-
Blair, D.C.; Maron, M.E.: ¬An evaluation of retrieval effectiveness for a full-text document-retrieval system (1985)
0.00
0.0033524164 = product of:
0.016762082 = sum of:
0.016762082 = product of:
0.05028624 = sum of:
0.05028624 = weight(_text_:29 in 1345) [ClassicSimilarity], result of:
0.05028624 = score(doc=1345,freq=2.0), product of:
0.12938589 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03678152 = queryNorm
0.38865322 = fieldWeight in 1345, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.078125 = fieldNorm(doc=1345)
0.33333334 = coord(1/3)
0.2 = coord(1/5)
- Footnote
- Vgl. auch : Salton, G.: Another look ... Comm. ACM 29(1986) S.S.648-656; Blair, D.C.: Full text retrieval ... Int. Class. 13(1986) S.18-23: Blair, D.C., M.E. Maron: Full-text information retrieval ... Inf. proc. man. 26(1990) S.437-447.
-
Blair, D.C.: STAIRS Redux : thoughts on the STAIRS evaluation, ten years after (1996)
0.00
0.0023255812 = product of:
0.011627905 = sum of:
0.011627905 = product of:
0.034883715 = sum of:
0.034883715 = weight(_text_:22 in 3002) [ClassicSimilarity], result of:
0.034883715 = score(doc=3002,freq=2.0), product of:
0.12880261 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03678152 = queryNorm
0.2708308 = fieldWeight in 3002, 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=3002)
0.33333334 = coord(1/3)
0.2 = coord(1/5)
- Source
- Journal of the American Society for Information Science. 47(1996) no.1, S.4-22
-
Blair, D.C.: Full text retrieval : Evaluation and implications (1986)
0.00
0.0020114498 = product of:
0.010057248 = sum of:
0.010057248 = product of:
0.030171745 = sum of:
0.030171745 = weight(_text_:29 in 2047) [ClassicSimilarity], result of:
0.030171745 = score(doc=2047,freq=2.0), product of:
0.12938589 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03678152 = queryNorm
0.23319192 = fieldWeight in 2047, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=2047)
0.33333334 = coord(1/3)
0.2 = coord(1/5)
- Footnote
- Vgl.: Blair, D.C., M.E. Maron: An evaluation ... Comm. ACM 28(1985) S.280-299; Salton, G.: Another look ... Comm. ACM 29(1986) S.648-656; Blair, D.C., M.E. Maron: Full-text information retrieval ... Inf. Proc. Man. 26(1990) S.437-447.