美团SemEval 2022结构化情感分析跨语言赛道冠军方法总结
总第547 篇
2022年 第064篇
- 1. 背景
- 2. 赛题简介
- 数据介绍
- 评估指标
- 3. 现有方法和问题
- 4. 我们的方法
- 5. 方法实现和实验分析
- 5.1 模型选择
- 5.2 数据增强
- 5.3 辅助任务
- 6. 与其他参赛队伍效果对比
- 7. 总结
1. 背景
2. 赛题简介
- Monolingual任务 :已知测试集的语种,允许使用相同语种的有标签数据进行训练。总分取七个数据集的宏平均 Sentiment F1 。
-
Crosslingual任务 :不允许使用和测试集语种相同语言的有标签数据进行训练( 测评数据集是其中的三个小语种数据集 - 西班牙语,加泰罗尼亚语,巴斯克语 )。
数据介绍
-
计算观点元组精准率时, -
计算观点元组召回率时, -
最终的Sentiment Graph F1 (SF1)为
3. 现有方法和问题
结构化情感分析任务的主流方法是采用流水线的方式,分别进行Holder、Target和Expression的信息抽取等子任务,再进行情感分类。然而,这样的方法不能捕获多个子任务之间的依赖关系,且存在任务的误差传播。4. 我们的方法
5. 方法实现和实验分析
5.1 模型选择
我们使用官方发布的开发集作为测试集,将原始训练集随机拆分为训练集和开发集。并保持拆分开发集的大小与官方发布的开发集相同。
5.2 数据增强
数据增强(DA1)- 同领域数据合并5.3 辅助任务
6. 与其他参赛队伍效果对比
7. 总结
8. 本文作者
陈聪、见耸、刘操、杨帆、广鲁、今雄等,均来自美团平台/语音交互部。9. 参考文献
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Multilingual stance detection: The catalonia independence corpus. arXiv preprint arXiv:2004.00050. ---------- END ---------- 招聘信息 语音交互部负责美团语音和对话技术研发,面向美团业务及生态系统内B端、C端合作伙伴,提供语音技术与对话交互技术能力支持和产品应用。经过多年研发积累,团队在语音识别、合成、口语理解、智能问答和多轮交互等技术上已建成大规模的技术平台服务,并研发包括外呼机器人、智能客服、语音内容分析等解决方案和产品,在美团丰富的业务场景中广泛落地。语音交互部长期招聘自然语言处理算法工程师、算法专家,感兴趣的同学可以将简历发送至 [email protected] 。美团科研合作
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