Abstract
In this work, we focus on complex question semantic parsing and propose a novel Hierarchical Semantic Parsing (HSP) method, which utilizes the decompositionality of complex questions for semantic parsing. Our model is designed within a three-stage parsing architecture based on the idea of decomposition-integration. In the first stage, we propose a question decomposer which decomposes a complex question into a sequence of sub-questions. In the second stage, we design an information extractor to derive the type and predicate information of these questions. In the last stage, we integrate the generated information from previous stages and generate a logical form for the complex question. We conduct experiments on COMPLEXWEBQUESTIONS which is a large scale complex question semantic parsing dataset, results show that our model achieves significant improvement compared to state-of-the-art methods.- Anthology ID:
- P19-1440
- Volume:
- Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics
- Month:
- July
- Year:
- 2019
- Address:
- Florence, Italy
- Venue:
- ACL
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 4477–4486
- Language:
- URL:
- https://aclanthology.org/P19-1440
- DOI:
- 10.18653/v1/P19-1440
- Cite (ACL):
- Haoyu Zhang, Jingjing Cai, Jianjun Xu, and Ji Wang. 2019. Complex Question Decomposition for Semantic Parsing. In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics, pages 4477–4486, Florence, Italy. Association for Computational Linguistics.
- Cite (Informal):
- Complex Question Decomposition for Semantic Parsing (Zhang et al., ACL 2019)
- PDF:
- https://preview.aclanthology.org/starsem-semeval-split/P19-1440.pdf
- Code
- cairohy/hsp
- Data
- ComplexWebQuestions, WebQuestions