Mandala, R.; Tokunaga, T.; Tanaka, H.: Query expansion using heterogeneous thesauri (2000)
0.01
0.006262043 = product of:
0.050096344 = sum of:
0.050096344 = weight(_text_:retrieval in 1277) [ClassicSimilarity], result of:
0.050096344 = score(doc=1277,freq=2.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.40105087 = fieldWeight in 1277, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=1277)
0.125 = coord(1/8)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval