Indicators

The 2018 performance measures are composed of eight indicators. These indicators together represent three different criteria of scientific paper performance: research productivity, research impact, and research excellence. Table 1 lists the indicators and shows the respective weightings for each indicator.
Table 1 The Criteria and Indicators, and Their Respective Weightings, Used for the Overall Performance-Based Ranking.

*Note: The timeframe of the three long-term indicators is consistent with that in ESI, providing cumulative data for the last 11 years.
Criteria 2018 Overall Performance Indicators Weighting
Research productivity
Number of articles in the last 11 years* (2007-2017)
Number of articles in the current year (2017)
10%
15%
25%
Research impact Number of citations in the last 11 years* (2007-2017)
Number of citations in the last 2 years (2016-2017)
Average number of citations in the last 11 years* (2007-2017)
15%
10%
10%
35%
Research Excellence h-index of the last 2 years (2016-2017)
Number of Highly Cited Papers* (2007-2017)
Number of articles in the current year in high-impact journals (2016-2017)
10%
15%
15%
40%