Bergamaschi, S.; Domnori, E.; Guerra, F.; Rota, S.; Lado, R.T.; Velegrakis, Y.: Understanding the semantics of keyword queries on relational data without accessing the instance (2012)
0.02
0.01692137 = product of:
0.03384274 = sum of:
0.03384274 = product of:
0.06768548 = sum of:
0.06768548 = weight(_text_:y in 431) [ClassicSimilarity], result of:
0.06768548 = score(doc=431,freq=2.0), product of:
0.2546002 = queryWeight, product of:
4.8124003 = idf(docFreq=976, maxDocs=44218)
0.05290503 = queryNorm
0.26585007 = fieldWeight in 431, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.8124003 = idf(docFreq=976, maxDocs=44218)
0.0390625 = fieldNorm(doc=431)
0.5 = coord(1/2)
0.5 = coord(1/2)