AMR Parsing with Causal Hierarchical Attention and Pointers

1 code implementation • 18 Oct 2023 • Chao Lou, Kewei Tu

Translation-based AMR parsers have recently gained popularity due to their simplicity and effectiveness.

AMR Parsing Translation

SeqGPT: An Out-of-the-box Large Language Model for Open Domain Sequence Understanding

1 code implementation • 21 Aug 2023 • Tianyu Yu, Chengyue Jiang, Chao Lou, Shen Huang, Xiaobin Wang, Wei Liu, Jiong Cai, Yangning Li, Yinghui Li, Kewei Tu, Hai-Tao Zheng, Ningyu Zhang, Pengjun Xie, Fei Huang, Yong Jiang

However, LLMs are sometimes too footloose for natural language understanding (NLU) tasks which always have restricted output and input format.

Entity Typing Event Extraction +3

Improving Grammar-based Sequence-to-Sequence Modeling with Decomposition and Constraints

1 code implementation • 5 Jun 2023 • Chao Lou, Kewei Tu

Neural QCFG is a grammar-based sequence-tosequence (seq2seq) model with strong inductive biases on hierarchical structures.

Unsupervised Vision-Language Parsing: Seamlessly Bridging Visual Scene Graphs with Language Structures via Dependency Relationships

1 code implementation • CVPR 2022 • Chao Lou, Wenjuan Han, Yuhuan Lin, Zilong Zheng

Our goal is to bridge the visual scene graphs and linguistic dependency trees seamlessly.

Contrastive Learning Phrase Grounding

Nested Named Entity Recognition as Latent Lexicalized Constituency Parsing

1 code implementation • ACL 2022 • Chao Lou, Songlin Yang, Kewei Tu

They treat nested entities as partially-observed constituency trees and propose the masked inside algorithm for partial marginalization.

Constituency Parsing Entity Typing +4