出版社：Consejo Superior de Investigaciones Científicas
摘要：Currently the two most used bibliometric indicators for evaluating scholarly journals are the impact factor and the h-index. However, both indicators vary heavily depending on the scientific field, restricting comparability. In addition, the impact factor is not robust in dealing with articles with a large number of citations, while the h-index is dependent on the size of the journal. These limitations, when comparing journals of different sizes and fields, make it necessary to look to other journal impact factors that can be comparable between scientific fields, that are independent of the journal size, and that are also robust in the presence of items with a high number of citations. An alternative index is based on the percentage of highly cited articles in a journal. This paper empirically compares such an index with the impact factor and the h-index by using different time windows and levels of citation that can determine when a document can be considered as highly cited compared to others of the same year and discipline. The main outcome of this comparison suggests that the best index for obtaining data distributions that are comparable between scientific fields is by taking the 20% citation percentile over a three-year time frame for considering citations.
关键词：Journal evaluation;bibliometric indicator;citation analysis;impact factor;h-index;citation percentile;Evaluación de revistas;indicador bibliométrico;análisis de citas;factor de impacto;índice h;percentil de citación
