-
Harman, D.: Overview of the Second Text Retrieval Conference : TREC-2 (1995)
0.00
0.001203219 = product of:
0.002406438 = sum of:
0.002406438 = product of:
0.004812876 = sum of:
0.004812876 = weight(_text_:s in 1915) [ClassicSimilarity], result of:
0.004812876 = score(doc=1915,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.09609913 = fieldWeight in 1915, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0625 = fieldNorm(doc=1915)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 31(1995) no.3, S.271-289
-
Smeaton, A.F.; Harman, D.: ¬The TREC experiments and their impact on Europe (1997)
0.00
0.001203219 = product of:
0.002406438 = sum of:
0.002406438 = product of:
0.004812876 = sum of:
0.004812876 = weight(_text_:s in 7702) [ClassicSimilarity], result of:
0.004812876 = score(doc=7702,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.09609913 = fieldWeight in 7702, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0625 = fieldNorm(doc=7702)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of information science. 23(1997) no.2, S.169-174
-
Harman, D.: Overview of the first Text Retrieval Conference (1993)
0.00
0.0010528166 = product of:
0.0021056333 = sum of:
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = weight(_text_:s in 548) [ClassicSimilarity], result of:
0.0042112665 = score(doc=548,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.08408674 = fieldWeight in 548, 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=548)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.181-187
-
Harman, D.: ¬The Text REtrieval Conferences (TRECs) : providing a test-bed for information retrieval systems (1998)
0.00
0.0010528166 = product of:
0.0021056333 = sum of:
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = weight(_text_:s in 1314) [ClassicSimilarity], result of:
0.0042112665 = score(doc=1314,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.08408674 = fieldWeight in 1314, 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=1314)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Bulletin of the American Society for Information Science. 24(1998), April/May, S.11-13