Yongcheng, W.; Xiaoming, G.; Lixia, W.: Automatic indexing on subject of Chinese text (1998)
0.02
0.016079074 = product of:
0.032158148 = sum of:
0.032158148 = product of:
0.064316295 = sum of:
0.064316295 = weight(_text_:subject in 3241) [ClassicSimilarity], result of:
0.064316295 = score(doc=3241,freq=2.0), product of:
0.16275941 = queryWeight, product of:
3.576596 = idf(docFreq=3361, maxDocs=44218)
0.04550679 = queryNorm
0.39516178 = fieldWeight in 3241, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.576596 = idf(docFreq=3361, maxDocs=44218)
0.078125 = fieldNorm(doc=3241)
0.5 = coord(1/2)
0.5 = coord(1/2)