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http://hdl.handle.net/1942/10288
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DC Field | Value | Language |
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dc.contributor.author | EGGHE, Leo | - |
dc.date.accessioned | 2010-01-07T13:51:10Z | - |
dc.date.available | 2010-01-07T13:51:10Z | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | Larsen, B. & Leta, J. (Ed.) Proceedings of the 12th International Conference of the International Society for Scientometrics and Informetrics. p. 22-30. | - |
dc.identifier.uri | http://hdl.handle.net/1942/10288 | - |
dc.description.abstract | The uncitedness factor of a journal is its fraction of uncited articles. Given a set of journals (e.g. in a field) we can determine the rank-order distribution of these uncitedness factors. Hereby we use the Central Limit Theorem which is valid for uncitedness factors since it are fractions, hence averages. A similar result was proved earlier for the impact factors of a set of journals. Here we combine the two-rank order distributions, hereby eliminating the rank, yielding the functional relation between the impact factor and the uncitedness factor. It is proved that the decreasing relation has an S-shape: first convex then concave and that the inflexion point is in the point (μ',μ) where μ is the average of the impact factors and μ' is the average of the uncitedness factors. | - |
dc.language.iso | en | - |
dc.subject.other | impact factor; uncitedness factor; rank distribution; rank-order distribution; S-shape; Central Limit Theorem | - |
dc.title | The distribution of the uncitedness factor and its functional relation with the impact factor | - |
dc.type | Proceedings Paper | - |
local.bibliographicCitation.authors | Larsen, B. | - |
local.bibliographicCitation.authors | Leta, J. | - |
local.bibliographicCitation.conferencename | International Conference of the International Society for Scientometrics and Informetrics | - |
dc.bibliographicCitation.conferencenr | 12 | - |
local.bibliographicCitation.conferenceplace | Rio de Janeiro (Brazil) | - |
dc.identifier.epage | 30 | - |
dc.identifier.spage | 22 | - |
local.bibliographicCitation.jcat | C1 | - |
local.type.refereed | Refereed | - |
local.type.specified | Proceedings Paper | - |
dc.bibliographicCitation.oldjcat | C1 | - |
dc.identifier.isi | 000271081000003 | - |
local.bibliographicCitation.btitle | Proceedings of the 12th International Conference of the International Society for Scientometrics and Informetrics | - |
item.fullcitation | EGGHE, Leo (2009) The distribution of the uncitedness factor and its functional relation with the impact factor. In: Larsen, B. & Leta, J. (Ed.) Proceedings of the 12th International Conference of the International Society for Scientometrics and Informetrics. p. 22-30.. | - |
item.validation | ecoom 2010 | - |
item.accessRights | Open Access | - |
item.fulltext | With Fulltext | - |
item.contributor | EGGHE, Leo | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
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functional 1.pdf Restricted Access | 271.59 kB | Adobe PDF | View/Open Request a copy | |
functional 2.pdf | 261.72 kB | Adobe PDF | View/Open |
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