BERT-based Spatial Information Extraction
Hyeong Jin Shin, Jeong Yeon Park, Dae Bum Yuk, Jae Sung Lee · 2020
Spatial information extraction is essential to understand geographical information in text.This task is largely divided to two subtasks: spatial element extraction and spatial relation extraction.In this paper, we utilize BERT (Devlin et al., 2018), which is very effective for many natural language processing applications.We propose a BERT-based spatial information extraction model, which uses BERT for spatial element extraction and R-BERT (Wu and He, 2019) for spatial relation extraction.The model was evaluated with the SemEval 2015 dataset.The result showed a 15.4% point increase in spatial element extraction and an 8.2% point increase in spatial relation extraction in comparison to the baseline model (Nichols and Botros, 2015).