BiLSTM-CRF for geological named entity recognition from the geoscience literature

被引:76
|
作者
Qiu, Qinjun [1 ,2 ]
Xie, Zhong [1 ,2 ]
Wu, Liang [1 ,2 ]
Tao, Liufeng [1 ,2 ]
Li, Wenjia [1 ,2 ]
机构
[1] China Univ Geosci, Sch Geog & Informat Engn, Wuhan 430074, Hubei, Peoples R China
[2] Natl Engn Res Ctr Geog Informat Syst, Wuhan 430074, Hubei, Peoples R China
基金
中国国家自然科学基金;
关键词
Geological name entity recognition; Attention mechanism; Prior knowledge; Word embedding; NEURAL-NETWORKS; WORD EMBEDDINGS; VISUALIZATION; INFORMATION; TIME;
D O I
10.1007/s12145-019-00390-3
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Many detailed geoscience reports lie unused, offering both challenges and opportunities for information extraction. In geoscience research, geological named entity recognition (GNER) is an important task in the field of geoscience information extraction. Regarding numerical geoscience data, research on information extraction remains limited. Most conventional NER approaches are heavily dependent on feature engineering, and such sentence-level-based methods suffer from the tagging inconsistency problem. Based on the above observations, this paper proposes a neural network approach, namely, attention-based bidirectional long short-term memory with a conditional random field layer (Att-BiLSTM-CRF), for name entity recognition to extract information entities describing geoscience information from geoscience reports. This approach leverages global information learned from an attention mechanism to enforce tagging consistency across multiple instances of the same token in a document. Experiments on the constructed dataset show that our method achieves comparable performance to that of other state-of-the-art systems. Additionally, our method achieved an average F1 score of 91.47% in the NER extraction task.
引用
收藏
页码:565 / 579
页数:15
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