Schema translation is the task of automatically translating headers of tabular data from one language to another. High-quality schema translation plays an important role in cross-lingual table searching, understanding and analysis. Despite its importance, schema translation is not well studied in the community, and state-of-the-art neural machine translation models cannot work well on this task because of two intrinsic differences between plain text and tabular data: morphological difference and context difference. To facilitate the research study, we construct the first parallel dataset for schema translation, which consists of 3,158 tables with 11,979 headers written in 6 different languages, including English, Chinese, French, German, Spanish, and Japanese. Also, we propose the first schema translation model called CAST, which is a header-to-header neural machine translation model augmented with schema context. Specifically, we model a target header and its context as a directed graph to represent their entity types and relations. Then CAST encodes the graph with a relational-aware transformer and uses another transformer to decode the header in the target language. Experiments on our dataset demonstrate that CAST significantly outperforms state-of-the-art neural machine translation models.

Translating Headers of Tabular Data: A Pilot Study of Schema Translation

Virtual Poster Session I: Machine Translation and Multilinguality

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EMNLP 2021

EMNLP 2021 is planned to be a hybrid event in Punta Cana, Dominican Republic, with both on-site and fully virtual participation possible.


<i>**Session Chair: **Alexandra Birch</i><br><br>
<i>**In Person Volunteer:** Abhinav Kumar</i><br>
<i>** Remote Volunteer:** Enfa Rose George</i>

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Translating Headers of Tabular Data: A Pilot Study of Schema Translation

Translating Headers of Tabular Data: A Pilot Study of Schema Translation

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