Remix.run Logo
dccsillag 4 days ago

Yeah, I know the account you are talking about, it really is a bit over the top. It's a shame, I've met a bunch of people who mentioned that they were actually turned away from Conformal Prediction due to them.

> But having said that, Conformal Prediction works as advertised for UQ as a wrapper on any point estimating model. If you've got the data for it - and in the ML setting you do - and you don't care about things like missing data imputation, error in inputs, non-iid spatio-temporal and hierarchical structures, mixtures of models, evidence decay, unbalanced data where small-data islands coexist big data - all the complicated situations where Bayesian methods just automatically work and other methods require elaborate workarounds, yup, use Conformal Prediction.

Many of these things can actually work really well with Conformal Prediction, but the algorithms require extensions (much like if you are doing Bayesian inference, you also need to update your model accordingly!). They generally end up being some form of reweighting to compensate for the distribution shifts (excluding the Online Conformal Prediction literature, which is another beast entirely). Also, worth noting that if you have iid data then Conformal Prediction is remarkably data-efficient; as little as 20 samples are enough for it to start working for 95% predictive intervals, and with 50 samples (and with almost surely unique conformity scores) it's going to match 95% coverage fairly tightly.

3abiton 4 days ago | parent [-]

Are we talking about NN Taleb? I am curious about the twitter persona.

GemesAS 3 days ago | parent [-]

Someone by the name of V. Minakhin. They have an irrational hatred of Bayesian statistics. He blocked me on twitter for pointing out his claim about significant companies do not use Bayesian methods is contradicted by the fact that I work for one of those companies and use Bayesian methods.

travisjungroth 3 days ago | parent [-]

Netflix uses Bayesian methods all over the place. In a meeting presenting new methods, I called squinting at A/B test results and considering them in the context of prior knowledge "shoot-from-the-hip cowboy Bayes". This eventually lead to a Cowboy Bayes T-shirt, hat and all.