Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998)
0.02
0.016601244 = product of:
0.05810435 = sum of:
0.039822206 = weight(_text_:computer in 1319) [ClassicSimilarity], result of:
0.039822206 = score(doc=1319,freq=2.0), product of:
0.14089422 = queryWeight, product of:
3.6545093 = idf(docFreq=3109, maxDocs=44218)
0.038553525 = queryNorm
0.28263903 = fieldWeight in 1319, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.6545093 = idf(docFreq=3109, maxDocs=44218)
0.0546875 = fieldNorm(doc=1319)
0.018282145 = product of:
0.03656429 = sum of:
0.03656429 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
0.03656429 = score(doc=1319,freq=2.0), product of:
0.13500787 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.038553525 = queryNorm
0.2708308 = fieldWeight in 1319, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1319)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Date
- 1. 8.1996 22:08:06
- Source
- Computer networks and ISDN systems. 30(1998) nos.1/7, S.621-623