-
Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973)
0.03
0.027572583 = product of:
0.055145167 = sum of:
0.055145167 = sum of:
0.0048520872 = weight(_text_:s in 5070) [ClassicSimilarity], result of:
0.0048520872 = score(doc=5070,freq=2.0), product of:
0.050455045 = queryWeight, product of:
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.04637411 = queryNorm
0.09616654 = fieldWeight in 5070, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.0625 = fieldNorm(doc=5070)
0.05029308 = weight(_text_:22 in 5070) [ClassicSimilarity], result of:
0.05029308 = score(doc=5070,freq=2.0), product of:
0.16244054 = queryWeight, product of:
3.5028281 = idf(docFreq=3635, maxDocs=44421)
0.04637411 = queryNorm
0.30960917 = fieldWeight in 5070, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5028281 = idf(docFreq=3635, maxDocs=44421)
0.0625 = fieldNorm(doc=5070)
0.5 = coord(1/2)
- Date
- 19. 3.1996 11:22:12
- Source
- Journal of documentation. 29(1973) no.3, S.251-257
-
Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996)
0.02
0.020679438 = product of:
0.041358877 = sum of:
0.041358877 = sum of:
0.0036390654 = weight(_text_:s in 36) [ClassicSimilarity], result of:
0.0036390654 = score(doc=36,freq=2.0), product of:
0.050455045 = queryWeight, product of:
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.04637411 = queryNorm
0.072124906 = fieldWeight in 36, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.046875 = fieldNorm(doc=36)
0.037719812 = weight(_text_:22 in 36) [ClassicSimilarity], result of:
0.037719812 = score(doc=36,freq=2.0), product of:
0.16244054 = queryWeight, product of:
3.5028281 = idf(docFreq=3635, maxDocs=44421)
0.04637411 = queryNorm
0.23220688 = fieldWeight in 36, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5028281 = idf(docFreq=3635, maxDocs=44421)
0.046875 = fieldNorm(doc=36)
0.5 = coord(1/2)
- Pages
- S.47-76
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
-
Rijsbergen, C.J. van: Foundations of evaluation (1974)
0.00
0.0030325546 = product of:
0.0060651093 = sum of:
0.0060651093 = product of:
0.012130219 = sum of:
0.012130219 = weight(_text_:s in 1077) [ClassicSimilarity], result of:
0.012130219 = score(doc=1077,freq=2.0), product of:
0.050455045 = queryWeight, product of:
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.04637411 = queryNorm
0.24041636 = fieldWeight in 1077, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.15625 = fieldNorm(doc=1077)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of documentation. 30(1974), S.365-373
-
Rijsbergen, C.J. van: Retrieval effectiveness (1981)
0.00
0.0024260436 = product of:
0.0048520872 = sum of:
0.0048520872 = product of:
0.0097041745 = sum of:
0.0097041745 = weight(_text_:s in 3215) [ClassicSimilarity], result of:
0.0097041745 = score(doc=3215,freq=2.0), product of:
0.050455045 = queryWeight, product of:
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.04637411 = queryNorm
0.19233309 = fieldWeight in 3215, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.125 = fieldNorm(doc=3215)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.32-43
-
Crestani, F.; Ruthven, I.; Sanderson, M.; Rijsbergen, C.J. van: ¬The troubles with using a logical model of IR on a large collection of documents : experimenting retrieval by logical imaging on TREC (1996)
0.00
0.0015162773 = product of:
0.0030325546 = sum of:
0.0030325546 = product of:
0.0060651093 = sum of:
0.0060651093 = weight(_text_:s in 591) [ClassicSimilarity], result of:
0.0060651093 = score(doc=591,freq=2.0), product of:
0.050455045 = queryWeight, product of:
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.04637411 = queryNorm
0.12020818 = fieldWeight in 591, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.078125 = fieldNorm(doc=591)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.509-526
-
Sparck Jones, K.; Rijsbergen, C.J. van: Progress in documentation : Information retrieval test collection (1976)
0.00
0.0010613941 = product of:
0.0021227882 = sum of:
0.0021227882 = product of:
0.0042455764 = sum of:
0.0042455764 = weight(_text_:s in 4229) [ClassicSimilarity], result of:
0.0042455764 = score(doc=4229,freq=2.0), product of:
0.050455045 = queryWeight, product of:
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.04637411 = queryNorm
0.084145725 = fieldWeight in 4229, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0880003 = idf(docFreq=40678, maxDocs=44421)
0.0546875 = fieldNorm(doc=4229)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of documentation. 32(1976) no.1, S.59-75