BACKGROUND & AIMS A recent systematic review of conversation training for communication partners of people with aphasia has shown that it is effective, and improves participation in conversation for people with chronic aphasia. Other research suggests that people with aphasia are better able to learn communication strategies in an environment which closely mirrors that of expected use, and that...

Head gaze, or the orientation of the head, is a very important attentional cue in face to face conversation. Some subtleties of the gaze can be lost in common teleconferencing systems, because a single perspective warps spatial characteristics. A recent random hole display is a potentially interesting display for group conversation, as it allows multiple stereo viewers in arbitrary locations, w...

Accounts of turn-taking in much of the CA literature have largely focused on talk which progresses with minimal gaps between turns at talk, longer gaps being found to be symptomatic of, for example, engagement in non-talk activities, or as indicators of some kind of trouble in the interaction. In this paper we present an account of turn-taking in conversations between Indigenous Australians whe...

What kinds of social organizations are used as resources when people communicate through talk in interaction? It is this question that conversation analysis attempts to answer. Conversation analysis (CA) studies the methods participants orient to when they organize social action through talk. It investigates rules and practices from an interactional perspective and studies them by examining rec...

We present a type theory for analyzing concurrent multiparty interactionsas found in service-oriented computing. Our theory introduces a novel andflexible type structure, able to uniformly describe both the internal and theinterface behavior of systems, referred respectively as choreographies and con-tracts in web-services terminology. The notion of conversation builds on th...

Models of conversation that rely on a robust notion of cooperation don't model dialogues where the agents' goals conflict; for instance, negotiation over restricted resources, courtroom cross examination and political debate. We aim to provide a framework in which both cooperative and non-cooperative conversation can be analyzed. We develop a logic that links the public commitments that agents ...

This paper describes a strategy for the conversation system to take part in human-to-human group conversation. One big characteristic of the group conversation system is that it can choose whether to observe or to take turn in the conversation. We implement the computational model combined with speech and gaze recognizers to keep the rules in turn taking, and define an interruption decision str...

From the start, I was never entirely sold on the idea of Chat Circles. I very much liked how the user's avatar was a circle on the visualization plane, and how it changed to match the users activity. However, immediately my concern turned to people abusing this fact. From the looks of the prototype pictures, players chat will be displayed inside their circle. What is to stop a user from spammin...