Fagni, T.; Sebastiani, F.: Selecting negative examples for hierarchical text classification: An experimental comparison (2010)
0.01
0.01315201 = product of:
0.03945603 = sum of:
0.03945603 = weight(_text_:f in 4101) [ClassicSimilarity], result of:
0.03945603 = score(doc=4101,freq=2.0), product of:
0.17919436 = queryWeight, product of:
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.04495835 = queryNorm
0.22018565 = fieldWeight in 4101, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.0390625 = fieldNorm(doc=4101)
0.33333334 = coord(1/3)
