App. Res. of Comp. Accepted Paper
Vol. 43, 2026 No. 5

Nested named entity recognition model based on semantic-guided boundary modeling

Liu Minghao
Li Han
Liaoning University of Technology, College of Electronic and Information Engineering, Jinzhou Liaoning 121000, China
DOI: 10.19734/j.issn.1001-3695.2025.09.0390

Abstract

To address the insufficient modeling of internal structural information and relative boundary positions in nested named entity recognition, this paper proposed a structure-aware span modeling model based on a triaffine mechanism(SSMT) . The token pair interaction module decoupled semantic and positional features between tokens and modeled their interactions, producing structure-aware attention scores that encode relative positional information. The sequence attention module focused on key regions within entities and enhanced internal structural representations. The fused structure-aware information then entered a dilated convolution module, which captured multi-scale contextual features. A triaffine attention constructed latent span representations, and the model concatenated them with the convolutional features for entity classification. Experiments on the ACE2004 and ACE2005 datasets achieved F1 scores of 88.64% and 87.30%, respectively. These results indicate that the proposed method is effective for nested named entity recognition.

Foundation Support

2024年辽宁省教育厅高等学校基本科研项目(LJ212410154009)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2025.09.0390
Publish at: Application Research of Computers Accepted Paper, Vol. 43, 2026 No. 5

Publish History

[2026-01-19] Accepted Paper

Cite This Article

刘名浩, 李晗. 基于语义引导边界建模的嵌套命名实体识别模型 [J]. 计算机应用研究, 2026, 43 (5). (2026-01-20). https://doi.org/10.19734/j.issn.1001-3695.2025.09.0390. (Liu Minghao, Li Han. Nested named entity recognition model based on semantic-guided boundary modeling [J]. Application Research of Computers, 2026, 43 (5). (2026-01-20). https://doi.org/10.19734/j.issn.1001-3695.2025.09.0390. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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