no code implementations • 23 Apr 2023 • Mark Abdelshiheed, John Wesley Hostetter, Tiffany Barnes, Min Chi
This work leverages Deep Reinforcement Learning (DRL) in providing adaptive metacognitive interventions to bridge the gap between the three knowledge types and prepare students for future learning across Intelligent Tutoring Systems (ITSs).
no code implementations • 17 Apr 2023 • Mark Abdelshiheed, John Wesley Hostetter, Tiffany Barnes, Min Chi
In two consecutive semesters, we conducted two classroom experiments: Exp.
no code implementations • 18 Mar 2023 • Mark Abdelshiheed, John Wesley Hostetter, Xi Yang, Tiffany Barnes, Min Chi
In this work, students were trained on a logic tutor that supports a default forward-chaining (FC) and a backward-chaining (BC) strategy.
no code implementations • 18 Mar 2023 • Mark Abdelshiheed, John Wesley Hostetter, Preya Shabrina, Tiffany Barnes, Min Chi
Deductive domains are typical of many cognitive skills in that no single problem-solving strategy is always optimal for solving all problems.
no code implementations • 27 Jul 2022 • Preya Shabrina, Behrooz Mostafavi, Mark Abdelshiheed, Min Chi, Tiffany Barnes
Backward problem-solving strategy is closely related to the process of subgoaling, where problem solving iteratively refines the goal into a new subgoal to reduce difficulty.
no code implementations • 7 Jul 2022 • Mehak Maniktala, Min Chi, Tiffany Barnes
In this paper, we present a novel data-driven approach to incorporate students' hint usage in predicting their need for help.
1 code implementation • 7 Jun 2022 • Yang Shi, Min Chi, Tiffany Barnes, Thomas Price
Knowledge tracing (KT) models are a popular approach for predicting students' future performance at practice problems using their prior attempts.
no code implementations • 8 Oct 2020 • Mehak Maniktala, Christa Cody, Amy Isvik, Nicholas Lytle, Min Chi, Tiffany Barnes
A core problem in solving the assistance dilemma is the need to discover when students are unproductive so that the tutor can intervene.
no code implementations • 28 Sep 2020 • Mehak Maniktala, Christa Cody, Tiffany Barnes, Min Chi
Within intelligent tutoring systems, considerable research has investigated hints, including how to generate data-driven hints, what hint content to present, and when to provide hints for optimal learning outcomes.
no code implementations • 15 Apr 2019 • Niki Gitinabard, Yiqiao Xu, Sarah Heckman, Tiffany Barnes, Collin F. Lynch
We also evaluate the models on different segments of the courses to determine how early reliable predictions can be made.
no code implementations • 3 Dec 2018 • Hengxuan Li, Collin F. Lynch, Tiffany Barnes
In this paper, we compare predictive models for students' final performance in a blended course using a set of generic features collected from the first six weeks of class.
no code implementations • 22 Aug 2017 • Benjamin Paaßen, Barbara Hammer, Thomas William Price, Tiffany Barnes, Sebastian Gross, Niels Pinkwart
In particular, we extend the Hint Factory by considering data of past students in all states which are similar to the student's current state and creating hints approximating the weighted average of all these reference states.