@inproceedings{islam_yang_hostetter_saha_chi_2024, title={A Generalized Apprenticeship Learning Framework for Modeling Heterogeneous Student Pedagogical Strategies}, booktitle={Proceedings of the 17th International Conference on Educational Data Mining}, author={Islam, M.M. and Yang, X. and Hostetter, J.W. and Saha, A.S. and Chi, M.}, year={2024} } @article{abdelshiheed_moulder_hostetter_barnes_chi_2024, title={Example, Nudge, or Practice? Assessing Metacognitive Knowledge Transfer of Factual and Procedural Learners}, volume={7}, ISSN={["1573-1391"]}, DOI={10.1007/s11257-024-09404-2}, journal={User Modeling and User-Adapted Interaction}, publisher={User Modeling and User-Adapted Interaction}, author={Abdelshiheed, M. and Moulder, R. and Hostetter, J.W. and Barnes, T. and Chi, M.}, year={2024} } @inproceedings{hostetter_abdelshiheed_barnes_chi_2023, title={A Self-Organizing Neuro-Fuzzy Q-Network: Systematic Design with Offline Hybrid Learning}, booktitle={Proceedings of the 22nd International Conference on Autonomous Agents and Multiagent Systems (AAMAS)}, author={Hostetter, John Wesley and Abdelshiheed, Mark and Barnes, Tiffany and Chi, Min}, year={2023} } @inproceedings{abdelshiheed_hostetter_barnes_chi_2023, title={Bridging Declarative, Procedural, and Conditional Metacognitive Knowledge Gap Using Deep Reinforcement Learning}, booktitle={Proceedings of the 45th annual conference of the cognitive science society}, author={Abdelshiheed, Mark and Hostetter, John Wesley and Barnes, Tiffany and Chi, Min}, year={2023} } @misc{hostetter_chi_2023, title={Latent Space Encoding for Interpretable Fuzzy Logic Rules in Continuous and Noisy High-Dimensional Spaces}, ISSN={["1544-5615"]}, url={http://dx.doi.org/10.1109/fuzz52849.2023.10309706}, DOI={10.1109/FUZZ52849.2023.10309706}, abstractNote={This study introduces a general approach for generating fuzzy logic rules in regression tasks with complex, high-dimensional input spaces. The method leverages the power of encoding data into a latent space, where its uniqueness is analyzed to determine whether it merits the distinction of becoming a noteworthy exemplar. The efficacy of the proposed method is showcased through its application in predicting the acceleration of one of the links for the Unimation Puma 560 robot arm, effectively overcoming the challenges posed by non-linearity and noise in the dataset.}, journal={2023 IEEE International Conference on Fuzzy Systems (FUZZ)}, publisher={IEEE}, author={Hostetter, John Wesley and Chi, Min}, year={2023}, month={Aug} } @inproceedings{hostetter_chi_2023, title={Latent Space Encoding for Interpretable Fuzzy Logic Rules in Continuous and Noisy High-Dimensional Spaces}, booktitle={2023 IEEE International Conference on Fuzzy Systems}, author={Hostetter, John Wesley and Chi, Min}, year={2023} } @inproceedings{abdelshiheed_hostetter_barnes_chi_2023, title={Leveraging Deep Reinforcement Learning for Metacognitive Interventions across Intelligent Tutoring Systems}, note={\bf (Nominated for Best [& Best Student] Paper)}, booktitle={Proceedings of the 24th International Conference on Artificial Intelligence in Education}, author={Abdelshiheed, Mark and Hostetter, John Wesley and Barnes, Tiffany and Chi, Min}, year={2023} } @misc{abdelshiheed_hostetter_barnes_chi_2023, title={Leveraging Deep Reinforcement Learning for Metacognitive Interventions Across Intelligent Tutoring Systems}, volume={13916}, ISBN={9783031362712 9783031362729}, ISSN={0302-9743 1611-3349}, url={http://dx.doi.org/10.1007/978-3-031-36272-9_24}, DOI={10.1007/978-3-031-36272-9_24}, abstractNote={This work compares two approaches to provide metacognitive interventions and their impact on preparing students for future learning across Intelligent Tutoring Systems (ITSs). In two consecutive semesters, we conducted two classroom experiments: Exp. 1 used a classic artificial intelligence approach to classify students into different metacognitive groups and provide static interventions based on their classified groups. In Exp. 2, we leveraged Deep Reinforcement Learning (DRL) to provide adaptive interventions that consider the dynamic changes in the student's metacognitive levels. In both experiments, students received these interventions that taught how and when to use a backward-chaining (BC) strategy on a logic tutor that supports a default forward-chaining strategy. Six weeks later, we trained students on a probability tutor that only supports BC without interventions. Our results show that adaptive DRL-based interventions closed the metacognitive skills gap between students. In contrast, static classifier-based interventions only benefited a subset of students who knew how to use BC in advance. Additionally, our DRL agent prepared the experimental students for future learning by significantly surpassing their control peers on both ITSs.