Search (2 results, page 1 of 1)
-
Jansen, B.J.; Liu, Z.; Simon, Z.: ¬The effect of ad rank on the performance of keyword advertising campaigns (2013)
0.03
0.028446669 = product of: 0.056893338 = sum of: 0.056893338 = product of: 0.113786675 = sum of: 0.113786675 = weight(_text_:z in 1095) [ClassicSimilarity], result of: 0.113786675 = score(doc=1095,freq=4.0), product of: 0.2728844 = queryWeight, product of: 5.337313 = idf(docFreq=577, maxDocs=44218) 0.051127672 = queryNorm 0.41697758 = fieldWeight in 1095, 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=1095) 0.5 = coord(1/2) 0.5 = coord(1/2)
-
Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009)
0.01
0.01039064 = product of: 0.02078128 = sum of: 0.02078128 = product of: 0.04156256 = sum of: 0.04156256 = weight(_text_:22 in 2742) [ClassicSimilarity], result of: 0.04156256 = score(doc=2742,freq=2.0), product of: 0.1790404 = queryWeight, product of: 3.5018296 = idf(docFreq=3622, maxDocs=44218) 0.051127672 = queryNorm 0.23214069 = fieldWeight in 2742, 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=2742) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Date
- 22. 3.2009 17:49:11