Charla: Revealing Comparative Advantages in the Backbone of Science

Marcelo Mendoza, académico de la Universidad Federico Santa María
3 Octubre, 2013 - 15:00
Auditorio 4to piso
Laboratorio PRISMA


Marcelo Mendoza obtuvo su titulo profesional y el grado de magister en la Universidad Técnica Federico Santa María y el grado de doctor en la Universidad de Chile. Sus intereses en investigación son minería de datos en la Web, métodos de maquinas de aprendizaje aplicados a recuperación de información en texto y social media. Actualmente es académico jornada completa en el Departamento de Informática de la Universidad Técnica Federico Santa María e investigador asociado de Yahoo! Labs.



Mapping Science across countries is a challenging task in the field of Scientometrics. A number of efforts trying to cope with this task has been discussed in the state of the art, addressing this challenge by processing collections of scientific digital libraries and visualizing author-based measures (for instance, the h-index) or document-based measures (for instance, the averaged number of citations per document). A major drawback of these approaches is related to the presence of bias. The bigger the country, the higher the measure value. We explore the use of an econometric index to tackle this limitation, known as the Revealed Comparative Advantage measure (RCA). Using RCA, the diversity and ubiquity of each field of knowledge is mapped across countries. Then, a RCA-based proximity function is explored to visualize citation and h-index ubiquity. Science maps relating 27 knowledge areas and 237 countries are introduced using data crawled from Scimago that ranges from 1996 to 2011. Our results shows that the proposal is feasible and can be extended to ellaborate a global scientific production characterization.