Sen, B.K.: ¬An inquiry into the information retrieval efficiency of LISA PLUS database (1996)
0.05
0.0516285 = product of:
0.103257 = sum of:
0.103257 = product of:
0.206514 = sum of:
0.206514 = weight(_text_:b.k in 6640) [ClassicSimilarity], result of:
0.206514 = score(doc=6640,freq=2.0), product of:
0.36569002 = queryWeight, product of:
8.518833 = idf(docFreq=23, maxDocs=44218)
0.042927243 = queryNorm
0.5647242 = fieldWeight in 6640, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.518833 = idf(docFreq=23, maxDocs=44218)
0.046875 = fieldNorm(doc=6640)
0.5 = coord(1/2)
0.5 = coord(1/2)