-
Rousseau, R.: Citation data as a proxy for quality or scientific influence are at best PAC (probably approximately correct) (2016)
0.03
0.026153712 = product of:
0.10461485 = sum of:
0.10461485 = weight(_text_:communication in 3210) [ClassicSimilarity], result of:
0.10461485 = score(doc=3210,freq=4.0), product of:
0.19382635 = queryWeight, product of:
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.04488925 = queryNorm
0.5397349 = fieldWeight in 3210, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.0625 = fieldNorm(doc=3210)
0.25 = coord(1/4)
- Abstract
- In this communication I give a brief introduction to Valiant's probably approximately correct (PAC) theory, provide an extension that goes beyond Valiant's ideas (and beyond the domain for which this theory was meant), and come to an interpretation in terms of research evaluation. As such, PAC provides a framework for a theory of research evaluation.
- Series
- Brief communication
-
Liu, Y.; Rousseau, R.: Towards a representation of diffusion and interaction of scientific ideas : the case of fiber optics communication (2012)
0.02
0.022884497 = product of:
0.09153799 = sum of:
0.09153799 = weight(_text_:communication in 2723) [ClassicSimilarity], result of:
0.09153799 = score(doc=2723,freq=4.0), product of:
0.19382635 = queryWeight, product of:
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.04488925 = queryNorm
0.47226804 = fieldWeight in 2723, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.0546875 = fieldNorm(doc=2723)
0.25 = coord(1/4)
- Abstract
- The research question studied in this contribution is how to find an adequate representation to describe the diffusion of scientific ideas over time. We claim that citation data, at least of articles that act as concept symbols, can be considered to contain this information. As a case study we show how the founding article by Nobel Prize winner Kao illustrates the evolution of the field of fiber optics communication. We use a continuous description of discrete citation data in order to accentuate turning points and breakthroughs in the history of this field. Applying the principles explained in this contribution informetrics may reveal the trajectories along which science is developing.
-
Rousseau, R.: Timelines in citation research (2006)
0.02
0.018493466 = product of:
0.073973864 = sum of:
0.073973864 = weight(_text_:communication in 1746) [ClassicSimilarity], result of:
0.073973864 = score(doc=1746,freq=2.0), product of:
0.19382635 = queryWeight, product of:
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.04488925 = queryNorm
0.3816502 = fieldWeight in 1746, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.0625 = fieldNorm(doc=1746)
0.25 = coord(1/4)
- Series
- Brief communication
-
Rousseau, R.: Basic properties of both percentile rank scores and the I3 indicator (2012)
0.02
0.016181784 = product of:
0.064727135 = sum of:
0.064727135 = weight(_text_:communication in 4993) [ClassicSimilarity], result of:
0.064727135 = score(doc=4993,freq=2.0), product of:
0.19382635 = queryWeight, product of:
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.04488925 = queryNorm
0.33394393 = fieldWeight in 4993, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.0546875 = fieldNorm(doc=4993)
0.25 = coord(1/4)
- Series
- Brief communication
-
Rousseau, R.; Ding, J.: Does international collaboration yield a higher citation potential for US scientists publishing in highly visible interdisciplinary Journals? (2016)
0.02
0.016181784 = product of:
0.064727135 = sum of:
0.064727135 = weight(_text_:communication in 2860) [ClassicSimilarity], result of:
0.064727135 = score(doc=2860,freq=2.0), product of:
0.19382635 = queryWeight, product of:
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.04488925 = queryNorm
0.33394393 = fieldWeight in 2860, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.0546875 = fieldNorm(doc=2860)
0.25 = coord(1/4)
- Series
- Brief communication
-
Colebunders, R.; Kenyon, C.; Rousseau, R.: Increase in numbers and proportions of review articles in Tropical Medicine, Infectious Diseases, and oncology (2014)
0.01
0.0138701 = product of:
0.0554804 = sum of:
0.0554804 = weight(_text_:communication in 1189) [ClassicSimilarity], result of:
0.0554804 = score(doc=1189,freq=2.0), product of:
0.19382635 = queryWeight, product of:
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.04488925 = queryNorm
0.28623766 = fieldWeight in 1189, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.317879 = idf(docFreq=1601, maxDocs=44218)
0.046875 = fieldNorm(doc=1189)
0.25 = coord(1/4)
- Series
- Brief communication
-
Egghe, L.; Guns, R.; Rousseau, R.; Leuven, K.U.: Erratum (2012)
0.01
0.007602342 = product of:
0.030409368 = sum of:
0.030409368 = product of:
0.060818736 = sum of:
0.060818736 = weight(_text_:22 in 4992) [ClassicSimilarity], result of:
0.060818736 = score(doc=4992,freq=2.0), product of:
0.1571945 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04488925 = queryNorm
0.38690117 = fieldWeight in 4992, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=4992)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 14. 2.2012 12:53:22
-
Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996)
0.00
0.0045614047 = product of:
0.018245619 = sum of:
0.018245619 = product of:
0.036491238 = sum of:
0.036491238 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
0.036491238 = score(doc=7659,freq=2.0), product of:
0.1571945 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04488925 = queryNorm
0.23214069 = fieldWeight in 7659, 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=7659)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Source
- Journal of information science. 22(1996) no.3, S.165-170
-
Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006)
0.00
0.0045614047 = product of:
0.018245619 = sum of:
0.018245619 = product of:
0.036491238 = sum of:
0.036491238 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
0.036491238 = score(doc=5270,freq=2.0), product of:
0.1571945 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04488925 = queryNorm
0.23214069 = fieldWeight in 5270, 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=5270)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 22. 7.2006 15:26:24
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.00
0.0030409365 = product of:
0.012163746 = sum of:
0.012163746 = product of:
0.024327492 = sum of:
0.024327492 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.024327492 = score(doc=5171,freq=2.0), product of:
0.1571945 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04488925 = queryNorm
0.15476047 = fieldWeight in 5171, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Date
- 9. 7.2006 10:22:35