-
Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : Il. An evaluation by undergraduates (2003)
0.02
0.015393697 = product of:
0.030787393 = sum of:
0.030787393 = sum of:
0.0044391407 = weight(_text_:e in 2117) [ClassicSimilarity], result of:
0.0044391407 = score(doc=2117,freq=2.0), product of:
0.055905603 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.038894374 = queryNorm
0.07940422 = fieldWeight in 2117, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0390625 = fieldNorm(doc=2117)
0.026348254 = weight(_text_:22 in 2117) [ClassicSimilarity], result of:
0.026348254 = score(doc=2117,freq=2.0), product of:
0.13620147 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038894374 = 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)
0.5 = coord(1/2)
- Date
- 24. 1.2004 18:27:22
- Language
- e
-
Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : I. Theory and background (2003)
0.00
0.0011097852 = product of:
0.0022195703 = sum of:
0.0022195703 = product of:
0.0044391407 = sum of:
0.0044391407 = weight(_text_:e in 5164) [ClassicSimilarity], result of:
0.0044391407 = score(doc=5164,freq=2.0), product of:
0.055905603 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.038894374 = queryNorm
0.07940422 = fieldWeight in 5164, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0390625 = fieldNorm(doc=5164)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e
-
Su, L.T.; Chen, H.L.: Evaluation of Web search engines by undergraduate students (1999)
0.00
8.878281E-4 = product of:
0.0017756562 = sum of:
0.0017756562 = product of:
0.0035513125 = sum of:
0.0035513125 = weight(_text_:e in 6546) [ClassicSimilarity], result of:
0.0035513125 = score(doc=6546,freq=2.0), product of:
0.055905603 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.038894374 = queryNorm
0.063523374 = fieldWeight in 6546, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03125 = fieldNorm(doc=6546)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e