-
Chen, H.; Lynch, K.J.; Bashu, K.; Ng, T.D.: Generating, integrating, and activating thesauri for concept-based document retrieval (1993)
0.00
0.0026812535 = product of:
0.005362507 = sum of:
0.005362507 = product of:
0.010725014 = sum of:
0.010725014 = weight(_text_:s in 8549) [ClassicSimilarity], result of:
0.010725014 = score(doc=8549,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.19219826 = fieldWeight in 8549, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.125 = fieldNorm(doc=8549)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- IEEE expert. 8(1993), April, S.25-34
-
Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998)
0.00
0.00100547 = product of:
0.00201094 = sum of:
0.00201094 = product of:
0.00402188 = sum of:
0.00402188 = weight(_text_:s in 5202) [ClassicSimilarity], result of:
0.00402188 = score(doc=5202,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.072074346 = fieldWeight in 5202, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=5202)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 49(1998) no.3, S.206-216
-
Chen, H.; Ng, T.D.; Martinez, J.; Schatz, B.R.: ¬A concept space approach to addressing the vocabulary problem in scientific information retrieval : an experiment on the Worm Community System (1997)
0.00
8.3789177E-4 = product of:
0.0016757835 = sum of:
0.0016757835 = product of:
0.003351567 = sum of:
0.003351567 = weight(_text_:s in 6492) [ClassicSimilarity], result of:
0.003351567 = score(doc=6492,freq=2.0), product of:
0.055801827 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05132441 = queryNorm
0.060061958 = fieldWeight in 6492, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0390625 = fieldNorm(doc=6492)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 48(1997) no.1, S.17-31