He, J.; Meij, E.; Rijke, M. de: Result diversification based on query-specific cluster ranking (2011)
0.00
0.0031246343 = product of:
0.0062492685 = sum of:
0.0062492685 = product of:
0.043744877 = sum of:
0.043744877 = weight(_text_:de in 4355) [ClassicSimilarity], result of:
0.043744877 = score(doc=4355,freq=2.0), product of:
0.18426266 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.042876817 = queryNorm
0.23740499 = fieldWeight in 4355, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.0390625 = fieldNorm(doc=4355)
0.14285715 = coord(1/7)
0.5 = coord(1/2)
