3c-index: Research Contribution across Communities as an Influence Indicator


  • Thiago H. P. Silva Universidade Federal de Minas Gerais
  • Lais M. A. Rocha Universidade Federal de Minas Gerais
  • Ana Paula C. Silva Universidade Federal de Minas Gerais
  • Mirella M. Moro Universidade Federal de Minas Gerais


Research performance, Bibliometric indicators, Ranking strategy


This paper proposes a new influence metric (called 3c-index) derived from bibliographic data and social networks analysis. Given a set of communities defined by publication venues, the goal is to measure the degree of influence of researchers by evaluating the links they establish between communities. Specifically, each researcher has a base community where he/she presents greater influence. Then, when such researcher works on a different community (besides the base community), he/she takes new knowledge to that community and transfers influence, which improves the global quality of the communities. By pondering such transfer, we measure the influence of researchers in their and across communities. We also experimentally evaluate the performance of the new index against well known metrics (volume of publications, number of citations and h-index). The results show 3c-index outperforms them in most cases and can be employed as a complementary metric to assess researchers’ productivity.


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Author Biography

Mirella M. Moro, Universidade Federal de Minas Gerais

Mirella M. Moro is an assistant professor at the Computer Science department at UFMG (Belo Horizonte, Brazil). She holds a Ph.D. in Computer Science (University of California Riverside - UCR, 2007), and MSc and BSc in Computer Science as well (UFRGS, Brazil, 2001, 1999). She is the Education Director of SBC (Brazilian Computer Society) and is the editor-in-chief of the new electronic magazine SBC Horizontes, which focuses on career in Computer Science. She is also a member of the ACM Education Council, ACM SIGMOD, ACM SIGCSE, ACM-W, IEEE, IEEE WIE, and MentorNet. Mirella has been working with research in Computer Science in the area of Databases since 1997. Her research interests include hybrid XML/relational modeling, XML query optimization, stream processing, content-based dissemination systems, temporal databases, versioning management, and schema evolution.