Zobrazeno 1 - 10
of 14
pro vyhledávání: '"van Eck, N.J.P."'
Publikováno v:
Scientometrics
Scientometrics, 111(2), 1053-1070
Scientometrics, 111(2), 1053-1070
Clustering scientific publications in an important problem in bibliometric research. We demonstrate how two software tools, CitNetExplorer and VOSviewer, can be used to cluster publications and to analyze the resulting clustering solutions. CitNetExp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3befecdd507443eee20d07a314362fe6
https://doi.org/10.1007/s11192-017-2300-7
https://doi.org/10.1007/s11192-017-2300-7
Autor:
Waltman, L., van Eck, N.J.P.
The h-index is a popular bibliometric performance indicator. We discuss a fundamental problem of the h-index. We refer to this problem as the problem of inconsistency. There turns out to be a very simple bibliometric indicator that has similar proper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::5913b0a117b5cdb8e4c3ba6e59aa9355
https://repub.eur.nl/pub/16556/ERS-2009-043-LIS.pdf
https://repub.eur.nl/pub/16556/ERS-2009-043-LIS.pdf
Autor:
Waltman, L., van Eck, N.J.P.
In a recent paper, Egghe [Egghe, L. (in press). Mathematical derivation of the impact factor distribution. Journal of Informetrics] provides a mathematical analysis of the rank-order distribution of journal impact factors. We point out that Egghe’s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::a5a189491fb4f73a2c849ef745c3c48d
https://repub.eur.nl/pub/15184/ERS-2009-016-LIS.pdf
https://repub.eur.nl/pub/15184/ERS-2009-016-LIS.pdf
Autor:
Waltman, L., van Eck, N.J.P.
We propose a taxonomy of bibliometric indicators of scientific performance. The taxonomy relies on the property of consistency. The h-index is shown not to have this important property.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::57eb5f3ca7e50e107121735fbff948aa
https://repub.eur.nl/pub/15182/ERS-2009-014-LIS.pdf
https://repub.eur.nl/pub/15182/ERS-2009-014-LIS.pdf
Autor:
Waltman, L., van Eck, N.J.P.
We present a mathematical analysis of the long-run behavior of genetic algorithms that are used for modeling social phenomena. The analysis relies on commonly used mathematical techniques in evolutionary game theory. Assuming a positive but infinitel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::91b67f8e07b03e244e0678adcd30e898
https://repub.eur.nl/pub/15181/ERS-2009-011-LIS.pdf
https://repub.eur.nl/pub/15181/ERS-2009-011-LIS.pdf
Autor:
van Eck, N.J.P., Waltman, L.
We present VOSviewer, a computer program that we have developed for constructing and viewing bibliometric maps. VOSviewer combines the VOS mapping technique and an advanced viewer into a single easy-to-use computer program that is freely available to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::707a8b27a0cff1c91ca685b6926cc9bc
https://repub.eur.nl/pub/14841/ERS-2009-005-LIS.pdf
https://repub.eur.nl/pub/14841/ERS-2009-005-LIS.pdf
Autor:
van Eck, N.J.P., Waltman, L.
In scientometric research, the use of co-occurrence data is very common. In many cases, a similarity measure is employed to normalize the data. However, there is no consensus among researchers on which similarity measure is most appropriate for norma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::2aaa5fa4d03b428d7d8d5f0efa9806dd
https://repub.eur.nl/pub/14528/ERS-2009-001-LIS.pdf
https://repub.eur.nl/pub/14528/ERS-2009-001-LIS.pdf
A term map is a map that visualizes the structure of a scientific field by showing the relations between important terms in the field. The terms shown in a term map are usually selected manually with the help of domain experts. Manual term selection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::e2809dd61df7de9b5e9603b9dfb9d8fd
https://repub.eur.nl/pub/14056/ERS-2008-081-LIS.pdf
https://repub.eur.nl/pub/14056/ERS-2008-081-LIS.pdf
Autor:
van Eck, N.J.P., Waltman, L.
We introduce two new measures of the performance of a scientist. One measure, referred to as the hα-index, generalizes the well-known h-index or Hirsch index. The other measure, referred to as the gα-index, generalizes the closely related g-index.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::f0beb7658542ef58c9cc69ae8e54a9cb
https://repub.eur.nl/pub/13210/ERS-2008-049-LIS.pdf
https://repub.eur.nl/pub/13210/ERS-2008-049-LIS.pdf
Autor:
van Eck, N.J.P., Waltman, L.
In this paper, a bibliometric study of the computational intelligence field is presented. Bibliometric maps showing the associations between the main concepts in the field are provided for the periods 1996–2000 and 2001–2005. Both the current str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c8fc1e8ab8b592822351f4b7af8eeaff
https://repub.eur.nl/pub/11811/ERS-2008-015-LIS.pdf
https://repub.eur.nl/pub/11811/ERS-2008-015-LIS.pdf