arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2106.04847cs.CL
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UniKeyphrase:一个用于关键词预测的统一抽取和生成框架

UniKeyphrase: A Unified Extraction and Generation Framework for Keyphrase Prediction

Tencent AI Platform Department(腾讯AI平台部);Beijing University of Posts and Telecommunications(北京邮电大学)

Huanqin Wu, Wei Liu, Lei Li, Dan Nie, Tao Chen, Feng Zhang, Di Wang

摘要:

关键词预测(KP)任务的目的是预测几个关键词,可以概括给定文档的主要思想。主流的KP方法可以分为纯生成方法和具有提取和生成的集成模型。然而,这些方法要么忽略了关键词之间的多样性,要么只弱捕捉任务之间的关系隐式。在本文中,我们提出了UniKeyphrase,这是一种新型的端到端学习框架,可以联合学习提取和生成关键词。在UniKeyphrase中,分别从模型结构和训练过程的角度,提出了堆叠关系层和词袋约束,充分挖掘抽取和生成之间的潜在语义关系。KP基准测试的实验表明,我们的联合方法优于主流方法的大幅度。

英文摘要:

Keyphrase Prediction (KP) task aims at predicting several keyphrases that can summarize the main idea of the given document. Mainstream KP methods can be categorized into purely generative approaches and integrated models with extraction and generation. However, these methods either ignore the diversity among keyphrases or only weakly capture the relation across tasks implicitly. In this paper, we propose UniKeyphrase, a novel end-to-end learning framework that jointly learns to extract and generate keyphrases. In UniKeyphrase, stacked relation layer and bag-of-words constraint are proposed to fully exploit the latent semantic relation between extraction and generation in the view of model structure and training process, respectively. Experiments on KP benchmarks demonstrate that our joint approach outperforms mainstream methods by a large margin.

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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