Ahlgren, P.; Grönqvist, L.: Evaluation of retrieval effectiveness with incomplete relevance data : theoretical and experimental comparison of three measures (2008)
0.01
0.011651264 = product of:
0.023302527 = sum of:
0.023302527 = product of:
0.046605054 = sum of:
0.046605054 = weight(_text_:l in 2032) [ClassicSimilarity], result of:
0.046605054 = score(doc=2032,freq=2.0), product of:
0.15161102 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.03814447 = queryNorm
0.30739886 = fieldWeight in 2032, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=2032)
0.5 = coord(1/2)
0.5 = coord(1/2)