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Syntax-guided controlled generation of paraphrases

Kumar, A and Ahuja, K and Vadapalli, R and Talukdar, P (2020) Syntax-guided controlled generation of paraphrases. In: Transactions of the Association for Computational Linguistics, 8 . pp. 330-345.

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Official URL: https://doi.org/10.1162/tacl_a_00318


Given a sentence (e.g., ‘‘I like mangoes’’) and a constraint (e.g., sentiment flip), the goal of controlled text generation is to produce a sentence that adapts the input sentence to meet the requirements of the constraint (e.g., ‘‘I hate mangoes’’). Going beyond such simple constraints, recent work has started exploring the incorporation of complex syntactic-guidance as constraints in the task of controlled paraphrase generation. In these methods, syntactic-guidance is sourced from a separate exemplar sentence. However, these prior works have only utilized limited syntactic information available in the parse tree of the exemplar sentence. We address this limitation in the paper and propose Syntax Guided Controlled Paraphraser (SGCP), an end-to-end framework for syntactic paraphrase generation. We find that SGCP can generate syntax-conforming sentences while not compromising on relevance. We perform extensive automated and human evaluations over multiple real-world English language datasets to demonstrate the efficacy of SGCP over state-of-the-art baselines. To drive future research, we have made SGCP’s source code available.

Item Type: Journal Article
Publication: Transactions of the Association for Computational Linguistics
Publisher: MIT Press Journals
Additional Information: The copyright for this article belongs to the Authors.
Department/Centre: Division of Interdisciplinary Sciences > Computational and Data Sciences
Date Deposited: 23 Jan 2023 06:35
Last Modified: 23 Jan 2023 06:35
URI: https://eprints.iisc.ac.in/id/eprint/79254

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