Shibata, N.; Kajikawa, Y.; Takeda, Y.; Matsushima, K.: Comparative study on methods of detecting research fronts using different types of citation (2009)
0.01
0.0094812 = product of:
0.0379248 = sum of:
0.0379248 = weight(_text_:22 in 2743) [ClassicSimilarity], result of:
0.0379248 = score(doc=2743,freq=2.0), product of:
0.19604386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.055983268 = queryNorm
0.19345059 = fieldWeight in 2743, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2743)
0.25 = coord(1/4)
- Date
- 22. 3.2009 17:52:50