-
Lancaster, F.W.; Fayen, E.G.: Information retrieval on-line (1973)
0.13
0.1252552 = product of:
0.2505104 = sum of:
0.2505104 = product of:
0.5010208 = sum of:
0.5010208 = weight(_text_:f.w in 2260) [ClassicSimilarity], result of:
0.5010208 = score(doc=2260,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
1.5903444 = fieldWeight in 2260, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.15625 = fieldNorm(doc=2260)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Lancaster, F.W.: Toward paperless information systems (1978)
0.13
0.1252552 = product of:
0.2505104 = sum of:
0.2505104 = product of:
0.5010208 = sum of:
0.5010208 = weight(_text_:f.w in 3356) [ClassicSimilarity], result of:
0.5010208 = score(doc=3356,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
1.5903444 = fieldWeight in 3356, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.15625 = fieldNorm(doc=3356)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Lancaster, F.W.: Information retrieval systems : characteristics, testing and evaluation (1979)
0.10
0.100204155 = product of:
0.20040831 = sum of:
0.20040831 = product of:
0.40081662 = sum of:
0.40081662 = weight(_text_:f.w in 7270) [ClassicSimilarity], result of:
0.40081662 = score(doc=7270,freq=2.0), product of:
0.31503916 = queryWeight, product of:
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.043773204 = queryNorm
1.2722756 = fieldWeight in 7270, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1970778 = idf(docFreq=89, maxDocs=44218)
0.125 = fieldNorm(doc=7270)
0.5 = coord(1/2)
0.5 = coord(1/2)