Xie, I.: Information searching and search models (2009)
0.01
0.010712966 = product of:
0.021425933 = sum of:
0.021425933 = product of:
0.042851865 = sum of:
0.042851865 = weight(_text_:i in 3821) [ClassicSimilarity], result of:
0.042851865 = score(doc=3821,freq=2.0), product of:
0.17138503 = queryWeight, product of:
3.7717297 = idf(docFreq=2765, maxDocs=44218)
0.045439374 = queryNorm
0.25003272 = fieldWeight in 3821, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.7717297 = idf(docFreq=2765, maxDocs=44218)
0.046875 = fieldNorm(doc=3821)
0.5 = coord(1/2)
0.5 = coord(1/2)