Discontinuous Combinatory Constituency Parsing

IF 4.2 1区计算机科学 Q2 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE

Transactions of the Association for Computational Linguistics Pub Date : 2023-03-01 DOI:10.1162/tacl_a_00546

Zhousi Chen, Mamoru Komachi

引用次数: 0

Abstract

We extend a pair of continuous combinator-based constituency parsers (one binary and one multi-branching) into a discontinuous pair. Our parsers iteratively compose constituent vectors from word embeddings without any grammar constraints. Their empirical complexities are subquadratic. Our extension includes 1) a swap action for the orientation-based binary model and 2) biaffine attention for the chunker-based multi-branching model. In tests conducted with the Discontinuous Penn Treebank and TIGER Treebank, we achieved state-of-the-art discontinuous accuracy with a significant speed advantage.

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不连续组合选区解析

我们将一对基于连续组合子的选区解析器（一个二进制和一个多分支）扩展为一对不连续的。我们的解析器在没有任何语法约束的情况下，从单词嵌入中迭代地组成组成向量。它们的经验复杂性是次二次的。我们的扩展包括1）基于方向的二进制模型的交换动作，以及2）基于分块器的多分支模型的双仿射注意。在使用不连续宾夕法尼亚树库和老虎树库进行的测试中，我们实现了最先进的不连续精度，并具有显著的速度优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transactions of the Association for Computational Linguistics Multiple-

CiteScore

32.60

自引率

4.60%

发文量

审稿时长

8 weeks

期刊介绍： The highly regarded quarterly journal Computational Linguistics has a companion journal called Transactions of the Association for Computational Linguistics. This open access journal publishes articles in all areas of natural language processing and is an important resource for academic and industry computational linguists, natural language processing experts, artificial intelligence and machine learning investigators, cognitive scientists, speech specialists, as well as linguists and philosophers. The journal disseminates work of vital relevance to these professionals on an annual basis.