%0 Conference Proceedings %T Promoting Target Data in Context-aware Neural Machine Translation %A Gete, Harritxu %A Etchegoyhen, Thierry %Y Scarton, Carolina %Y Prescott, Charlotte %Y Bayliss, Chris %Y Oakley, Chris %Y Wright, Joanna %Y Wrigley, Stuart %Y Song, Xingyi %Y Gow-Smith, Edward %Y Bawden, Rachel %Y Sánchez-Cartagena, Víctor M. %Y Cadwell, Patrick %Y Lapshinova-Koltunski, Ekaterina %Y Cabarrão, Vera %Y Chatzitheodorou, Konstantinos %Y Nurminen, Mary %Y Kanojia, Diptesh %Y Moniz, Helena %S Proceedings of the 25th Annual Conference of the European Association for Machine Translation (Volume 1) %D 2024 %8 June %I European Association for Machine Translation (EAMT) %C Sheffield, UK %F gete-etchegoyhen-2024-promoting %X Standard context-aware neural machine translation (NMT) typically relies on parallel document-level data, exploiting both source and target contexts. Concatenation-based approaches in particular, still a strong baseline for document-level NMT, prepend source and/or target context sentences to the sentences to be translated, with model variants that exploit equal amounts of source and target data on each side achieving state-of-the-art results. In this work, we investigate whether target data should be further promoted within standard concatenation-based approaches, as most document-level phenomena rely on information that is present on the target language side. We evaluate novel concatenation-based variants where the target context is prepended to the source language, either in isolation or in combination with the source context. Experimental results in English-Russian and Basque-Spanish show that including target context in the source leads to large improvements on target language phenomena. On source-dependent phenomena, using only target language context in the source achieves parity with state-of-the-art concatenation approaches, or slightly underperforms, whereas combining source and target context on the source side leads to significant gains across the board. %U https://aclanthology.org/2024.eamt-1.6/ %P 9-23