Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : Il. An evaluation by undergraduates (2003)
0.01
0.0089536635 = product of:
0.035814654 = sum of:
0.035814654 = weight(_text_:22 in 2117) [ClassicSimilarity], result of:
0.035814654 = score(doc=2117,freq=2.0), product of:
0.18513593 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052868344 = queryNorm
0.19345059 = fieldWeight in 2117, 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=2117)
0.25 = coord(1/4)
- Date
- 24. 1.2004 18:27:22