arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.08410cs.LGstat.ML
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自适应学习系统的深度强化学习

Deep Reinforcement Learning for Adaptive Learning Systems

University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校);Purdue University(普渡大学)

Xiao Li, Hanchen Xu, Jinming Zhang, Hua-hua Chang

摘要:

在本文中,我们制定的自适应学习问题-如何找到一个个性化的学习计划(称为政策),选择最合适的学习材料的基础上学习者的潜在特质-在自适应学习系统面临的马尔可夫决策过程(MDP)的问题。我们假设潜在特征是连续的,具有未知的过渡模型。我们应用了一种无模型的深度强化学习算法--深度Q-学习算法--它可以有效地从学习者学习过程的数据中找到最优的学习策略,而不需要知道学习者连续潜在特征的实际转换模型。为了有效地利用现有的数据,我们还开发了一个过渡模型估计,模拟学习者的学习过程中使用神经网络。转移模型估计器可以用于深度Q-学习算法中,使得它可以更有效地发现学习器的最优学习策略。数值仿真研究表明,该算法在寻找最优学习策略方面是非常有效的,特别是在过渡模型估计器的辅助下,它可以在使用少量学习器进行训练后找到最优学习策略。

英文摘要:

In this paper, we formulate the adaptive learning problem---the problem of how to find an individualized learning plan (called policy) that chooses the most appropriate learning materials based on learner's latent traits---faced in adaptive learning systems as a Markov decision process (MDP). We assume latent traits to be continuous with an unknown transition model. We apply a model-free deep reinforcement learning algorithm---the deep Q-learning algorithm---that can effectively find the optimal learning policy from data on learners' learning process without knowing the actual transition model of the learners' continuous latent traits. To efficiently utilize available data, we also develop a transition model estimator that emulates the learner's learning process using neural networks. The transition model estimator can be used in the deep Q-learning algorithm so that it can more efficiently discover the optimal learning policy for a learner. Numerical simulation studies verify that the proposed algorithm is very efficient in finding a good learning policy, especially with the aid of a transition model estimator, it can find the optimal learning policy after training using a small number of learners.

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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