arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.09283cs.CL
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低资源第二语言习得模型的多任务学习

Multi-task Learning for Low-resource Second Language Acquisition Modeling

School of Computer Science and Technology, Beijing Institute of Technology(北京理工大学计算机科学与技术学院);Baidu Inc.(百度公司);Beijing Language and Culture University(北京语言大学)

Yong Hu, Heyan Huang, Tian Lan, Xiaochi Wei, Yuxiang Nie, Jiarui Qi, Liner Yang, Xian-Ling Mao

摘要:

二语习得建模是根据学习者的所学知识预测学习者是否能正确回答问题。它是个性化学习系统的基本组成部分,近年来受到越来越多的关注。然而,据我们所知,几乎所有现有的方法不能很好地工作在低资源的情况下,由于缺乏训练数据。幸运的是,在不同的语言学习任务之间存在一些潜在的共同模式,这为我们解决低资源的二语习得建模问题提供了机会。受此思想的启发,本文提出了一种新的SLA建模方法,该方法通过多任务学习来学习不同语言学习数据集之间的潜在共同模式,并进一步应用于提高低资源场景下的预测性能。大量的实验表明,所提出的方法比国家的最先进的基线在低资源的情况下表现得更好。同时,在非低资源情况下,它也略有改善。

英文摘要:

Second language acquisition (SLA) modeling is to predict whether second language learners could correctly answer the questions according to what they have learned. It is a fundamental building block of the personalized learning system and has attracted more and more attention recently. However, as far as we know, almost all existing methods cannot work well in low-resource scenarios due to lacking of training data. Fortunately, there are some latent common patterns among different language-learning tasks, which gives us an opportunity to solve the low-resource SLA modeling problem. Inspired by this idea, in this paper, we propose a novel SLA modeling method, which learns the latent common patterns among different language-learning datasets by multi-task learning and are further applied to improving the prediction performance in low-resource scenarios. Extensive experiments show that the proposed method performs much better than the state-of-the-art baselines in the low-resource scenario. Meanwhile, it also obtains improvement slightly in the non-low-resource scenario.

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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