-
Rousseau, R.: Egghe's g-index is not a proper concentration measure (2015)
0.02
0.01974048 = product of:
0.03948096 = sum of:
0.03948096 = product of:
0.118442886 = sum of:
0.118442886 = weight(_text_:g in 1864) [ClassicSimilarity], result of:
0.118442886 = score(doc=1864,freq=4.0), product of:
0.16818537 = queryWeight, product of:
3.7559474 = idf(docFreq=2809, maxDocs=44218)
0.044778414 = queryNorm
0.70424014 = fieldWeight in 1864, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.7559474 = idf(docFreq=2809, maxDocs=44218)
0.09375 = fieldNorm(doc=1864)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Object
- g-index
-
Egghe, L.; Guns, R.; Rousseau, R.; Leuven, K.U.: Erratum (2012)
0.01
0.010111429 = product of:
0.020222858 = sum of:
0.020222858 = product of:
0.060668573 = sum of:
0.060668573 = weight(_text_:22 in 4992) [ClassicSimilarity], result of:
0.060668573 = score(doc=4992,freq=2.0), product of:
0.15680638 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044778414 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 14. 2.2012 12:53:22
-
Zhang, L.; Rousseau, R.; Glänzel, W.: Document-type country profiles (2011)
0.01
0.009579573 = product of:
0.019159146 = sum of:
0.019159146 = product of:
0.057477433 = sum of:
0.057477433 = weight(_text_:w in 4487) [ClassicSimilarity], result of:
0.057477433 = score(doc=4487,freq=2.0), product of:
0.17064184 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.044778414 = queryNorm
0.33683082 = fieldWeight in 4487, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0625 = fieldNorm(doc=4487)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Egghe, L.; Liang, L.; Rousseau, R.: Fundamental properties of rhythm sequences (2008)
0.01
0.008382126 = product of:
0.016764252 = sum of:
0.016764252 = product of:
0.050292753 = sum of:
0.050292753 = weight(_text_:w in 1965) [ClassicSimilarity], result of:
0.050292753 = score(doc=1965,freq=2.0), product of:
0.17064184 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.044778414 = queryNorm
0.29472697 = fieldWeight in 1965, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0546875 = fieldNorm(doc=1965)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- Fundamental mathematical properties of rhythm sequences are studied. In particular, a set of three axioms for valid rhythm indicators is proposed, and it is shown that the R-indicator satisfies only two out of three but that the R-indicator satisfies all three. This fills a critical, logical gap in the study of these indicator sequences. Matrices leading to a constant R-sequence are called baseline matrices. They are characterized as matrices with constant w-year diachronous impact factors. The relation with classical impact factors is clarified. Using regression analysis matrices with a rhythm sequence that is on average equal to 1 (smaller than 1, larger than 1) are characterized.
-
Egghe, L.; Rousseau, R.; Hooydonk, G. van: Methods for accrediting publications to authors or countries : consequences for evaluation studies (2000)
0.01
0.006979314 = product of:
0.013958628 = sum of:
0.013958628 = product of:
0.041875884 = sum of:
0.041875884 = weight(_text_:g in 4384) [ClassicSimilarity], result of:
0.041875884 = score(doc=4384,freq=2.0), product of:
0.16818537 = queryWeight, product of:
3.7559474 = idf(docFreq=2809, maxDocs=44218)
0.044778414 = queryNorm
0.24898648 = fieldWeight in 4384, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.7559474 = idf(docFreq=2809, maxDocs=44218)
0.046875 = fieldNorm(doc=4384)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Rousseau, R.; Jin, B.: ¬The age-dependent h-type AR**2-index : basic properties and a case study (2008)
0.01
0.006979314 = product of:
0.013958628 = sum of:
0.013958628 = product of:
0.041875884 = sum of:
0.041875884 = weight(_text_:g in 2638) [ClassicSimilarity], result of:
0.041875884 = score(doc=2638,freq=2.0), product of:
0.16818537 = queryWeight, product of:
3.7559474 = idf(docFreq=2809, maxDocs=44218)
0.044778414 = queryNorm
0.24898648 = fieldWeight in 2638, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.7559474 = idf(docFreq=2809, maxDocs=44218)
0.046875 = fieldNorm(doc=2638)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- Hirsch-type indices are studied with special attention to the AR**2-index introduced by Jin. The article consists of two parts: a theoretical part and a practical illustration. In the theoretical part, we recall the definition of the AR**2-index and show that an alternative definition, the so-called AR**2,1, does not have the properties expected for this type of index. A practical example shows the existence of some of these mathematical properties and illustrates the difference between different h-type indices. Clearly the h-index itself is the most robust of all. It is shown that excluding so-called non-WoS source articles may have a significant influence on the R-and, especially, the g-index.
-
Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996)
0.01
0.006066857 = product of:
0.012133714 = sum of:
0.012133714 = product of:
0.03640114 = sum of:
0.03640114 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
0.03640114 = score(doc=7659,freq=2.0), product of:
0.15680638 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044778414 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- 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)
0.01
0.006066857 = product of:
0.012133714 = sum of:
0.012133714 = product of:
0.03640114 = sum of:
0.03640114 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
0.03640114 = score(doc=5270,freq=2.0), product of:
0.15680638 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044778414 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:26:24
-
Zhang, L.; Rousseau, R.; Glänzel, W.: Diversity of references as an indicator of the interdisciplinarity of journals : taking similarity between subject fields into account (2016)
0.01
0.0059872326 = product of:
0.011974465 = sum of:
0.011974465 = product of:
0.035923395 = sum of:
0.035923395 = weight(_text_:w in 2902) [ClassicSimilarity], result of:
0.035923395 = score(doc=2902,freq=2.0), product of:
0.17064184 = queryWeight, product of:
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.044778414 = queryNorm
0.21051927 = fieldWeight in 2902, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.8108058 = idf(docFreq=2659, maxDocs=44218)
0.0390625 = fieldNorm(doc=2902)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.00
0.0040445714 = product of:
0.008089143 = sum of:
0.008089143 = product of:
0.024267428 = sum of:
0.024267428 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.024267428 = score(doc=5171,freq=2.0), product of:
0.15680638 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044778414 = 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)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 9. 7.2006 10:22:35
