Sieverts, E.G.; Hofstede, M.; Haak, P.H.; Nieuwenhuysen, P.; Scheepsma, G.M.A.; Veeger, L.; Vis, G.C.: Software for information storage and retrieval tested, evaluated and compared : Pt. 2: Classical retrieval systems (1991)
0.03
0.033904158 = product of:
0.101712465 = sum of:
0.101712465 = weight(_text_:electronic in 5047) [ClassicSimilarity], result of:
0.101712465 = score(doc=5047,freq=2.0), product of:
0.19623034 = queryWeight, product of:
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.05019314 = queryNorm
0.518332 = fieldWeight in 5047, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.09375 = fieldNorm(doc=5047)
0.33333334 = coord(1/3)
- Source
- Electronic library. 9(1991), S.301-316