Friday, August 02, 2024

Forget about the Euros, this is really serious

We are told that the failure at the UEFA final was a tragedy for England. Perhaps, but something else happened early in July that should have caused some debate but passed almost unnoticed, namely the publication of the latest edition of the CWTS Leiden Ranking.

The release of the Times Higher Education (THE) World University rankings and, to a lesser extent, the global rankings from Shanghai, QS, and US News (USN) are often met with fulsome praise from the media and government officials when national favourites rise in the rankings and lamentations when they fall, but other rankings, often much more reliable and rigorous, are largely ignored.

This is partly because the THE and QS rankings are dominated by American and British universities. Oxford, Cambridge, and Imperial College London are in the top ten in the overall tables in these three rankings. This year there was a lot of media talk about Imperial moving ahead of Cambridge and Oxford into second place in the QS rankings, just behind MIT. According to these rankings, British universities are on top of the world and criticism from journalists or politicians would surely be churlish in the extreme. 

It would, however, be a mistake to assume that the big brand rankings are objective judges of academic merit or any other sort. They are biased towards UK universities in a variety of obvious and subtle ways. QS, THE, and USN all include surveys of established academics, and the Shanghai Rankings include Nobel and Fields award winners, some of whom are long gone or retired. THE has three metrics based on income. THE USN, and QS give more weight to citations rather than publications, loading the dice for older and better-funded researchers. 

It seems that British universities have complacently accepted the verdict of these rankings and appear unwilling to consider that they are doing anything less than perfect. When the Sunak government proposed some vague and  bland  changes, the Chief Executive of the London Higher Group of Institutions complained that it was "beyond belief" that the government should have the King speak negatively of the "world-leading higher education and research sector." 

It is perhaps time to look at another ranking, one produced by the Centre for Science and Technology Studies (CWTS) at Leiden University. This provides data on publications with various optional filters for subject group, country, period, and fractional counting. There are also rankings for international and industrial collaboration, open-access publications, and gender equity in research.

CWTS does not, however, publish overall rankings, sponsor spectacular events in prestigious settings, or offer consultations and benchmarking services for non-trivial sums. Consequently, it is usually neglected by the media, university heads, or the grandees of the world economy gathered at WEF forums and the like.

Turning to the latest edition,  starting with the default metric, publications in the Web of Science over the period 2019-2022, we see that Zhejiang University has now overtaken Harvard and moved into first place. In the next few years, it is likely that other Chinese universities like Fudan, Peking, and Tsinghua will join Zhejiang at the peak. 

But the most interesting part of Leiden Ranking is the steady decline of British universities. Oxford is now 25th  in the publications table, down from 14th in 2009-12. That's not too bad, but rather different from the latest QS world ranking, where it is third, US News Best Global Universities, where it is fourth, or THE, where it is first. Oxford is well behind several Chinese universities and also behind, among others, the University of Sao Paulo, Seoul National University, and the University of Pennsylvania.

Of course, you could say that this is a crude measure of research activity and that if we look at other metrics, such as publications in the top 10% and the top 1% of journals, then, yes, Oxford does better. The problem is that the high-quality metrics are usually lagging indicators so we can expect Oxford to start declining there also before too long.

When we look at the broad subject tables for publications, there is further evidence of gradual decline.  For Mathematics and  Computer Science, Oxford is 63rd, behind Purdue University, Beijing University of Technology, and the University of New South Wales. In 2009-12 it was 50th. 

For Physical Sciences and Engineering, it is 72nd behind the  University of Tehran, Texas A & M, and Lomonosov Moscow State University. In 2009-12 it was 29th.

It is 64th in Life and Earth Sciences, behind Lanzhou University, the Swedish University of Agricultural Science, and Colorado State University. In 2009-2012 it was 42nd. 

For Biomedical and Health Sciences, it is 39th, behind Duke, University of British Columbia, and Karolinska Institutet; in 2009-2012, it was 27th.

Finally, when it comes to the Humanities and Social Scientists, Oxford remains at the top. It is fourth in the world, just as it was in 2009-2012. 

A glance at some middling British institutions shows the same picture of steady relative decline. Between 2009-2012 and 2019-2022 Reading went from 489th to 719th, Liverpool from 233rd to 302nd, and Cardiff from 190th to 328th. 

It is perhaps unfair to judge complex institutions based on a single metric. Unfortunately, most science, scholarship, and everyday life are based on assigning numbers that may ignore the fine details of indispensable complex phenomena. 

Also, such data does not tell us the full story about teaching and learning, but there is plenty of anecdotal evidence that British universities are not doing so great there either. 

It seems that the big rankings are exaggerating the merits of British higher education. It is time to take a look at some of the global in  rankings produced in places like the Netherlands (Leiden Ranking), Spain (SCImago), Turkiye (URAP), Georgia (RUR), and Taiwan (NTU rankings).









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