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arXiv 2201.12549cs.CL
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一种简单的基于信息的无监督领域自适应情感分析情感分析方法

A Simple Information-Based Approach to Unsupervised Domain-Adaptive Aspect-Based Sentiment Analysis

Wangxuan Institute of Computer Technology, Peking University(北京大学王选计算机技术研究所);Center for Data Science, Peking University(北京大学数据科学中心);The MOE Key Laboratory of Computational Linguistics, Peking University(北京大学教育部计算语言学重点实验室)

Xiang Chen, Xiaojun Wan

摘要:

基于语义的情感分析(ABSA)是一种细粒度的情感分析任务,其目的是从句子中提取体并识别其对应的情感。特征项提取是ABSA的关键步骤。由于方面术语的昂贵注释,我们经常缺乏用于微调的标记目标域数据。为了解决这个问题,最近已经提出了许多方法来以无监督的方式传递公共知识,但这些方法具有太多的模块,并且需要昂贵的多阶段预处理。在本文中,我们提出了一个简单而有效的技术的基础上互信息最大化,它可以作为一个额外的组件,以提高任何类型的跨域ABSA和ATE模型。此外,我们还对这种方法进行了一些分析。实验结果表明,我们提出的方法优于国家的最先进的跨域ABSA方法的4. 32% Micro-F1平均超过10个不同的域对。除此之外,我们的方法可以扩展到其他序列标记任务,如命名实体识别(NER)。

英文摘要:

Aspect-based sentiment analysis (ABSA) is a fine-grained sentiment analysis task which aims to extract the aspects from sentences and identify their corresponding sentiments. Aspect term extraction (ATE) is the crucial step for ABSA. Due to the expensive annotation for aspect terms, we often lack labeled target domain data for fine-tuning. To address this problem, many approaches have been proposed recently to transfer common knowledge in an unsupervised way, but such methods have too many modules and require expensive multi-stage preprocessing. In this paper, we propose a simple but effective technique based on mutual information maximization, which can serve as an additional component to enhance any kind of model for cross-domain ABSA and ATE. Furthermore, we provide some analysis of this approach. Experiment results show that our proposed method outperforms the state-of-the-art methods for cross-domain ABSA by 4.32% Micro-F1 on average over 10 different domain pairs. Apart from that, our method can be extended to other sequence labeling tasks, such as named entity recognition (NER).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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