MACHINE TRANSLATION CONTROL DEVICE

A machine translation control device includes: an extraction unit configured to extract one or more frequent sentences from input sentences to machine translation with reference to a use log in a machine translation engine that performs machine translation using a machine translation model; an acquisition unit configured to acquire one or more similar sentences which are similar to the extracted frequent sentence and a similar translated sentence which is a translation of the similar sentence from a translation DB; and a tuning unit configured to tune the machine translation model on the basis of the acquired similar sentence and the acquired similar translated sentence.