In recent years excellent scientific research, as the main driving force of our modern society, has been proved to be the
source of breakthroughs in the diffusion of our knowledge of the world. The evaluation of such scientific research is consid-
ered to be of paramount importance. One of the main factors in the assessment of research performance is the international
scientific influence, representing a measurable aspect of scientific quality.
Current research evaluation methodologies can be classified as qualitative and quantitative assessments of research per-
formance. The former includes the peer review methodologies, reviews conducted by colleague-scientists (peers) in order to
evaluate research groups and programs, to make appointments of research staff, to judge research proposals and projects,
etc. The latter contains certain bibliometric methodologies for evaluating research performance within the framework of
international scientific influence