> https://github.com/uav4geo/LibreTranslate/issues/33 https://github.com/uav4geo/LibreTranslate/issues/33 That issue is about emojis, which confused me a bit,

> https://github.com/uav4geo/LibreTranslate/issues/33 https://github.com/uav4geo/LibreTranslate/issues/33 That issue is about emojis, which confused me a bit, but I see that the linked commit is about replacing <unk> by the corresponding source token. https://github.com/argosopentech/argos-translate/commit/6a0f389caccd35645049f00658636b5c007b98a8 https://github.com/argosopentech/argos-translate/commit/6a0f... That's definitely an improvement, but what I was actually wondering about was why the model was copying the input verbatim in the first place. Looking through the en-zh data in Opus, it looks like a bit of a mixed bag. This sample from OpenSubtitles v1 contains an ad for MyDVDrip in the Chinese version only: http://opus.nlpl.eu/OpenSubtitles/v1/en-zh_sample.html http://opus.nlpl.eu/OpenSubtitles/v1/en-zh_sample.html Filtering the data with some heuristics might be a good idea.