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基于语义联合的跨模态命名实体识别.docx

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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

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