Salton, G.; Waldstein, R.H.: Term relevance weights in on-line information retrieval (1978)
0.01
0.0067306077 = product of:
0.02692243 = sum of:
0.02692243 = weight(_text_:information in 5484) [ClassicSimilarity], result of:
0.02692243 = score(doc=5484,freq=4.0), product of:
0.06134496 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.034944877 = queryNorm
0.43886948 = fieldWeight in 5484, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.125 = fieldNorm(doc=5484)
0.25 = coord(1/4)
- Source
- Information processing and management. 14(1978), S.20-35