arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1907.03752cs.CLcs.IRcs.LG
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通过全局增强方法改进短文本分类

Improving short text classification through global augmentation methods

University of Pretoria(比勒陀利亚大学);Council for Scientific and Industrial Research(科学与工业研究委员会)

Vukosi Marivate, Tshephisho Sefara

摘要:

我们研究了不同的文本增强方法的效果。为此,我们使用了3个数据集,包括社交媒体和新闻文章形式的正式文本。我们的目标是为从业者和研究人员提供关于选择分类用例增强的见解。我们观察到,基于Word2vec的增强是一个可行的选择,当一个人不能访问一个正式的同义词模型(如基于WordNet的增强)。\emph{mixup}的使用进一步提高了所有基于文本的增强的性能,并减少了过拟合对测试的深度学习模型的影响。由于成本问题,使用翻译服务的往返翻译被证明更难使用,因此对于正常和低资源用例来说都不太容易获得。

英文摘要:

We study the effect of different approaches to text augmentation. To do this we use 3 datasets that include social media and formal text in the form of news articles. Our goal is to provide insights for practitioners and researchers on making choices for augmentation for classification use cases. We observe that Word2vec-based augmentation is a viable option when one does not have access to a formal synonym model (like WordNet-based augmentation). The use of \emph{mixup} further improves performance of all text based augmentations and reduces the effects of overfitting on a tested deep learning model. Round-trip translation with a translation service proves to be harder to use due to cost and as such is less accessible for both normal and low resource use-cases.

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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