James C. Lester

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The Persona Effect: Affective Impact of Animated Pedagogical Agents

James C. Lester, Sharolyn A. Converse, Susan H. Kahler, S. Todd Barlow, Brian A. Stone, Ravinder S. Bhogal
CHI
1997

Animated pedagogical agents that inhabit interactive learning environments can exhibit strikingly lifelike behaviors. In addition to providing problem-solving advice in response to students’… (More)

Narrative Prose Generation

Narrative generation has historically su ered from poor writing quality, stemming from a narrow focus on story grammars and plot design. Moreover, to-date natural language generation systems have not… (More)

Modeling Learner Affect with Theoretically Grounded Dynamic Bayesian Networks

Jennifer Sabourin, Bradford W. Mott, James C. Lester
ACII
2011

Evidence of the strong relationship between learning and emotion has fueled recent work in modeling affective states in intelligent tutoring systems. Many of these models are based on general models… (More)

Lifelike Pedagogical Agents for Mixed-initiative Problem Solving in Constructivist Learning Environments

James C. Lester, Brian A. Stone, Gary D. Stelling
User Modeling and User-Adapted Interaction
1999

Mixed-initiative problem solving lies at the heart of knowledge- based learning environments. While learners are actively engaged in problem-solving activities, learning environments should monitor… (More)

Deictic Believability: Coordinated Gesture, Locomotion, and Speech in Lifelike Pedagogical Agents

James C. Lester, Jennifer L. Voerman, Stuart G. Towns, Charles B. Callaway
Applied Artificial Intelligence
1999

Lifelike animated agents for knowledge based learning environments can provide timely cus tomized advice to support students problem solving Because of their strong visual presence they hold signi… (More)

U-director: a decision-theoretic narrative planning architecture for storytelling environments

Recent years have seen significant growth in work on interactive storytelling environments. A key challenge posed by these environments is narrative planning, in which a director agent orchestrates… (More)

Affect and Engagement in Game-BasedLearning Environments

Jennifer Sabourin, James C. Lester
IEEE Transactions on Affective Computing
2014

The link between affect and student learning has been the subject of increasing attention in recent years. Affective states such as flow and curiosity tend to have positive correlations with learning… (More)

Increasing Believability in Animated Pedagogical Agents

Animated pedagogical agents o er great promise for knowledge based learning environments In addition to coupling feedback capabilities with a strong visual presence these agents play a critical role… (More)

Modeling and evaluating empathy in embodied companion agents

Scott W. McQuiggan, James C. Lester
Int. J. Hum.-Comput. Stud.
2007

Affective reasoning plays an increasingly important role in cognitive accounts of social interaction. Humans continuously assess one another's situational context, modify their own affective state… (More)

Evaluating the consequences of affective feedback in intelligent tutoring systems

Jennifer L. Robison, Scott W. McQuiggan, James C. Lester
2009 3rd International Conference on Affective…
2009

The link between affect and student learning has been the subject of increasing attention in recent years. Because of the possible impacts of affective state on learning, it is a goal of many… (More)

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