We are building a broadcast news video archive where topics of interest can be retrieved and tracked easily. This paper introduces a structuring method applied to the accumulated news videos. First they are segmented into topic units and then threaded according to their mutual relations. A user interface for topic thread-based news video retrieval is also introduced. Since the topic thread stru...

Adjacency pair recognition, a necessary component of discussion thread reconstruction, is the task of recognizing reply-to relations between pairs of discussion turns. Previously, dialogue act classification and metadata-based features have been shown useful in adjacency pair recognition. However, for certain forums such as Wikipedia discussions, metadata is not available, and existing dialogue...

Two experiments examined the restriction of referential domains during unscripted conversation by analyzing the modification and on-line interpretation of referring expressions. Experiment 1 demonstrated that from the earliest moments of processing, addressees interpreted referring expressions with respect to referential domains constrained by the conversation. Analysis of eye movements during ...

Studies of actual conversational behaviours used to generate positive change in family therapy are relatively rare. In this study such conversational details were examined as they occurred in a single session of family therapy. With passages identified by family members as helpful, discursive methods of analysis (conversation analysis and critical discourse analysis) were used to examine an act...

Previous intelligent tutoring systems (ITS) and ITS authoring studies predominantly simulated and evaluated artificial intelligence (AI) techniques and cognitive architectures/notions in educational domains. Current research focuses on software design that is priori driven by educational theories; it concerns the conception of Augmented Conversation and Cognitive Apprenticeship Metamodel (ACCAM...

The paper describes a new conversation management approach which may apply to a class of mixed initiative information seeking applications. It employs an application-independent conversation model inspired by the conversation theory of Grosz and Sidner [1]. Based on the model, we design a multi-layer conversation manager which employs instance-based learning (IBL) to determine conversation plan...

This paper investigates the potential use of dialog-based ALICEbots in disseminating terrorism information to the general public. In particular, we study the acceptance and response satisfaction of ALICEbot responses in both the general conversation and terrorism domains. From our analysis of three different knowledge sets: general conversation, terrorism, and combined, we found that users were...

This paper reports some (video-recorded) instances of ‘visual culture’ in action, namely the use of a new software tool designed for the visualization of scenes from Shakespeare’s Macbeth in a classroom context. By considering whether or how far conversation analysis (CA) can be extended from natural conversation to cases of collaborative work in front of a computer, the paper addresses the met...

Distance education via asynchronous learning networks (ALNs) is an increasingly common method of educational delivery. To add to a practical and academic understanding of asynchronous, computer-mediated communication this article reports a conversation analysis study to „map the ground‟ of ALNs by identifying and describing conversation practices of ALN students in terms of conversation analyti...