There is a new pre-print that has caught some attention (in the German media): Ranking the effectiveness of worldwide COVID-19 government interventions
They used some ML algorithms / methods to judge NPIs from different countries, and the conclusion is that school closure is the most effective one according to pandemic spread.
I’d like to hear some opinion from someone who is more familiar with these methods. My impression is that the Artificial Intelligence from the ML algorithm isn’t that intelligent at all… E.g., I find it suspicious that banning small gathering are more effective than banning mass gatherings.
Any comments are highly appreciated!