-
Bache, R.; Baillie, M.; Crestani, F.: Measuring the likelihood property of scoring functions in general retrieval models (2009)
0.01
0.014134051 = product of:
0.084804304 = sum of:
0.084804304 = weight(_text_:ranking in 2860) [ClassicSimilarity], result of:
0.084804304 = score(doc=2860,freq=2.0), product of:
0.20271951 = queryWeight, product of:
5.4090285 = idf(docFreq=537, maxDocs=44218)
0.03747799 = queryNorm
0.4183332 = fieldWeight in 2860, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.4090285 = idf(docFreq=537, maxDocs=44218)
0.0546875 = fieldNorm(doc=2860)
0.16666667 = coord(1/6)
- Abstract
- Although retrieval systems based on probabilistic models will rank the objects (e.g., documents) being retrieved according to the probability of some matching criterion (e.g., relevance), they rarely yield an actual probability, and the scoring function is interpreted to be purely ordinal within a given retrieval task. In this brief communication, it is shown that some scoring functions possess the likelihood property, which means that the scoring function indicates the likelihood of matching when compared to other retrieval tasks, which is potentially more useful than pure ranking although it cannot be interpreted as an actual probability. This property can be detected by using two modified effectiveness measures: entire precision and entire recall.
-
Crestani, F.: Combination of similarity measures for effective spoken document retrieval (2003)
0.00
0.0039852113 = product of:
0.023911266 = sum of:
0.023911266 = product of:
0.071733795 = sum of:
0.071733795 = weight(_text_:29 in 4690) [ClassicSimilarity], result of:
0.071733795 = score(doc=4690,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.5441145 = fieldWeight in 4690, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.109375 = fieldNorm(doc=4690)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Source
- Journal of information science. 29(2003) no.2, S.87-96
-
Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996)
0.00
0.0016925833 = product of:
0.0101555 = sum of:
0.0101555 = product of:
0.030466499 = sum of:
0.030466499 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
0.030466499 = score(doc=6967,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.23214069 = fieldWeight in 6967, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=6967)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- 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
-
Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003)
0.00
0.0016925833 = product of:
0.0101555 = sum of:
0.0101555 = product of:
0.030466499 = sum of:
0.030466499 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
0.030466499 = score(doc=1451,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.23214069 = fieldWeight in 1451, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=1451)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 22. 3.2003 19:27:36
-
Crestani, F.; Du, H.: Written versus spoken queries : a qualitative and quantitative comparative analysis (2006)
0.00
0.0016925833 = product of:
0.0101555 = sum of:
0.0101555 = product of:
0.030466499 = sum of:
0.030466499 = weight(_text_:22 in 5047) [ClassicSimilarity], result of:
0.030466499 = score(doc=5047,freq=2.0), product of:
0.13124153 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03747799 = queryNorm
0.23214069 = fieldWeight in 5047, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=5047)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 5. 6.2006 11:22:23
-
Sweeney, S.; Crestani, F.; Losada, D.E.: 'Show me more' : incremental length summarisation using novelty detection (2008)
0.00
0.0014232898 = product of:
0.008539738 = sum of:
0.008539738 = product of:
0.025619213 = sum of:
0.025619213 = weight(_text_:29 in 2054) [ClassicSimilarity], result of:
0.025619213 = score(doc=2054,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.19432661 = fieldWeight in 2054, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=2054)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 29. 7.2008 19:35:12
-
Crestani, F.; Mizzaro, S.; Scagnetto, I,: Mobile information retrieval (2017)
0.00
0.0014232898 = product of:
0.008539738 = sum of:
0.008539738 = product of:
0.025619213 = sum of:
0.025619213 = weight(_text_:29 in 4469) [ClassicSimilarity], result of:
0.025619213 = score(doc=4469,freq=2.0), product of:
0.13183585 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.03747799 = queryNorm
0.19432661 = fieldWeight in 4469, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=4469)
0.33333334 = coord(1/3)
0.16666667 = coord(1/6)
- Date
- 29. 9.2018 13:24:44
