Logo eprints

Model-based evaluation of scientific impact indicators

Medo, Matúš and Cimini, Giulio Model-based evaluation of scientific impact indicators. Physical Review E, 94. 032312. ISSN 1539-3755 (2016)

PDF - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (796kB) | Preview


Using bibliometric data artificially generated through a model of citation dynamics calibrated on empirical data, we compare several indicators for the scientific impact of individual researchers. The use of such a controlled setup has the advantage of avoiding the biases present in real databases, and it allows us to assess which aspects of the model dynamics and which traits of individual researchers a particular indicator actually reflects. We find that the simple average citation count of the authored papers performs well in capturing the intrinsic scientific ability of researchers, regardless of the length of their career. On the other hand, when productivity complements ability in the evaluation process, the notorious h and g indices reveal their potential, yet their normalized variants do not always yield a fair comparison between researchers at different career stages. Notably, the use of logarithmic units for citation counts allows us to build simple indicators with performance equal to that of h and g. Our analysis may provide useful hints for a proper use of bibliometric indicators. Additionally, our framework can be extended by including other aspects of the scientific production process and citation dynamics, with the potential to become a standard tool for the assessment of impact metrics.

Item Type: Article
Identification Number: 10.1103/PhysRevE.94.032312
Subjects: Q Science > QC Physics
Research Area: Economics and Institutional Change
Depositing User: Caterina Tangheroni
Date Deposited: 04 Aug 2017 11:01
Last Modified: 04 Aug 2017 11:01
URI: http://eprints.imtlucca.it/id/eprint/3754

Actions (login required)

Edit Item Edit Item