Eun Young Ha Rowe, J. P., Ha, E. Y., & Lester, J. C. Archetype-driven character dialogue generation for interactive narrative. Intelligent virtual agents, proceedings, 5208, 45–58. Boyer, K. E., Ha, E. Y., Wallis, M. D., Phillips, R., Vouk, M. A., & Lester, J. C. Discovering tutorial dialogue strategies with hidden Markov models. Artificial intelligence in education - building learnning systems that care: from knowledge representation to affective modelling , 200, 141–148.