Abstract
The objective of a Question-Answering system over Knowledge Graph (KGQA) is to respond to natural language queries presented over the KG. A complex question answering system typically addresses one of the two categories of complexity: questions with constraints and questions involving multiple hops of relations. Most of the previous works have addressed these complexities separately. Multi-hop KGQA necessitates reasoning across numerous edges of the KG in order to arrive at the correct answer. Because KGs are frequently sparse, multi-hop KGQA presents extra complications. Recent works have developed KG embedding approaches to reduce KG sparsity by performing missing link prediction. In this paper, we tried to address multi-hop constrained-based queries using KG embeddings to generate more flexible query graphs. Empirical results indicate that the proposed methodology produces state-of-the-art outcomes on three KGQA datasets.- Anthology ID:
- 2022.naacl-industry.31
- Volume:
- Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies: Industry Track
- Month:
- July
- Year:
- 2022
- Address:
- Hybrid: Seattle, Washington + Online
- Editors:
- Anastassia Loukina, Rashmi Gangadharaiah, Bonan Min
- Venue:
- NAACL
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 280–288
- Language:
- URL:
- https://aclanthology.org/2022.naacl-industry.31
- DOI:
- 10.18653/v1/2022.naacl-industry.31
- Cite (ACL):
- Sayantan Mitra, Roshni Ramnani, and Shubhashis Sengupta. 2022. Constraint-based Multi-hop Question Answering with Knowledge Graph. In Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies: Industry Track, pages 280–288, Hybrid: Seattle, Washington + Online. Association for Computational Linguistics.
- Cite (Informal):
- Constraint-based Multi-hop Question Answering with Knowledge Graph (Mitra et al., NAACL 2022)
- PDF:
- https://preview.aclanthology.org/nschneid-patch-3/2022.naacl-industry.31.pdf
- Data
- ComplexWebQuestions