Huang, M.-H.: ¬The evaluation of information retrieval systems (1997)
0.01
0.014392736 = product of:
0.028785473 = sum of:
0.028785473 = product of:
0.057570945 = sum of:
0.057570945 = weight(_text_:systems in 1827) [ClassicSimilarity], result of:
0.057570945 = score(doc=1827,freq=2.0), product of:
0.16955522 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.055172667 = queryNorm
0.339541 = fieldWeight in 1827, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.078125 = fieldNorm(doc=1827)
0.5 = coord(1/2)
0.5 = coord(1/2)