A measure of similarity between scientific journals and of diversity of   a list of publications
  The aim of this note is to propose a definition of the scientific diversity and corollarly, a measure of the "interdisciplinarity" of collaborations. With respect to previous studies, the proposed approach consists of 2 steps : first, the definition of similarity between journals and second, these similarities are used to characterize the homogeneity (or, on the contrary the diversity) of a publication list (that can be for one individual or a team). 
St\'ephane Cordier (MAPMO)
cs.DL cs.IR physics.soc-ph