Paper Info
Title
Multitask learning for biomedical named entity recognition with cross-sharing structure.
Abstract
Biomedical named entity recognition (BioNER) is a fundamental and essential task for biomedical literature mining, which affects the performance of downstream tasks. Most BioNER models rely on domain-specific features or hand-crafted rules, but extracting features from massive data requires much time and human efforts. To solve this, neural network models are used to automatically learn features. Recently, multi-task learning has been applied successfully to neural network models of biomedical literature mining. For BioNER models, using multi-task learning makes use of features from multiple datasets and improves the performance of models. In experiments, we compared our proposed model with other multi-task models and found our model outperformed the others on datasets of gene, protein, disease categories. We also tested the performance of different dataset pairs to find out the best partners of datasets. Besides, we explored and analyzed the influence of different entity types by using sub-datasets. When dataset size was reduced, our model still produced positive results. We propose a novel multi-task model for BioNER with the cross-sharing structure to improve the performance of multi-task models. The cross-sharing structure in our model makes use of features from both datasets in the training procedure. Detailed analysis about best partners of datasets and influence between entity categories can provide guidance of choosing proper dataset pairs for multi-task training. Our implementation is available at https://github.com/JogleLew/bioner-cross-sharing .
Year
DOI
Venue
2019
10.1186/s12859-019-3000-5
BMC Bioinformatics
Keywords
DocType
Volume
Multi-task learning, Named entity recognition, Cross-sharing structure
Journal
20
Issue
ISSN
Citations 
1
1471-2105
0
PageRank 
References 
Authors
0.34
12
4
Name
Order
Citations
PageRank
Xi Wang100.34
Jiagao Lyu200.34
Li Dong358231.86
Ke Xu4143399.79