CORI: CJKV Benchmark with Romanization Integration -- A step towards Cross-lingual Transfer Beyond Textual Scripts

• URL: http://arxiv.org/abs/2404.12618v1
• Date: Fri, 19 Apr 2024 04:02:50 GMT
• Title: CORI: CJKV Benchmark with Romanization Integration -- A step towards Cross-lingual Transfer Beyond Textual Scripts
• Authors: Hoang H. Nguyen, Chenwei Zhang, Ye Liu, Natalie Parde, Eugene Rohrbaugh, Philip S. Yu,
• Abstract summary: Some languages are more well-connected than others, and target languages can benefit from transferring from closely related languages. We study the impact of source language for cross-lingual transfer, demonstrating the importance of selecting source languages that have high contact with the target language.
• Score: 50.44270798959864
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Naively assuming English as a source language may hinder cross-lingual transfer for many languages by failing to consider the importance of language contact. Some languages are more well-connected than others, and target languages can benefit from transferring from closely related languages; for many languages, the set of closely related languages does not include English. In this work, we study the impact of source language for cross-lingual transfer, demonstrating the importance of selecting source languages that have high contact with the target language. We also construct a novel benchmark dataset for close contact Chinese-Japanese-Korean-Vietnamese (CJKV) languages to further encourage in-depth studies of language contact. To comprehensively capture contact between these languages, we propose to integrate Romanized transcription beyond textual scripts via Contrastive Learning objectives, leading to enhanced cross-lingual representations and effective zero-shot cross-lingual transfer.

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