Zhang, W.; Yoshida, T.; Tang, X.: ¬A comparative study of TF*IDF, LSI and multi-words for text classification (2011)
0.01
0.01216144 = product of:
0.04256504 = sum of:
0.017186679 = product of:
0.034373358 = sum of:
0.034373358 = weight(_text_:w in 1165) [ClassicSimilarity], result of:
0.034373358 = score(doc=1165,freq=2.0), product of:
0.13606577 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.03570525 = queryNorm
0.2526231 = fieldWeight in 1165, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.046875 = fieldNorm(doc=1165)
0.5 = coord(1/2)
0.02537836 = weight(_text_:u in 1165) [ClassicSimilarity], result of:
0.02537836 = score(doc=1165,freq=2.0), product of:
0.11691485 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.03570525 = queryNorm
0.21706703 = fieldWeight in 1165, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.046875 = fieldNorm(doc=1165)
0.2857143 = coord(2/7)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval