Import-export of knowledge between scientific subject categories: The iceberg hypothesis |
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Authors: | Vicente P. Guerrero-Bote Felipe Zapico-Alonso María Eugenia Espinosa-Calvo Rocío Gómez-Crisóstomo Félix de Moya-Anegón |
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Affiliation: | (1) Facultad de Biblioteconomía y Documentación, Universidad de Extremadura, Campus Cartuja, 06071 Badajoz, Spain;(2) Facultad de Biblioteconomía y Documentación, Universidad de Granada, Campus Cartuja, Granada, Spain |
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Abstract: | The capacity to attract citations from other disciplines — or knowledge export — has always been taken into account in evaluating the quality of scientific papers or journals. Some of the JCR’s (ISI’s Journal Citation Report) Subject Categories have a greater exporting character than others because they are less isolated. This influences the rank/JIF (ISI’s Journal Impact Factor) distribution of the category. While all the categories fit a negative power law fairly well, those with a greater External JIF give distributions with a more sharply defined peak and a longer tail — something like an iceberg. One also observes a major relationship between the rates of export and import of knowledge. |
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