AlignXIE: Improving Multilingual Information Extraction by Cross-Lingual Alignment

• URL: http://arxiv.org/abs/2411.04794v1
• Date: Thu, 07 Nov 2024 15:36:05 GMT
• Title: AlignXIE: Improving Multilingual Information Extraction by Cross-Lingual Alignment
• Authors: Yuxin Zuo, Wenxuan Jiang, Wenxuan Liu, Zixuan Li, Long Bai, Hanbin Wang, Yutao Zeng, Xiaolong Jin, Jiafeng Guo, Xueqi Cheng,
• Abstract summary: AlignXIE formulates IE across different languages, especially non-English ones, as code generation tasks. It incorporates an IE cross-lingual alignment phase through a translated instance prediction task. It surpasses ChatGPT by $30.17%$ and SoTA by $20.03%$, thereby demonstrating superior cross-lingual IE capabilities.
• Score: 62.69772800910482
• License:
• Abstract: Empirical evidence suggests that LLMs exhibit spontaneous cross-lingual alignment. Our findings suggest that although LLMs also demonstrate promising cross-lingual alignment in Information Extraction, there remains significant imbalance across languages, revealing an underlying deficiency in the IE alignment. To address this issue, we propose AlignXIE, a powerful code-based LLM that significantly enhances cross-lingual IE alignment through two strategies. Firstly, AlignXIE formulates IE across different languages, especially non-English ones, as code generation tasks, standardizing the representation of various schemas using Python classes to ensure consistency of the same ontology in different languages and align the schema. Secondly, it incorporates an IE cross-lingual alignment phase through a translated instance prediction task proposed in this paper to align the extraction process, utilizing ParallelNER, an IE bilingual parallel dataset with 257,190 samples, generated by our proposed LLM-based automatic pipeline for IE parallel data construction, with manual annotation to ensure quality. Ultimately, we obtain AlignXIE through multilingual IE instruction tuning. Although without training in 9 unseen languages, AlignXIE surpasses ChatGPT by $30.17\%$ and SoTA by $20.03\%$, thereby demonstrating superior cross-lingual IE capabilities. Comprehensive evaluations on 63 IE benchmarks in Chinese and English under various settings, demonstrate that AlignXIE significantly enhances cross-lingual and multilingual IE through boosting the IE alignment.

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