Conference and Journal Publications

• Daniel Weitekamp, Erik Harpstead, and Kenneth R Koedinger Toward Stable Asymptotic Learning with Simulated Learners. Proceedings of the 22nd International Conference on Artificial Intelligence in Education – AIED ‘21, Online, 2021. (pdf)
• Xinying Hou, Huy Anh Nguyen, J. Elizabeth Richey, Erik Harpstead, Jessica Hammer, and Bruce M. McLaren. Assessing the Effects of Open Models of Learning and Enjoyment in a Digital Learning Game. International Journal of Artificial Intelligence in Education. 1-31. 2021 (pdf)
• Viktoria Pammer-Schindler, Erik Harpstead, Benjamin Xie, Betsy DiSalvo, Ahmed Kharrufa, Petr Slovak, Amy Ogan, Joseph Jay Williams, and Michael J Lee Learning and education in HCI: A Reflection on the SIG at CHI 2019. Interactions 27, 5:6-7. 2020. (html)
• Daniel Weitekamp III, Zihuiwen Ye, Napol Rachatasumrit, Erik Harpstead and Kenneth Koedinger. Investigating Differential Error Types between Human and Simulated Learners. Proceedings of the 21st International Conference on Artificial Intelligence in Education – AIED ‘20, Iframe, Morocco, July 6-10, 2020. (pdf)
• Kenneth Holstein, Erik Harpstead, Rebecca Gulotta, and Jodi Forlzzi. Replay Enactments: Exploring Possible Futures through Historical Data. Proceedings of the 2020 on Designing Interactive Systems Conference - DIS '20, Eindhoven, Netherlands, July 6-10, 2020. (pdf)
• Daniel Weitekamp III, Erik Harpstead, and Kenneth R. Koedinger An Interaction Design for Machine Teaching to Develop AI Tutors Proceedings of the 2020 SIGCHI Conference on Human Factors in Computing Systems – CHI ’20 Honolulu, Hawai’i USA, April 2020. (pdf)
• Joseph Seering, Ray Mayol, Erik Harpstead, Tianying Chen, Amy Cook, and Jessica Hammer Peer Feedback Processes in the Game Industry Proceedings of the Annual Symposium on Computer-Human Interaction in Play - CHI Play ‘19, Barcelona, Spain, October 2019. (pdf)
• Erik Harpstead, Juan Sebastian Rios, Joseph Seering, and Jessica Hammer Toward a Twitch Research Toolkit: A Systematic Review of Approaches to Research on Game Streaming Proceedings of the Annual Symposium on Computer-Human Interaction in Play - CHI Play ‘19, Barcelona, Spain, October 2019. (pdf)
• Daniel Weitekamp III, Erik Harpstead, Christopher J MacLellan, Napol Rachatasumrit, Kenneth R Koedinger Toward Near Zero-Parameter Prediction Using a Computational Model of Student Learning Proceedings of the 12th International Conference on Educational Data Mining – EDM ’19, Montreal, Canada, June 27-July 6, 2019. pp. 456-461. (pdf)
• Yeyu Wang, Huy Nguyen, Erik Harpstead, John Stamper, and Bruce M. McLaren How Does Order of Gameplay Impact Learning and Enjoyment in a Digital Learning Game? Proceedings The 20th International Conference on Artificial Intelligence in Education – AIED ‘19 Chicago, IL USA, June 25-29. (pdf)
• Erik Harpstead, J. Elizabeth Richey, Huy Nguyen, and Bruce M. McLaren "Exploring the Subtleties of Agency and Indirect Control in Digital Learning Games" Proceedings of the International Conference on Learning Analytics and Knowledge – LAK ‘19, Tempe, Arizona USA, March 2019. (pdf)
• Christopher J. MacLellan, Erik Harpstead, Robert P. Marinier III, and Kenneth R. Koedinger “A Framework for Natural Cognitive System Training Interactions” Advances in Cognitive Systems, 6, 2018. pp. 177-192. (pdf)
• Huy Nguyen, Erik Harpstead, Yeyu Wang, and Bruce M. Mclaren “Student Agency and Game-Based Learning: A Study Comparing Low and High Agency” Proceedings of the 19th International Conference on Artificial Intelligence in Education – AIED ’18, London, UK, June 25-30, 2018. (pdf)
• Kelly Rivers, Erik Harpstead, and Kenneth R. Koedinger, “Learning Curve Analysis for Programming: Which Concepts do Students Struggle With?” Proceedings of the International Computing Education Research Workshop – ICER ’16, Melbourne, Australia, September 8-12, 2016. pp. 143-151. (pdf)
