Gray, W.A.; Harley, A.J.: Computer assisted indexing (1971)
0.09
0.09113503 = product of:
0.36454013 = sum of:
0.36454013 = weight(_text_:assisted in 4346) [ClassicSimilarity], result of:
0.36454013 = score(doc=4346,freq=2.0), product of:
0.3052666 = queryWeight, product of:
6.7552447 = idf(docFreq=139, maxDocs=44218)
0.045189567 = queryNorm
1.1941698 = fieldWeight in 4346, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.7552447 = idf(docFreq=139, maxDocs=44218)
0.125 = fieldNorm(doc=4346)
0.25 = coord(1/4)