-
Egghe, L.; Guns, R.; Rousseau, R.; Leuven, K.U.: Erratum (2012)
0.02
0.017758194 = product of:
0.03551639 = sum of:
0.03551639 = product of:
0.07103278 = sum of:
0.07103278 = weight(_text_:22 in 4992) [ClassicSimilarity], result of:
0.07103278 = score(doc=4992,freq=2.0), product of:
0.18359412 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052428056 = 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)
0.5 = coord(1/2)
- Date
- 14. 2.2012 12:53:22
-
Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996)
0.01
0.010654917 = product of:
0.021309834 = sum of:
0.021309834 = product of:
0.042619668 = sum of:
0.042619668 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
0.042619668 = score(doc=7659,freq=2.0), product of:
0.18359412 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052428056 = 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)
0.5 = 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
0.010654917 = product of:
0.021309834 = sum of:
0.021309834 = product of:
0.042619668 = sum of:
0.042619668 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
0.042619668 = score(doc=5270,freq=2.0), product of:
0.18359412 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052428056 = 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)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:26:24
-
Egghe, L.; Liang, L.; Rousseau, R.: Fundamental properties of rhythm sequences (2008)
0.01
0.0105950255 = product of:
0.021190051 = sum of:
0.021190051 = product of:
0.042380102 = sum of:
0.042380102 = weight(_text_:1 in 1965) [ClassicSimilarity], result of:
0.042380102 = score(doc=1965,freq=6.0), product of:
0.12878966 = queryWeight, product of:
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.052428056 = queryNorm
0.32906446 = fieldWeight in 1965, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.0546875 = fieldNorm(doc=1965)
0.5 = coord(1/2)
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.
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.01
0.007103278 = product of:
0.014206556 = sum of:
0.014206556 = product of:
0.028413111 = sum of:
0.028413111 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.028413111 = score(doc=5171,freq=2.0), product of:
0.18359412 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052428056 = 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)
0.5 = coord(1/2)
- Date
- 9. 7.2006 10:22:35
-
Frandsen, T.F.; Rousseau, R.; Rowlands, I.: Diffusion factors (2006)
0.01
0.0061791437 = product of:
0.012358287 = sum of:
0.012358287 = product of:
0.024716575 = sum of:
0.024716575 = weight(_text_:1 in 5587) [ClassicSimilarity], result of:
0.024716575 = score(doc=5587,freq=4.0), product of:
0.12878966 = queryWeight, product of:
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.052428056 = queryNorm
0.19191428 = fieldWeight in 5587, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.0390625 = fieldNorm(doc=5587)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 1. 8.2006 11:25:10
- Source
- Journal of documentation. 62(2006) no.1, S.58-72
-
Frandsen, T.F.; Rousseau, R.: Article impact calculated over arbitrary periods (2005)
0.01
0.005243177 = product of:
0.010486354 = sum of:
0.010486354 = product of:
0.020972708 = sum of:
0.020972708 = weight(_text_:1 in 3264) [ClassicSimilarity], result of:
0.020972708 = score(doc=3264,freq=2.0), product of:
0.12878966 = queryWeight, product of:
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.052428056 = queryNorm
0.16284466 = fieldWeight in 3264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.046875 = fieldNorm(doc=3264)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 56(2005) no.1, S.58-62
-
Liu, Y.; Rafols, I.; Rousseau, R.: ¬A framework for knowledge integration and diffusion (2012)
0.01
0.005243177 = product of:
0.010486354 = sum of:
0.010486354 = product of:
0.020972708 = sum of:
0.020972708 = weight(_text_:1 in 297) [ClassicSimilarity], result of:
0.020972708 = score(doc=297,freq=2.0), product of:
0.12878966 = queryWeight, product of:
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.052428056 = queryNorm
0.16284466 = fieldWeight in 297, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.046875 = fieldNorm(doc=297)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of documentation. 68(2012) no.1, S.31-44
-
Colebunders, R.; Kenyon, C.; Rousseau, R.: Increase in numbers and proportions of review articles in Tropical Medicine, Infectious Diseases, and oncology (2014)
0.01
0.005243177 = product of:
0.010486354 = sum of:
0.010486354 = product of:
0.020972708 = sum of:
0.020972708 = weight(_text_:1 in 1189) [ClassicSimilarity], result of:
0.020972708 = score(doc=1189,freq=2.0), product of:
0.12878966 = queryWeight, product of:
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.052428056 = queryNorm
0.16284466 = fieldWeight in 1189, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.046875 = fieldNorm(doc=1189)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the Association for Information Science and Technology. 65(2014) no.1, S.201-205
-
Rousseau, R.; Zuccala, A.: ¬A classification of author co-citations : definitions and search strategies (2004)
0.00
0.0043693143 = product of:
0.008738629 = sum of:
0.008738629 = product of:
0.017477257 = sum of:
0.017477257 = weight(_text_:1 in 2266) [ClassicSimilarity], result of:
0.017477257 = score(doc=2266,freq=2.0), product of:
0.12878966 = queryWeight, product of:
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.052428056 = queryNorm
0.13570388 = fieldWeight in 2266, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4565027 = idf(docFreq=10304, maxDocs=44218)
0.0390625 = fieldNorm(doc=2266)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- The term author co-citation is defined and classified according to four distinct forms: the pure first-author co-citation, the pure author co-citation, the general author co-citation, and the special co-authorlco-citation. Each form can be used to obtain one count in an author co-citation study, based an a binary counting rule, which either recognizes the co-citedness of two authors in a given reference list (1) or does not (0). Most studies using author co-citations have relied solely an first-author cocitation counts as evidence of an author's oeuvre or body of work contributed to a research field. In this article, we argue that an author's contribution to a selected field of study should not be limited, but should be based an his/her complete list of publications, regardless of author ranking. We discuss the implications associated with using each co-citation form and show where simple first-author co-citations fit within our classification scheme. Examples are given to substantiate each author co-citation form defined in our classification, including a set of sample Dialog(TM) searches using references extracted from the SciSearch database.