-
Robertson, S.E.: ¬The methodology of information retrieval experiment (1981)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 3146) [ClassicSimilarity], result of:
0.010725014 = score(doc=3146,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 3146, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=3146)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.9-31
-
Bovey, J.D.; Robertson, S.E.: ¬An algorithm for weighted searching on a Boolean system (1984)
0.00
0.0023460968 = product of:
0.0046921936 = sum of:
0.0046921936 = product of:
0.009384387 = sum of:
0.009384387 = weight(_text_:s in 788) [ClassicSimilarity], result of:
0.009384387 = score(doc=788,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.16817348 = fieldWeight in 788, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=788)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information technology: research and development. 3(1984) no.1, S.84-87
-
Robertson, S.E.: Some recent theories and models in information retrieval (1980)
0.00
0.00201094 = product of:
0.00402188 = sum of:
0.00402188 = product of:
0.00804376 = sum of:
0.00804376 = weight(_text_:s in 1326) [ClassicSimilarity], result of:
0.00804376 = score(doc=1326,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.14414869 = fieldWeight in 1326, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=1326)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.131-136
-
Robertson, S.E.: On relevance weight estimation and query expansion (1986)
0.00
0.0016757835 = product of:
0.003351567 = sum of:
0.003351567 = product of:
0.006703134 = sum of:
0.006703134 = weight(_text_:s in 3875) [ClassicSimilarity], result of:
0.006703134 = score(doc=3875,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.120123915 = fieldWeight in 3875, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.078125 = fieldNorm(doc=3875)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of documentation. 42(1986), S.182-188