Discontinuous Constituency and BERT: A Case Study of Dutch

• URL: http://arxiv.org/abs/2203.01063v1
• Date: Wed, 2 Mar 2022 12:30:21 GMT
• Title: Discontinuous Constituency and BERT: A Case Study of Dutch
• Authors: Konstantinos Kogkalidis and Gijs Winholds
• Abstract summary: We quantify the syntactic capacity of BERT in the evaluation regime of non-context free patterns, as occurring in Dutch. We devise a test suite based on a mildly context-sensitive formalism, from which we derive grammars that capture the linguistic phenomena of control verb nesting and verb raising. Our results, backed by extensive analysis, suggest that the models investigated fail in the implicit acquisition of the dependencies examined.
• Score: 0.20305676256390934
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, we set out to quantify the syntactic capacity of BERT in the evaluation regime of non-context free patterns, as occurring in Dutch. We devise a test suite based on a mildly context-sensitive formalism, from which we derive grammars that capture the linguistic phenomena of control verb nesting and verb raising. The grammars, paired with a small lexicon, provide us with a large collection of naturalistic utterances, annotated with verb-subject pairings, that serve as the evaluation test bed for an attention-based span selection probe. Our results, backed by extensive analysis, suggest that the models investigated fail in the implicit acquisition of the dependencies examined.

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