DeHart, F.E.; Glazier, J.: Computer searching on PRECIS : an exploration of measuring comparative retrieval effectiveness (1984)
0.00
0.0012126293 = product of:
0.0024252585 = sum of:
0.0024252585 = product of:
0.004850517 = sum of:
0.004850517 = weight(_text_:s in 828) [ClassicSimilarity], result of:
0.004850517 = score(doc=828,freq=2.0), product of:
0.057684682 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.053056188 = queryNorm
0.08408674 = fieldWeight in 828, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=828)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- International classification. 11(1984), S.3-8