-
Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998)
0.04
0.04053431 = product of:
0.08106862 = sum of:
0.08106862 = sum of:
0.037817024 = weight(_text_:u in 1319) [ClassicSimilarity], result of:
0.037817024 = score(doc=1319,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.25324488 = fieldWeight in 1319, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=1319)
0.043251596 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
0.043251596 = score(doc=1319,freq=2.0), product of:
0.1596997 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045604642 = 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)
- Date
- 1. 8.1996 22:08:06
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995)
0.03
0.02895308 = product of:
0.05790616 = sum of:
0.05790616 = sum of:
0.027012162 = weight(_text_:u in 5697) [ClassicSimilarity], result of:
0.027012162 = score(doc=5697,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.1808892 = fieldWeight in 5697, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0390625 = fieldNorm(doc=5697)
0.030893998 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
0.030893998 = score(doc=5697,freq=2.0), product of:
0.1596997 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045604642 = queryNorm
0.19345059 = fieldWeight in 5697, 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=5697)
0.5 = coord(1/2)
- Date
- 22. 2.1996 13:14:10
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Srinivasan, P.: Query expansion and MEDLINE (1996)
0.01
0.010804865 = product of:
0.02160973 = sum of:
0.02160973 = product of:
0.04321946 = sum of:
0.04321946 = weight(_text_:u in 8453) [ClassicSimilarity], result of:
0.04321946 = score(doc=8453,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.28942272 = fieldWeight in 8453, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0625 = fieldNorm(doc=8453)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992)
0.01
0.009454256 = product of:
0.018908512 = sum of:
0.018908512 = product of:
0.037817024 = sum of:
0.037817024 = weight(_text_:u in 2731) [ClassicSimilarity], result of:
0.037817024 = score(doc=2731,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.25324488 = fieldWeight in 2731, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=2731)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Robertson, S.E.: OKAPI at TREC-3 (1995)
0.01
0.009454256 = product of:
0.018908512 = sum of:
0.018908512 = product of:
0.037817024 = sum of:
0.037817024 = weight(_text_:u in 5694) [ClassicSimilarity], result of:
0.037817024 = score(doc=5694,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.25324488 = fieldWeight in 5694, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=5694)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Beaulieu, M.; Jones, S.: Interactive searching and interface issues in the Okapi best match probabilistic retrieval system (1998)
0.01
0.009454256 = product of:
0.018908512 = sum of:
0.018908512 = product of:
0.037817024 = sum of:
0.037817024 = weight(_text_:u in 430) [ClassicSimilarity], result of:
0.037817024 = score(doc=430,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.25324488 = fieldWeight in 430, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0546875 = fieldNorm(doc=430)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Kwok, K.L.: ¬A network approach to probabilistic information retrieval (1995)
0.01
0.008103648 = product of:
0.016207296 = sum of:
0.016207296 = product of:
0.032414593 = sum of:
0.032414593 = weight(_text_:u in 5696) [ClassicSimilarity], result of:
0.032414593 = score(doc=5696,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.21706703 = fieldWeight in 5696, 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=5696)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Chen, H.; Zhang, Y.; Houston, A.L.: Semantic indexing and searching using a Hopfield net (1998)
0.01
0.008103648 = product of:
0.016207296 = sum of:
0.016207296 = product of:
0.032414593 = sum of:
0.032414593 = weight(_text_:u in 5704) [ClassicSimilarity], result of:
0.032414593 = score(doc=5704,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.21706703 = fieldWeight in 5704, 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=5704)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval