Please look at the number of papers from China in top CS conferences.
In general, the reviews are double blind, making it as objective as possible at this moment.
For those wondering, I just clicked through a few randomly and I only saw ~1/10 from China, and it was fairly applied (i.e. not especially novel research). I'd be interested in a more thorough analysis.
Arguably most CS papers / presentations are not replicable because many don't share the data.