Assessing Post-hoc Explainability of the BKT Algorithm
Assessing Post-hoc Explainability of the BKT Algorithm
复制标题
评估 BKT 算法的事后可解释性
DOI:
10.1145/3375627.3375856
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Howley, Iris
中科院分区:
文献类型:
--
作者:
Zhou, Tongyu;Sheng, Haoyu;Howley, Iris
As machine intelligence is increasingly incorporated into educational technologies, it becomes imperative for instructors and students to understand the potential flaws of the algorithms on which their systems rely. This paper describes the design and implementation of an interactive post-hoc explanation of the Bayesian Knowledge Tracing algorithm which is implemented in learning analytics systems used across the United States. After a user-centered design process to smooth out interaction design difficulties, we ran a controlled experiment to evaluate whether the interactive or static version of the explainable led to increased learning. Our results reveal that learning about an algorithm through an explainable depends on users' educational background. For other contexts, designers of post-hoc explainables must consider their users' educational background to best determine how to empower more informed decision-making with AI-enhanced systems.
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DOI:
--
发表时间:
2018
期刊:
ACM Conference on Learning @ Scale
影响因子:
--
作者:
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2007
期刊:
Ubiquitous Computing
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DOI:
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2009
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1997-09
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