Wu, Z.; Li, R.; Zhou, Z.; Guo, J.; Jiang, J.; Su, X.: ¬A user sensitive subject protection approach for book search service (2020)
0.05
0.045279544 = product of:
0.09055909 = sum of:
0.09055909 = sum of:
0.053657573 = weight(_text_:x in 5617) [ClassicSimilarity], result of:
0.053657573 = score(doc=5617,freq=2.0), product of:
0.23002104 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.05447273 = queryNorm
0.23327245 = fieldWeight in 5617, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.0390625 = fieldNorm(doc=5617)
0.036901515 = weight(_text_:22 in 5617) [ClassicSimilarity], result of:
0.036901515 = score(doc=5617,freq=2.0), product of:
0.19075422 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05447273 = queryNorm
0.19345059 = fieldWeight in 5617, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=5617)
0.5 = coord(1/2)
- Date
- 6. 1.2020 17:22:25