• Catherine Chase, Erik Harpstead, and Vincent Aleven, “Inciting out-of-game transfer: Adapting contrast-based instruction for educational games,” Proceedings of the Games+Learning+Society Conference 12.0 – GLS 12.0. Madison, WI, August 17-19, 2016. (pdf)
• Christopher J. MacLellan, Erik Harpstead, Rony Patel, and Kenneth R. Koedinger, "The Apprentice Learner Architecture: Closing the loop between learning theory and educational data," Proceedings of the 9th International Conference on Educational Data Mining – EDM ’16, Raleigh, NC, June 29-July 2, 2016. pp. 151-158. (pdf)
• Christopher J. MacLellan, Erik Harpstead, Vincent Aleven, and Kenneth R. Koedinger, “TRESTLE: A Model of Concept Formation in Structured Domains,” Advances in Cognitive Systems, 4, 2016. pp. 131-150. (pdf)
• Erik Harpstead and Vincent Aleven, “Using Empirical Learning Curve Analysis to Inform Design in an Educational Game,” Proceedings of the ACM SIGCHI Annual Symposium on Computer-Human Interaction in Play – CHIPLAY ’15, London, UK, October 3-5, 2015. pp. 197-207. (pdf)
• Erik Harpstead, Thomas Zimmermann, Nachiappan Nagapan, Jose Guajardo, Ryan Cooper, Tyson Solberg, and Dan Greenawalt, “What Drives People: Creating Engagement Profiles of Players from Game Log Data,” Proceedings of the ACM SIGCHI Annual Symposium on Computer-Human Interaction in Play – CHIPLAY ‘15, London, UK, October 3-5, 2015. pp. 369-379. (pdf)
• Christopher J. MacLellan, Erik Harpstead, Vincent Aleven, and Kenneth R. Koedinger, “TRESTLE: Incremental Learning in Structured Domains using Partial Matching and Categorization,” Proceedings of the Third Annual Conference on Advances in Cognitive Systems – ACS ’15, Atlanta, Georgia, USA, May 28-31, 2015. p. 13. (pdf)
• Erik Harpstead, Christopher J. MacLellan, Vincent Aleven, Brad A. Myers, “Using Extracted Features to Inform Alignment-Driven Design Ideas in an Educational Game,” Proceedings of the 32nd SIGCHI Conference on Human Factors in Computing Systems – CHI ’14, Toronto, Canada, April 26-May 1, 2014. pp. 3329-3338. (pdf)
• Erik Harpstead, Christopher J. MacLellan, Kenneth R. Koedinger, Vincent Aleven, Steven P. Dow, and Brad A. Myers, “Investigating the Solution Space of an Open-Ended Educational Game Using Conceptual Feature Extraction,” Proceedings of the 6th International Conference on Educational Data Mining – EDM ‘13, Memphis, Tennessee, July 6-9, 2013. pp. 51-58. (pdf)
• Vincent Aleven, Steven Dow, Michael Christel, Scott Stevens, Carolyn Rosé, Kenneth Koedinger, Brad Myers, Julia Brynn Flynn, Zane Hintzman, Erik Harpstead, Soyeon Hwang, Derek Lomas, Chris Reid, Mitra Fathollahpour, Amos Glenn, Jonathan Sewall, John Balash, Nora Bastida, Chandana Bhargava, Sean Brice, Matt Champer, Samantha Collier, Jingyi Feng, Danny Hausmann, Meng Hui Koh, Weiwei Huo, Qianru Ma, Bryan Maher, Weichuan Tian, and Xun Zhang, “Supporting Social-Emotional Development in Collaborative Inquiry Games for K-3 Science Learning”, Proceedings of the Games+Learning+Society Conference 9.0 – GLS 9.0, Madison, WI, June 12-14, 2013. pp. 53-60. (pdf)
• Erik Harpstead, Brad A. Myers, and Vincent Aleven, "In Search of Learning: Facilitating Data Analysis in Educational Games," Proceedings of the 31st SIGCHI Conference on Human Factors in Computing Systems – CHI ’13, Paris, France, April 27-May 2, 2013. pp. 79-88. (pdf)
• Mike G. Christel, Scott M. Stevens, Bryan S. Maher, Sean Brice, Matthew Champer, Luke Jayapalan, Qiaosi Chen, Jing Jin, Daniel Hausmann, Nora Bastida, Xun Zhang, Vincent Aleven, Kenneth R. Koedinger, Catherine Chase, Erik Harpstead, and Derek Lomas. “RumbleBlocks: Teaching Science Concepts to Young Children through a Unity Game,” Proceedings of the 17th International Conference on Computer Games – CGames 2012, Louisville, Kentucky, July 30-August 1, 2012. pp. 162-166. (pdf)

