Methodology for ShanghaiRanking's Global Ranking of Academic Subjects - 2016
- Selection of Universities
- Definition of Subject Fields
- Indicators and Weights
- Definition of Indicators for Engineering
- Data Sources
To be included in a subject ranking, the universities have to have a minimum number of research publications. For engineering subjects, the scholarly output requirements are 200 papers over the past five years.
In the first round, 7 subjects in Engineering area were ranked. Their corresponding categories and ASJC (All Science Journal Classifications) codes in Scopus database are shown blow:
|Academic Disciplines||Corresponding ASJC Codes and Categories|
1500: Chemical Engineering (all sub-categories)
|Energy Science & Engineering|
2100: Energy (all sub-categories)
2205: Civil and Structural Engineering
2215: Building and Construction
|Electrical & Electronic Engineering|
2208: Electrical and Electronic Engineering
2203: Automotive Engineering
2209: Industrial and Manufacturing Engineering
2210: Mechanical Engineering
|Environmental Science & Engineering|
2300: Environmental Science (all sub-categories)
|Materials Science & Engineering|
2500: Materials Science (all sub-categories)
A new weighting system is adopted. Instead of allocating a total weight of 1, the new methodology for Engineering subjects ranking allocates a weight of 100 for PUB, TOP25, TOP1, IC, MCR, and AWARD and allocates a weight of 200 for FWCI and CC. For each indicator, institutions are calculated as a percentage of the top scored institution and then multiplied by the allocated weight. A final score is arrived by adding scores for all indicators and the final score is ranked in descending order.
|Indicator code||Weight||Indicator descriptions|
The number of papers authored by an institution and indexed in Scopus in each engineering subject
The number of world top 25% most cited papers in each engineering subject an institution has
The number of world top 1% most cited papers in each engineering subject an institution has
How the number of citations received by an institution’s publications compares with the average number of citations received by all other similar publications in each engineering subject the Scopus database
The extent to which an institution’s publications have international co-authorship.
The percentage of an institution’s publication with academic and corporate or industrial co-authors.
Most Cited Researchers in each engineering subject
It refers to the total number of the staff of an institution wining a significant award in an engineering subject. Von Hippel Award issued by Materials Research Society in the United States is selected for Materials Science & Engineering ranking and Tyler Prize issued by University of Southern California in the United States is selected for Environmental Science & Engineering ranking.
PUB measures research productivity. It is the number of papers authored by an institution and indexed in Scopus in a specific subject area for the latest five calendar years (2010-2014). A paper is assigned into one of the seven engineering subject fields according to the classification of the Journal Categories (ASJC Codes) in Scopus database. The publication types include articles, reviews as well as conference papers.
TOP25 measures high quality research outcomes. TOP25 is the number of world top 25% most cited papers an institution has for the latest five calendar years (2010-2014). The publication types include articles, reviews, and conference papers. The top 25 percent cited papers are selected from publications in the same year, of the same type, and within the same sub-category and then aggregated.
TOP1 measures top quality research outcomes produced. TOP1 is defined as the number of world top 1% most cited papers an institution has for the latest five calendar years (2010-2014). The publication types include articles, reviews, and conference papers. The top 1 percent cited papers are selected from publications in the same year, of the same type, and within the same sub-category and then aggregated.
FWCI is the Field-Weighted Citation Impact indicator that measures an institution’s research quality as compared with the world average. The indicator shows how the number of citations received by an institution’s publications compares with the average number of citations received by all other similar publications in the Scopus database. A FWCI of 1 indicates that the entity’s publications have been cited exactly the same as the global average for similar publications. A FWCI of greater than 1 shows a stronger performance of an institution’s publications comparing to similar publications in the world. Similar publications are those in the Scopus database that have the same publication year, publication type, and disciplines.
IC measures international collaboration in the process of research production. It captures the extent to which an institution’s publications have international co-authorship. The publication types cover articles, reviews, and conference papers. The data is collected for the latest five calendar years (2010-2014). The indicator is scaled by total research publications in the subject so that large institutions with high research productivity do not have an unfair advantage in the ranking process.
CC is Academic-Corporate Collaboration, which measures the degree of collaboration between academic and corporate affiliations. It represents the percentage of an institution’s publication with academic and corporate or industrial co-authors. The publication types for this indicator cover articles, reviews, and conference papers. The data is collected for the latest five calendar years (2010-2014).
MCR is the number of Most Cited Researchers. The Most Cited Researchers were selected through three steps: First, the total number of citations received by a researcher in Scopus from the publications where he/she is the corresponding or first author is calculated; Second, those researchers with the greatest number of citations in each sub-category were carefully scanned, confirmed and then aggregated into different subjects; Third, in each subject, the top 150-300 researchers were identified and published. MCR measures an institution’s number of researchers with globally academic influences. (Click here to see the list of the Most Cited Researchers)
AWARD measures the academic achievements and recognitions researchers at an institution have obtained. It refers to the total number of the staff of an institution wining a significant award in a particular subject field. Staff is defined as those who work at an institution at the time of winning the prize. The significant awards are those satisfying the following two criteria. First, the award needs to have a more than 0.67 (2/3) reputation score according to the IREG List of International Academic Awards. An IREG score of 0.67 indicates that the award has a high reputation in a particular field as compared with the reputation of the Nobel Prize. The second criterion is that the awards should have no more than 80% domestic winners. Domestic winners are defined as the winners’ affiliation and the awarding organization is in the same country.
Different weights are set according to the periods of winning the prizes. The weight is 100% for winners after 2011, 80% for winners in 2001-2010, 60% for winners in 1991-2000, 40% for winners in 1981-1990, and finally 20% for winners in 1971-1980. If a winner is affiliated with more than one institution, each institution is assigned the reciprocal of the number of institutions. If the award is awarded to more than one winner in one year, each winner is assigned the reciprocal of the number of winners.