一种联合跨实体预测方法,用于低资源的日本NER的生成和跨语言元学习
Xiaoli Shao1, Demei Zhu2, Qin Liu3
1School of Foreign Languages, Jiangsu University of Technology, Changzhou, 213001, Jiangsu, China.
Scientific reports
|February 24, 2026
概括
本研究介绍了MAML-ProtoNet++,这是一个新的框架,通过先进的元学习和跨语言技术来增强低资源的日本少数名字命名实体识别 (NER). 该模型实现了显著的性能提升,证明了改进的准确性和稳定性.
科学领域:
- 自然语言处理自然语言处理.
- 机器学习 机器学习
- 计算语言学 计算语言学
背景情况:
- 由于有限的注释和跨语言对齐问题,低资源的日本少数拍摄的命名实体识别 (NER) 面临挑战.
- 现有的方法与边界模糊性和数据稀缺性作斗争,阻碍了在专业领域的性能.
研究的目的:
- 开发一个层次化的动态元学习框架 (MAML-ProtoNet++),用于低资源的日本少数NER.
- 通过整合生成增强,跨语言预训练和联合跨实体预测来提高实体识别的准确性和稳定性.
主要方法:
- 使用了MAML-ProtoNet++框架,具有生成增强 (mT5伪样本) 和信任选.
- 采用跨语言对比预训练 (NT-Xent) 来调整来自WikiData的日英实体对.
- 集成的MAML风格快速适应与ProtoNet风格原型匹配,使用多颗粒度编码和联合跨度类型模块.
主要成果:
- 在日本的5次射击NER设置中获得了0.772的宏观F1得分.
- 通过跨语言预训练,改善了日英实体对的同位素相似性,从0.61到0.85.
- 在使用动态参数控制的高复杂性任务中,F1得分高于0.73的稳定性被证明.
结论:
- MAML-ProtoNet++有效地解决了低资源的日本少数NER中的局限性.
- 该框架显示出强大的可转移性和稳定性,性能优于以前的方法.
- 综合方法在数据稀缺的情况下显著提高了命名实体识别能力.
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