Bradford Mott


Disruptive Talk Detection in Multi-Party Dialogue within Collaborative Learning Environments with a Regularized User-Aware Network
Kyungjin Park | Hyunwoo Sohn | Wookhee Min | Bradford Mott | Krista Glazewski | Cindy E. Hmelo-Silver | James Lester
Proceedings of the 23rd Annual Meeting of the Special Interest Group on Discourse and Dialogue

Accurate detection and appropriate handling of disruptive talk in multi-party dialogue is essential for users to achieve shared goals. In collaborative game-based learning environments, detecting and attending to disruptive talk holds significant potential since it can cause distraction and produce negative learning experiences for students. We present a novel attention-based user-aware neural architecture for disruptive talk detection that uses a sequence dropout-based regularization mechanism. The disruptive talk detection models are evaluated with multi-party dialogue collected from 72 middle school students who interacted with a collaborative game-based learning environment. Our proposed disruptive talk detection model significantly outperforms competitive baseline approaches and shows significant potential for helping to support effective collaborative learning experiences.


NCSU_SAS_WOOKHEE: A Deep Contextual Long-Short Term Memory Model for Text Normalization
Wookhee Min | Bradford Mott
Proceedings of the Workshop on Noisy User-generated Text


Exploring Individual Differences in Student Writing with a Narrative Composition Support Environment
Julius Goth | Alok Baikadi | Eun Young Ha | Jonathan Rowe | Bradford Mott | James Lester
Proceedings of the NAACL HLT 2010 Workshop on Computational Linguistics and Writing: Writing Processes and Authoring Aids

Exploring the Effectiveness of Lexical Ontologies for Modeling Temporal Relations with Markov Logic
Eun Y. Ha | Alok Baikadi | Carlyle Licata | Bradford Mott | James Lester
Proceedings of the SIGDIAL 2010 Conference