Better than BERT but Worse than Baseline

Boxiang Liu; Jiaji Huang; Xingyu Cai; Kenneth Church

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arXiv · 2105.05915

Better than BERT but Worse than Baseline

Boxiang Liu·Jiaji Huang·Xingyu Cai·Kenneth Church

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Abstract

This paper compares BERT-SQuAD and Ab3P on the Abbreviation Definition Identification (ADI) task. ADI inputs a text and outputs short forms (abbreviations/acronyms) and long forms (expansions). BERT with reranking improves over BERT without reranking but fails to reach the Ab3P rule-based baseline. What is BERT missing? Reranking introduces two new features: charmatch and freq. The first feature identifies opportunities to take advantage of character constraints in acronyms and the second feature identifies opportunities to take advantage of frequency constraints across documents.

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BibTeX RIS

Boxiang Liu, Jiaji Huang, Xingyu Cai, Kenneth Church. 2021-05-12. Better than BERT but Worse than Baseline. https://arxiv.org/abs/2105.05915

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