Fan, W.; Luo, M.; Wang, L.; Xi, W.; Fox, E.A.: Tuning before feedback : combining ranking discovery and blind feedback for robust retrieval (2004)
0.01
0.0067642713 = product of:
0.013528543 = sum of:
0.013528543 = product of:
0.040585626 = sum of:
0.040585626 = weight(_text_:12 in 4052) [ClassicSimilarity], result of:
0.040585626 = score(doc=4052,freq=2.0), product of:
0.13281173 = queryWeight, product of:
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.048018172 = queryNorm
0.30558768 = fieldWeight in 4052, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.765864 = idf(docFreq=7562, maxDocs=44218)
0.078125 = fieldNorm(doc=4052)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 12. 2.2005 14:27:19
