-
Wu, Z.; Li, R.; Zhou, Z.; Guo, J.; Jiang, J.; Su, X.: ¬A user sensitive subject protection approach for book search service (2020)
0.07
0.074211076 = product of:
0.14842215 = sum of:
0.14842215 = sum of:
0.113786675 = weight(_text_:z in 5617) [ClassicSimilarity], result of:
0.113786675 = score(doc=5617,freq=4.0), product of:
0.2728844 = queryWeight, product of:
5.337313 = idf(docFreq=577, maxDocs=44218)
0.051127672 = queryNorm
0.41697758 = fieldWeight in 5617, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.337313 = idf(docFreq=577, maxDocs=44218)
0.0390625 = fieldNorm(doc=5617)
0.03463547 = weight(_text_:22 in 5617) [ClassicSimilarity], result of:
0.03463547 = score(doc=5617,freq=2.0), product of:
0.1790404 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051127672 = 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
-
Wu, Z.; Xie, J.; Pan, J.; Su, X.: ¬An effective approach for the protection of user privacy in a digital library (2019)
0.02
0.020114832 = product of:
0.040229663 = sum of:
0.040229663 = product of:
0.08045933 = sum of:
0.08045933 = weight(_text_:z in 5782) [ClassicSimilarity], result of:
0.08045933 = score(doc=5782,freq=2.0), product of:
0.2728844 = queryWeight, product of:
5.337313 = idf(docFreq=577, maxDocs=44218)
0.051127672 = queryNorm
0.29484767 = fieldWeight in 5782, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.337313 = idf(docFreq=577, maxDocs=44218)
0.0390625 = fieldNorm(doc=5782)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Wu, Z.; Lu, C.; Zhao, Y.; Xie, J.; Zou, D.; Su, X.: ¬The protection of user preference privacy in personalized information retrieval : challenges and overviews (2021)
0.02
0.020114832 = product of:
0.040229663 = sum of:
0.040229663 = product of:
0.08045933 = sum of:
0.08045933 = weight(_text_:z in 520) [ClassicSimilarity], result of:
0.08045933 = score(doc=520,freq=2.0), product of:
0.2728844 = queryWeight, product of:
5.337313 = idf(docFreq=577, maxDocs=44218)
0.051127672 = queryNorm
0.29484767 = fieldWeight in 520, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.337313 = idf(docFreq=577, maxDocs=44218)
0.0390625 = fieldNorm(doc=520)
0.5 = coord(1/2)
0.5 = coord(1/2)