Chen, B., X. Han, B. He, and L. Sun. “Learning to Map Frequent Phrases to Sub-Structures of Meaning Representation for Neural Semantic Parsing”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 05, Apr. 2020, pp. 7546-53, doi:10.1609/aaai.v34i05.6253.