There is a typo in the restricted-boltzman-machine tag. Boltzmann is spelled with a double n but the tag currently has a single n. From this Meta post I got the impression the moderators can fix typos like this. Would any of the moderators kindly do it?
There's supposed to be a mechanism for users to propose tag synonyms, but it is rarely invoked and never works because it requires (as I recall) five votes for approval and there's no queue to alert people a synonym is pending.
For the record, this change is effected by creating the new tag and merging the old tag with the new as a "synonym." This process "orphans" the tag wiki (if it exists). Mods can find orphan wikis in order to recover their text, which I have done. There's probably a better way to do all this, but what I have described is how it most naturally happens.