Book Chapters

• Erik Harpstead, Christopher J. MacLellan, Vincent Aleven, Brad A. Myers, “Replay analysis in open-ended educational games,” Serious Game Analytics: Methodologies for Performance Measurement, Assessment, and Improvement. Christian S. Loh, Yanyan Sheng, and Dirk Ifenthaler (Eds.) 2015. pp. 381-399. (link)

Other Publications

• Noor Hammad, Erik Harpstead, and Jessica Hammer Towards Examining the Effects of Live Streaming an Educational Game Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems Online, 2021. (html)
• Erik Harpstead and Jessica Hammer, Toward Game Aware Streaming Interfaces CHI ’20 Workshop on Be Part Of It: Spectator Experience in Gaming and eSports Online, April 27, 2020. (pdf)
• David Gagnon, Erik Harpstead, Vishesh Kumar, Elizabeth Owen, Dennis Ramirez, and Stefan Slater Game Data Analysis to Understand Players, Design, and Learning Symposium at the Connected Learning Summit – CLS 2019 Irvine, CA, October 2-5, 2019
• David Gagnon, Erik Harpstead, and Stefan Slater Comparison of Off the Shelf Data Mining Methodologies in Educational Game Analytics EDM '19 Workshop on EDM & Games: Levelling Up Engaged Learning with Data-Rich Analytics Montreal, Canada, July 2, 2019
• Erik Harpstead, Daniel Weitekamp III, Chrisopher J. MacLellan, and Kenneth R. Koedinger The Use of Simulated Learners in Adaptive Education 3rd International Conference on AI + Adaptive Education Beijing, China, May 24-25, 2019.
• Benjamin Xie, Erik Harpstead, Betsy DiSalvo, Petr Slovak, Ahmed Kharrufa, Michael J. Lee, Viktoria Pammer-Schindler, Amy Ogan, and Joseph Jay Williams Learning, Education, and HCI Special Interest Group in CHI ’19 Extended Abstracts on Human Factors in Computing Systems – CHI EA ’19. Glasgow, UK, (to appear) (pdf) More Information.
• Erik Harpstead, Christopher J. MacLellan Visualizing the Solution Space of Educational Games using TRESTLE Companion Proceedings 9th International Conference on Learning Analytics & Knowledge – LAK '19 Tempe, Arizona USA, March 2019. (pdf)
• Erik Harpstead, Christopher J. MacLellan, Robert P. Marinier III, and Kenneth R. Koedinger "Towards Natural Cognitive System Training Interactions: A Preliminary Framework" Designing the User Experience of Artificial Intelligence as part of the 2018 AAAI Spring Symposium. Stanford, CA, 2018. (pdf)
• Erik Harpstead, “Projective Replay Analysis: Using Cognitive Systems to Drive Evaluation of Educational Games,” 2nd Annual Students of Cognitive Systems Workshop at the Advances in Cognitive Systems Conference – SOCS ’16, Evanston, IL, June 23, 2016. (pdf)
• Erik Harpstead, Christopher J. MacLellan, and Vincent Aleven, “Discovering Knowledge Models in an Open-ended Educational Game using Concept Formation,” 6th International Workshop on Intelligent Support in Exploratory and Open-Ended Learning Environments at the 17th International Conference on Artificial Intelligence in Education – AIED ’15, Madrid, Spain, June 22, 2015. (pdf)
• Christopher J. MacLellan, Erik Harpstead, Elian Stampfer Wiese, Mengfan Zou, Noboru Matsuda, Vincent Aleven, and Kenneth R. Koedinger, “Authoring Tutors with Complex Solutions: A Comparative Analysis of Example Tracing and SimStudent,” Workshop on Simulated Learners at the 17th International Conference on Artificial Intelligence in Education – AIED ’15, Madrid, Spain, June 26, 2015. (pdf)
• Erik Harpstead, Christopher J. MacLellan, Vincent Aleven, and Kenneth R. Koedinger, “Using Data to Explore the Differences between Instructional Vision and Student Performance,” Workshop on Learning Innovation at Scale at the 32nd SIGCHI Conference on Human Factors in Computing Systems – CHI ’14, Toronto, Canada, April 27, 2014. (pdf)
• Erik Harpstead, “A Potential Future for Games: Appropriated Interfaces,” Game Jam at the 31st SIGCHI Conference on Human Factors in Computing Systems – CHI ‘13, Paris, France, May 27-28, 2013. (pdf)
• Derek Lomas and Erik Harpstead, “Design Space Sampling for the Optimization of Online Educational Games,” Workshop on Game User Research at the 30th SIGCHI Conference on Human Factors in Computing Systems – CHI ’12, Austin, Texas, May 5-6, 2012 (pdf)