XAlign: Cross-lingual Fact-to-Text Alignment and Generation for Low-Resource Languages

Multiple critical scenarios (like Wikipedia text generation given English Infoboxes) need automated generation of descriptive text in low resource (LR) languages from English fact triples. Previous work has focused on English fact-to-text (F2T) generation. To the best of our knowledge, there has been no previous attempt on cross-lingual alignment or generation for LR languages. Building an effective cross-lingual F2T (XF2T) system requires alignment between English structured facts and LR sentences. We propose two unsupervised methods for cross-lingual alignment. We contribute XALIGN, an XF2T dataset with 0.45M pairs across 8 languages, of which 5402 pairs have been manually annotated. We also train strong baseline XF2T generation models on the XAlign dataset.

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Datasets


Introduced in the Paper:

XAlign

Used in the Paper:

T-REx WikiBio KELM WikiTableT GenWiki

Results from the Paper


Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Data-to-Text Generation XAlign mT5 BLEU4 25 # 3
Data-to-Text Generation XAlign Graph Attention Network Encoder +Transformer Decoder BLEU4 18.3 # 6
Data-to-Text Generation XAlign Vanilla Transformer BLEU4 19.9 # 4

Methods


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