this seems to be simply a ranking of organisations by the number of citations.

there are a number of factors missed:

1. what's the earliest publication of each organisation?

2. what's the real world impact of the publications? (citations are not real world impact.)

3. what was the significance of an organisation's contribution to a publication? for example, there might be many authors, where only one author did the actual work.

4. it should be normalized by the size of the organisation.

5. CS is multidisciplinary: plenty of people in CS publish in other domains such as biology, mathematics, statistics.

i couldn't work out if they counted self-citations or not.