Sparck Jones, K.; Rijsbergen, C.J. van: Progress in documentation : Information retrieval test collection (1976)
0.00
0.0017471868 = product of:
0.010483121 = sum of:
0.010483121 = weight(_text_:information in 4161) [ClassicSimilarity], result of:
0.010483121 = score(doc=4161,freq=2.0), product of:
0.0772133 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.043984205 = queryNorm
0.13576832 = fieldWeight in 4161, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=4161)
0.16666667 = coord(1/6)
