@inproceedings{du_aacl2020, title = "Leveraging Structured Metadata for Improving Question Answering on the Web", author = "Du, Xinya and Fourney, Adam and Sim, Robert and Cardie, Claire and Bennett, Paul and Awadallah, Ahmed Hassan", booktitle = "Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing", month = dec, year = "2020", address = "Suzhou, China", publisher = "Association for Computational Linguistics", url = "https://www.aclweb.org/anthology/2020.aacl-main.55", pages = "551--556", abstract = "We show that leveraging metadata information from web pages can improve the performance of models for answer passage selection/reranking. We propose a neural passage selection model that leverages metadata information with a fine-grained encoding strategy, which learns the representation for metadata predicates in a hierarchical way. The models are evaluated on the MS MARCO (Nguyen et al., 2016) and Recipe-MARCO datasets. Results show that our models significantly outperform baseline models, which do not incorporate metadata. We also show that the fine-grained encoding{'}s advantage over other strategies for encoding the metadata.", }