-
Cleverdon, C.W.: On the inverse relationship of recall and precision (1972)
0.00
0.0042019994 = product of:
0.008403999 = sum of:
0.008403999 = product of:
0.016807998 = sum of:
0.016807998 = weight(_text_:e in 1843) [ClassicSimilarity], result of:
0.016807998 = score(doc=1843,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2540935 = fieldWeight in 1843, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=1843)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Cleverdon, C.W.: Evaluation tests of information retrieval systems (1970)
0.00
0.0042019994 = product of:
0.008403999 = sum of:
0.008403999 = product of:
0.016807998 = sum of:
0.016807998 = weight(_text_:e in 2272) [ClassicSimilarity], result of:
0.016807998 = score(doc=2272,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2540935 = fieldWeight in 2272, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=2272)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Cleverdon, C.W.: Design and evaluation of information systems (1971)
0.00
0.0042019994 = product of:
0.008403999 = sum of:
0.008403999 = product of:
0.016807998 = sum of:
0.016807998 = weight(_text_:e in 248) [ClassicSimilarity], result of:
0.016807998 = score(doc=248,freq=2.0), product of:
0.06614887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.04602077 = queryNorm
0.2540935 = fieldWeight in 248, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=248)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e