Oppenheim, C.; Morris, A.; McKnight, C.: ¬The evaluation of WWW search engines (2000)
0.02
0.023494203 = product of:
0.046988405 = sum of:
0.046988405 = product of:
0.09397681 = sum of:
0.09397681 = weight(_text_:2000 in 4546) [ClassicSimilarity], result of:
0.09397681 = score(doc=4546,freq=5.0), product of:
0.22124688 = queryWeight, product of:
4.0524464 = idf(docFreq=2088, maxDocs=44218)
0.05459588 = queryNorm
0.42475992 = fieldWeight in 4546, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.0524464 = idf(docFreq=2088, maxDocs=44218)
0.046875 = fieldNorm(doc=4546)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of documentation. 56(2000) no.2, S.190-211
- Year
- 2000