Zhang, J.; Chen, Y.; Zhao, Y.; Wolfram, D.; Ma, F.: Public health and social media : a study of Zika virus-related posts on Yahoo! Answers (2020)
0.00
0.0025503722 = product of:
0.0051007443 = sum of:
0.0051007443 = product of:
0.010201489 = sum of:
0.010201489 = weight(_text_:d in 5672) [ClassicSimilarity], result of:
0.010201489 = score(doc=5672,freq=2.0), product of:
0.09719954 = queryWeight, product of:
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.0511611 = queryNorm
0.104954086 = fieldWeight in 5672, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.899872 = idf(docFreq=17979, maxDocs=44218)
0.0390625 = fieldNorm(doc=5672)
0.5 = coord(1/2)
0.5 = coord(1/2)