22. A method comprising: performing by one or more computer processors: obtaining an original text message in a first language authored by a first user: obtaining an initial translation of the original text message in a second language; obtaining a translation correction of the initial translation, wherein the translation correction is authored by a second user; calculating at least one metric associated with the translation correction, the at least one metric being based a comparison of a word-based feature of the original text and the translation correction and a comparison of a language-based feature of the original text and the translation correction; determining an accuracy of the translation correction based on the at least one metric, wherein determining the accuracy of the translation correction comprises: multiplying each of the first metric and the second metric by a respective coefficient; and determining the accuracy of the translation based on whether a combination of the multiplied metrics exceeds a first threshold.
22. A method comprising: performing by one or more computer processors: obtaining an original text message in a first language authored by a first user: obtaining an initial translation of the original text message in a second language; obtaining a translation correction of the initial translation, wherein the translation correction is authored by a second user; calculating at least one metric associated with the translation correction, the at least one metric being based a comparison of a word-based feature of the original text and the translation correction and a comparison of a language-based feature of the original text and the translation correction; determining an accuracy of the translation correction based on the at least one metric, wherein determining the accuracy of the translation correction comprises: multiplying each of the first metric and the second metric by a respective coefficient; and determining the accuracy of the translation based on whether a combination of the multiplied metrics exceeds a first threshold. 23. The method of claim 22 , further comprising updating a confidence score for the second user based on the accuracy of the translation correction, the confidence score representing a likelihood that the second user will provide an accurate translation of a text message at a later time.