On a multi national website our users access the site with a given locale (en-GB, en-US, etc) Locale of a user may effect items in two different ways. 1) An Item cannot be associated with  certain locales (for legal or availability). Items may mean different things to users in different locales (trip to paris is a weekend city break to en-GB but a family holiday for two weeks to en-US)   I was thinking along the lines of using locale as a tag with a very strong confidence value but i'm now thinking is that good enough ?   Should I compute and serve multiple locale based models ? Has anyone solved a similiar issue before (I'm thinking this is not a new use-case   Lee C ... View more