E-Index—A Bibliometric Index of Research Efficiency | Zendy

Bo Wu | Zendy; Fengrong Ou | Zendy; Yan Deng | Zendy; Ruxi Liu | Zendy; Hui Hua | Zendy; Rentong Chen | Zendy; Yuyuan Guan | Zendy; Dan Yang | Zendy; Lars Gjesteby | Zendy; Jiansheng Yang | Zendy; Michael W. Vannier | Zendy; Ge Wang | Zendy; Yang Liu | Zendy

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E-Index—A Bibliometric Index of Research Efficiency

Author(s) -

Bo Wu,

Fengrong Ou,

Yan Deng,

Ruxi Liu,

Hui Hua,

Rentong Chen,

Yuyuan Guan,

Dan Yang,

Lars Gjesteby,

Jiansheng Yang,

Michael W. Vannier,

Ge Wang,

Yang Liu

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2868650

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

A principal investigator is obligated not only to make academic impacts but also to do so in a cost-effective fashion. While popular bibliometric measures such as the journal impact factor (IF) and the H-index measure citation-oriented bibliometric impacts, here we propose the E-index to reflect a principal investigator's research efficiency also in terms of bibliometric data. Our E-index incorporates both IF-citation-based output and “total equivalent time”that the principal investigator's team takes to deliver the output so that the bibliometric output can be normalized by the involved research time. The E-index is then evaluated using a large set of peer-reviewed journal papers by extramurally funded Chinese principal investigators in the field of life sciences. The E-index values are compared relative to university rank and other factors. As expected, the highest average E-index scores were achieved by principal investigators at top national universities. Being quantitative, the E-index adds insight into common debates such as what the optimal team size should be, which career stage is the most prolific, and so on. The E-index should be useful in assessing principal investigators in comparable fields and longitudinally.

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