基于语义联合的跨模态命名实体识别.docx
基于语义联合的跨模态命名实体识别
目录
内容描述................................................2
1.1研究背景...............................................2
1.2研究意义...............................................4
1.3文档结构...............................................4
相关工作................................................4
2.1命名实体识别概述.......................................5
2.2跨模态信息融合技术.....................................6
2.3语义联合模型研究.......................................7
基于语义联合的跨模态命名实体识别方法....................8
3.1系统架构..............................................10
3.1.1数据预处理..........................................11
3.1.2特征提取............................................12
3.1.3语义联合模型设计....................................13
3.1.4模型训练与优化......................................14
3.2语义联合模型细节......................................15
3.2.1语义嵌入层..........................................17
3.2.2注意力机制..........................................18
3.2.3跨模态信息融合策略..................................18
3.2.4输出层设计..........................................20
实验与评估.............................................21
4.1数据集介绍............................................23
4.2评价指标..............................................24
4.3实验设置..............................................26
4.3.1实验环境............................................27
4.3.2超参数设置..........................................28
4.4实验结果与分析........................................30
4.4.1结果展示............................................31
4.4.2对比分析............................................32
结果讨论...............................................33
5.1模型性能分析..........................................34
5.2模型鲁棒性分析........................................34
5.3模型局限性分析........................................35
结论与展望.............................................37
6.1研究结论..............................................38
6.2未来工作展望..........................................38
6.2.1模型改进............................................39
6.2.2应用拓展