Yongcheng, W.; Xiaoming, G.; Lixia, W.: Automatic indexing on subject of Chinese text (1998)
0.07
0.06716907 = sum of:
0.028982166 = product of:
0.115928665 = sum of:
0.115928665 = weight(_text_:authors in 3241) [ClassicSimilarity], result of:
0.115928665 = score(doc=3241,freq=2.0), product of:
0.23016216 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.050487287 = queryNorm
0.50368255 = fieldWeight in 3241, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.078125 = fieldNorm(doc=3241)
0.25 = coord(1/4)
0.038186908 = product of:
0.114560716 = sum of:
0.114560716 = weight(_text_:w in 3241) [ClassicSimilarity], result of:
0.114560716 = score(doc=3241,freq=4.0), product of:
0.19239725 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.050487287 = 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)
- Abstract
- Outlines the underlying ideas, the basic algorithm and structure of CSAIS 2.1, an automatic indexing system for the subjects of Chinese documents, developed by the authors in 1993