likelihood and if your derivation for maximum likelihood came out nice and closed form then this will come out nationally in closed form too because they'll be the same derivation just introduce some fake experiments in the mix but otherwise everything's the same for this kind of bear knew your experiment this is what it could look like if you have data to the power alpha minus 1 1 minus 2 power beta minus 1 and then closed form on the right there you'll see the effectively add pseudo counts alpha minus 1 beta minus 1 pseudo