Knowledge tracing is a fundamental task in the computer-aid educational system. In this paper, we propose a hierarchical exercise feature enhanced knowledge tracing framework, which could enhance the ability of knowledge tracing by incorporating knowledge distribution, semantic features, and difficulty features from exercise text. Extensive experiments show the high performance of our framework.

中文翻译：

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练习分层特征增强知识追踪

知识追踪是计算机辅助教育系统中的一项基本任务。在本文中，我们提出了一种分层练习特征增强的知识追踪框架，该框架可以通过结合练习文本的知识分布、语义特征和难度特征来增强知识追踪的能力。大量实验显示了我们框架的高性能。