Ro, J.S.: ¬An evaluation of the applicability of ranking algorithms to improve the effectiveness of full-text retrieval : 1. On the effectiveness of full-text retrieval (1988)
0.04
0.041226044 = product of:
0.061839066 = sum of:
0.03783412 = weight(_text_:of in 4030) [ClassicSimilarity], result of:
0.03783412 = score(doc=4030,freq=10.0), product of:
0.08160993 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.05218836 = queryNorm
0.46359703 = fieldWeight in 4030, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.09375 = fieldNorm(doc=4030)
0.02400495 = product of:
0.0480099 = sum of:
0.0480099 = weight(_text_:science in 4030) [ClassicSimilarity], result of:
0.0480099 = score(doc=4030,freq=2.0), product of:
0.13747036 = queryWeight, product of:
2.6341193 = idf(docFreq=8627, maxDocs=44218)
0.05218836 = queryNorm
0.34923816 = fieldWeight in 4030, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.6341193 = idf(docFreq=8627, maxDocs=44218)
0.09375 = fieldNorm(doc=4030)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Source
- Journal of the American Society for Information Science. 39(1988), S.73-78