}, journal={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland}, author={Abdelshiheed, Mark and Hostetter, John Wesley and Barnes, Tiffany and Chi, Min}, year={2023}, pages={291–303} } @misc{hostetter_abdelshiheed_barnes_chi_2023, title={Leveraging Fuzzy Logic Towards More Explainable Reinforcement Learning-Induced Pedagogical Policies on Intelligent Tutoring Systems}, ISSN={["1544-5615"]}, url={http://dx.doi.org/10.1109/fuzz52849.2023.10309741}, DOI={10.1109/FUZZ52849.2023.10309741}, abstractNote={Deep Reinforcement Learning (Deep RL) has revolutionized the field of Intelligent Tutoring Systems by providing effective pedagogical policies. However, the “black box” nature of Deep RL models makes it challenging to understand these policies. This study tackles this challenge by applying fuzzy logic to distill knowledge from Deep RL-induced policies into interpretable IF-THEN Fuzzy Logic Controller (FLC) rules. Our experiments show that these FLC policies significantly outperform expert policy and student decisions, demonstrating the effectiveness of our approach. We propose a Temporal Granule Pattern (TGP) mining algorithm to increase the FLC rules' interpretability further. This work highlights the potential of fuzzy logic and TGP analysis to enhance understanding of Deep RL-induced pedagogical policies.}, journal={2023 IEEE International Conference on Fuzzy Systems (FUZZ)}, publisher={IEEE}, author={Hostetter, John Wesley and Abdelshiheed, Mark and Barnes, Tiffany and Chi, Min}, year={2023}, month={Aug} } @inproceedings{hostetter_abdelshiheed_barnes_chi_2023, title={Leveraging Fuzzy Logic Towards More Explainable Reinforcement Learning-Induced Pedagogical Policies on Intelligent Tutoring Systems}, booktitle={2023 IEEE International Conference on Fuzzy Systems}, author={Hostetter, John Wesley and Abdelshiheed, Mark and Barnes, Tiffany and Chi, Min}, year={2023} } @inproceedings{hostetter_conati_yang_abdelshiheed_barnes_chi_2023, place={Germany}, title={XAI to Increase the Effectiveness of an Intelligent Pedagogical Agent}, url={https://doi.org/10.1145/3570945.3607301}, DOI={10.1145/3570945.3607301}, abstractNote={We explore eXplainable AI (XAI) to enhance user experience and understand the value of explanations in AI-driven pedagogical decisions within an Intelligent Pedagogical Agent (IPA). Our real-time and personalized explanations cater to students' attitudes to promote learning. In our empirical study, we evaluate the effectiveness of personalized explanations by comparing three versions of the IPA: (1) personalized explanations and suggestions, (2) suggestions but no explanations, and (3) no suggestions. Our results show the IPA with personalized explanations significantly improves students' learning outcomes compared to the other versions.}, booktitle={Proceedings of the 23rd ACM International Conference on Intelligent Virtual Agents. (IVA’23)}, author={Hostetter, J.W. and Conati, C. and Yang, X. and Abdelshiheed, M. and Barnes, T. and Chi, M.}, year={2023} } @inproceedings{hostetter_conati_yang_abdelshiheed_barnes_chi_2023, title={XAI to Increase the Effectiveness of an Intelligent Pedagogical Agent}, booktitle={Proceedings of the 23rd ACM International Conference on Intelligent Virtual Agents}, publisher={Association for Computing Machinery}, author={Hostetter, John Wesley and Conati, Cristina and Yang, Xi and Abdelshiheed, Mark and Barnes, Tiffany and Chi, Min}, year={2023} } @inproceedings{abdelshiheed_hostetter_yang_barnes_chi_2022, title={Mixing Backward-with Forward-Chaining for Metacognitive Skill Acquisition and Transfer}, booktitle={International Conference on Artificial Intelligence in Education}, author={Abdelshiheed, Mark and Hostetter, John Wesley and Yang, Xi and Barnes, Tiffany and Chi, Min}, year={2022}, pages={546–552} } @inproceedings{abdelshiheed_hostetter_shabrina_barnes_chi_2022, title={The Power of Nudging: Exploring Three Interventions for Metacognitive Skills Instruction across Intelligent Tutoring Systems}, volume={44}, booktitle={Proceedings of the 44th annual conference of the cognitive science society}, author={Abdelshiheed, Mark and Hostetter, John Wesley and Shabrina, Preya and Barnes, Tiffany and Chi, Min}, year={2022} }