ACL 2022short20 citations
Sequence-to-sequence AMR Parsing with Ancestor Information
Abstract
AMR parsing is the task that maps a sentence to an AMR semantic graph automatically. The difficulty comes from generating the complex graph structure. The previous state-of-the-art method translates the AMR graph into a sequence, then directly fine-tunes a pretrained sequence-to-sequence Transformer model (BART). However, purely treating the graph as a sequence does not take advantage of structural information about the graph. In this paper, we design several strategies to add the important ancestor information into the Transformer Decoder. Our experiments show that we can improve the performance for both AMR 2.0 and AMR 3.0 dataset and achieve new state-of-the-art results.
BibTeX
@inproceedings{yu-gildea-2022-sequence,
title = "Sequence-to-sequence {AMR} Parsing with Ancestor Information",
author = "Yu, Chen and
Gildea, Daniel",
editor = "Muresan, Smaranda and
Nakov, Preslav and
Villavicencio, Aline",
booktitle = "Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 2: Short Papers)",
month = may,
year = "2022",
address = "Dublin, Ireland",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2022.acl-short.63/",
doi = "10.18653/v1/2022.acl-short.63",
pages = "571--577"
}