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James Lester

6 accepted papers

2026

A Dialogue-Based Learning Analytics Framework for Collaborative Game-Based Learning

AAAI 2026technical

In computer-supported collaborative learning environments, analyzing student dialogue is essential for understanding collaborative problem-solving behaviors and supporting effective learning. Prior work often treats all dialogue interactions uniformly, failing to capture how specific dialogue intera

Cited by 0SourcePDFScholar
2026

An Explanation-Based Classroom Response System for Real-Time Analysis of Undergraduate Students’ Natural Language Explanations

AAAI 2026technical

Effective classroom teaching requires instructors to be responsive to their students, such as by pivoting their lectures in real-time to address common misconceptions that their students may have developed. Classroom response systems such as multiple-choice "clicker" systems are one method by which

Cited by 0SourcePDFScholar
2024

Dual Process Masking for Dialogue Act Recognition

EMNLP 2024finding

Dialogue act recognition is the task of classifying conversational utterances based on their communicative intent or function. To address this problem, we propose a novel two-phase processing approach called Dual-Process Masking. This approach streamlines the task by masking less important tokens in…

2024

Online Reinforcement Learning-Based Pedagogical Planning for Narrative-Centered Learning Environments

AAAI 2024technical

Pedagogical planners can provide adaptive support to students in narrative-centered learning environments by dynamically scaffolding student learning and tailoring problem scenarios. Reinforcement learning (RL) is frequently used for pedagogical planning in narrative-centered learning environments.…

Cited by 1SourcePDFScholar
2024

Supporting Upper Elementary Students in Learning AI Concepts with Story-Driven Game-Based Learning

AAAI 2024technical

Artificial intelligence (AI) is quickly finding broad application in every sector of society. This rapid expansion of AI has increased the need to cultivate an AI-literate workforce, and it calls for introducing AI education into K-12 classrooms to foster students’ awareness and interest in AI. With…

Cited by 3SourcePDFScholar
2023

Improving Classroom Dialogue Act Recognition from Limited Labeled Data with Self-Supervised Contrastive Learning Classifiers

ACL 2023findings

Recognizing classroom dialogue acts has significant promise for yielding insight into teaching, student learning, and classroom dynamics. However, obtaining K-12 classroom dialogue data with labels is a significant challenge, and therefore, developing data-efficient methods for classroom dialogue ac…

Cited by 3SourcePDFScholar