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arXiv 2106.04262cs.CLcs.AIcs.LG
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适应性教育的问题生成

Question Generation for Adaptive Education

Stanford University(斯坦福大学)

Megha Srivastava, Noah Goodman

摘要:

智能和自适应的在线教育系统旨在为各种学生提供高质量的教育。然而,现有的系统通常依赖于手工制作的问题池,限制了它们在适应个别学生方面的细粒度和开放性。我们探索有针对性的问题生成作为一个可控的序列生成任务。我们首先展示如何微调预训练的语言模型以进行深度知识跟踪(LM-KT)。该模型可以准确预测学生正确回答问题的概率,并推广到训练中没有看到的问题。然后,我们使用LM-KT来指定训练模型的目标和数据,以生成以学生和目标难度为条件的问题。我们的研究结果表明,我们成功地从一个真正的在线教育平台上为第二语言学习者生成了新颖的、校准良好的语言翻译问题。

英文摘要:

Intelligent and adaptive online education systems aim to make high-quality education available for a diverse range of students. However, existing systems usually depend on a pool of hand-made questions, limiting how fine-grained and open-ended they can be in adapting to individual students. We explore targeted question generation as a controllable sequence generation task. We first show how to fine-tune pre-trained language models for deep knowledge tracing (LM-KT). This model accurately predicts the probability of a student answering a question correctly, and generalizes to questions not seen in training. We then use LM-KT to specify the objective and data for training a model to generate questions conditioned on the student and target difficulty. Our results show we succeed at generating novel, well-calibrated language translation questions for second language learners from a real online education platform.

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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