Hersh, W.; Pentecost, J.; Hickam, D.: ¬A task-oriented approach to information retrieval evaluation : overview and design for empirical testing (1996)
0.00
0.0021851677 = product of:
0.010925839 = sum of:
0.010925839 = product of:
0.032777514 = sum of:
0.032777514 = weight(_text_:w in 3001) [ClassicSimilarity], result of:
0.032777514 = score(doc=3001,freq=2.0), product of:
0.12974867 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.03404757 = queryNorm
0.2526231 = fieldWeight in 3001, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.046875 = fieldNorm(doc=3001)
0.33333334 = coord(1/3)
0.2 = coord(1/5)
