-
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)
0.01
0.013038859 = product of:
0.026077718 = sum of:
0.026077718 = product of:
0.039116576 = sum of:
0.0040997346 = weight(_text_:s in 5202) [ClassicSimilarity], result of:
0.0040997346 = score(doc=5202,freq=2.0), product of:
0.05688202 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05231793 = 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)
0.035016842 = weight(_text_:j in 5202) [ClassicSimilarity], result of:
0.035016842 = score(doc=5202,freq=2.0), product of:
0.16624004 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.05231793 = queryNorm
0.21064025 = fieldWeight in 5202, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.046875 = fieldNorm(doc=5202)
0.6666667 = coord(2/3)
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)
0.01
0.010865716 = product of:
0.021731433 = sum of:
0.021731433 = product of:
0.032597147 = sum of:
0.0034164456 = weight(_text_:s in 6492) [ClassicSimilarity], result of:
0.0034164456 = score(doc=6492,freq=2.0), product of:
0.05688202 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05231793 = 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)
0.029180702 = weight(_text_:j in 6492) [ClassicSimilarity], result of:
0.029180702 = score(doc=6492,freq=2.0), product of:
0.16624004 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.05231793 = queryNorm
0.17553353 = fieldWeight in 6492, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0390625 = fieldNorm(doc=6492)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 48(1997) no.1, S.17-31
-
Schatz, B.R.; Johnson, E.H.; Cochrane, P.A.; Chen, H.: Interactive term suggestion for users of digital libraries : using thesauri and co-occurrence lists for information retrieval (1996)
0.00
0.0011388152 = product of:
0.0022776304 = sum of:
0.0022776304 = product of:
0.006832891 = sum of:
0.006832891 = weight(_text_:s in 6417) [ClassicSimilarity], result of:
0.006832891 = score(doc=6417,freq=2.0), product of:
0.05688202 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05231793 = queryNorm
0.120123915 = fieldWeight in 6417, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.078125 = fieldNorm(doc=6417)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Pages
- S.126-133
-
Ramsey, M.C.; Chen, H.; Zhu, B.; Schatz, B.R.: ¬A collection of visual thesauri for browsing large collections of geographic images (1999)
0.00
7.971706E-4 = product of:
0.0015943412 = sum of:
0.0015943412 = product of:
0.0047830236 = sum of:
0.0047830236 = weight(_text_:s in 3922) [ClassicSimilarity], result of:
0.0047830236 = score(doc=3922,freq=2.0), product of:
0.05688202 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05231793 = queryNorm
0.08408674 = fieldWeight in 3922, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=3922)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 50(1999) no.9, S.826-834
-
Chen, H.; Houston, A.L.; Sewell, R.R.; Schatz, B.R.: Internet browsing and searching : user evaluations of category map and concept space techniques (1998)
0.00
4.5552605E-4 = product of:
9.110521E-4 = sum of:
9.110521E-4 = product of:
0.0027331563 = sum of:
0.0027331563 = weight(_text_:s in 869) [ClassicSimilarity], result of:
0.0027331563 = score(doc=869,freq=2.0), product of:
0.05688202 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.05231793 = queryNorm
0.048049565 = fieldWeight in 869, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.03125 = fieldNorm(doc=869)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science. 49(1998) no.7, S.582-603