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arXiv 2109.03415cs.CL

Vision Matters When It Should: Sanity Checking Multimodal Machine Translation Models

ETH Zürich(苏黎世联邦理工学院);New York University(纽约大学);University of Zürich(苏黎世大学);University of Edinburgh(爱丁堡大学)

Jiaoda Li, Duygu Ataman, Rico Sennrich

英文摘要:

Multimodal machine translation (MMT) systems have been shown to outperform their text-only neural machine translation (NMT) counterparts when visual context is available. However, recent studies have also shown that the performance of MMT models is only marginally impacted when the associated image is replaced with an unrelated image or noise, which suggests that the visual context might not be exploited by the model at all. We hypothesize that this might be caused by the nature of the commonly used evaluation benchmark, also known as Multi30K, where the translations of image captions were prepared without actually showing the images to human translators. In this paper, we present a qualitative study that examines the role of datasets in stimulating the leverage of visual modality and we propose methods to highlight the importance of visual signals in the datasets which demonstrate improvements in reliance of models on the source images. Our findings suggest the research on effective MMT architectures is currently impaired by the lack of suitable datasets and careful consideration must be taken in creation of future MMT datasets, for which we also provide useful insights.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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