Pan, M.; Huang, J.X.; He, T.; Mao, Z.; Ying, Z.; Tu, X.: ¬A simple kernel co-occurrence-based enhancement for pseudo-relevance feedback (2020)
0.01
0.0070286165 = product of:
0.03514308 = sum of:
0.03514308 = weight(_text_:t in 5678) [ClassicSimilarity], result of:
0.03514308 = score(doc=5678,freq=2.0), product of:
0.1614856 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.040992346 = queryNorm
0.21762364 = fieldWeight in 5678, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.0390625 = fieldNorm(doc=5678)
0.2 = coord(1/5)
