Alberico, R.; Micco, M.: Expert systems for reference and information retrieval (1990)
0.02
0.023784807 = product of:
0.10703163 = sum of:
0.018678451 = weight(_text_:of in 8875) [ClassicSimilarity], result of:
0.018678451 = score(doc=8875,freq=4.0), product of:
0.06370452 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.040738113 = queryNorm
0.2932045 = fieldWeight in 8875, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.09375 = fieldNorm(doc=8875)
0.08835318 = weight(_text_:systems in 8875) [ClassicSimilarity], result of:
0.08835318 = score(doc=8875,freq=6.0), product of:
0.12519532 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.040738113 = queryNorm
0.7057227 = fieldWeight in 8875, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.09375 = fieldNorm(doc=8875)
0.22222222 = coord(2/9)
- COMPASS
- Information services / Use of / Expert systems
- Subject
- Information services / Use of / Expert systems
