Yongcheng, W.; Xiaoming, G.; Lixia, W.: Automatic indexing on subject of Chinese text (1998)
0.02
0.018526528 = product of:
0.037053056 = sum of:
0.037053056 = product of:
0.11115916 = sum of:
0.11115916 = weight(_text_:w in 3241) [ClassicSimilarity], result of:
0.11115916 = score(doc=3241,freq=4.0), product of:
0.18668456 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.048988212 = queryNorm
0.5954384 = fieldWeight in 3241, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.078125 = fieldNorm(doc=3241)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
