Kewei Tu

Second-Order Unsupervised Neural Dependency Parsing

2020

Most of the unsupervised dependency parsers are based on first-order probabilistic generative models that only consider local parent-child information. Inspired by second-order supervised dependency parsing, we proposed a second-order extension of unsupervised neural dependency models …

COMBO: A Complete Benchmark for Open KG Canonicalization

2023 · arXiv (Cornell University)

Open knowledge graph (KG) consists of (subject, relation, object) triples extracted from millions of raw text. The subject and object noun phrases and the relation in open KG have severe redundancy and ambiguity and need …

Improving Named Entity Recognition by External Context Retrieving and Cooperative Learning

2021

Xinyu Wang, Yong Jiang, Nguyen Bach, Tao Wang, Zhongqiang Huang, Fei Huang, Kewei Tu. Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language …