information retrieval systems (1970)
0.00
0.002406438 = product of: 0.004812876 = sum of: 0.004812876 = product of: 0.009625752 = sum of: 0.009625752 = weight(_text_:s in 2272) [ClassicSimilarity], result of: 0.009625752 = score(doc=2272,freq=2.0), product of: 0.05008241 = queryWeight, product of: 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.046063907 = queryNorm 0.19219826 = fieldWeight in 2272, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.125 = fieldNorm(doc=2272) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Source
- Journal of documentation. 26(1970), S.55-67