Nicholson, S.; Sierra, T.; Eseryel, U.Y.; Park, J.-H.; Barkow, P.; Pozo, E.J.; Ward, J.: How much of it is real? : analysis of paid placement in Web search engine results (2006)
0.01
0.013995698 = product of:
0.027991395 = sum of:
0.027991395 = product of:
0.04198709 = sum of:
0.0050371783 = weight(_text_:s in 5278) [ClassicSimilarity], result of:
0.0050371783 = score(doc=5278,freq=4.0), product of:
0.049418733 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04545348 = queryNorm
0.101928525 = fieldWeight in 5278, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=5278)
0.036949914 = weight(_text_:22 in 5278) [ClassicSimilarity], result of:
0.036949914 = score(doc=5278,freq=2.0), product of:
0.15917034 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04545348 = queryNorm
0.23214069 = fieldWeight in 5278, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5278)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 22. 7.2006 16:32:57
- Source
- Journal of the American Society for Information Science and Technology. 57(2006) no.4, S.448-461