Yu, C.T.; Salton, G.: Precision weighting : an effective automatic indexing method (1976)
0.05
0.052015435 = product of:
0.20806174 = sum of:
0.052015435 = weight(_text_:23 in 5490) [ClassicSimilarity], result of:
0.052015435 = score(doc=5490,freq=2.0), product of:
0.08209789 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.022906395 = queryNorm
0.63357824 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.052015435 = weight(_text_:23 in 5490) [ClassicSimilarity], result of:
0.052015435 = score(doc=5490,freq=2.0), product of:
0.08209789 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.022906395 = queryNorm
0.63357824 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.052015435 = weight(_text_:23 in 5490) [ClassicSimilarity], result of:
0.052015435 = score(doc=5490,freq=2.0), product of:
0.08209789 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.022906395 = queryNorm
0.63357824 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.052015435 = weight(_text_:23 in 5490) [ClassicSimilarity], result of:
0.052015435 = score(doc=5490,freq=2.0), product of:
0.08209789 = queryWeight, product of:
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.022906395 = queryNorm
0.63357824 = fieldWeight in 5490, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5840597 = idf(docFreq=3336, maxDocs=44218)
0.125 = fieldNorm(doc=5490)
0.25 = coord(4/16)
- Source
- Journal of the Association for Computing Machinery. 23(1976), S.76-88