If you're implementing Thompson Sampling in most other programming languages, you'll have to find an external library, or implement a beta() function yourself. The code in Listing 2 presents a raw ...

HERVÉ CARDOT, ETIENNE JOSSERAND, Horvitz—Thompson estimators for functional data: asymptotic confidence bands and optimal allocation for stratified sampling, Biometrika, Vol. 98, No. 1 (MARCH 2011), ...