The problem of analysing dynamically evolving textual data has recently arisen. An example of such data is the discussion appearing in Internet chat lines. In this paper a recently introduced source separation method, termed as complexity pursuit, is applied to the problem. The method is a generalisation of projection pursuit to time series and it is able to use both spatial and temporal depend...

Text message stream which is produced by Instant Messager and Internet Relay Chat poses interesting and challenging problems for information technologies. It is beneficial to extract the conversations in this kind of chatting message stream for information management and knowledge finding. However, the data in text message stream are usually very short and incomplete, and it requires efficiency...

We investigated how technologically mediating two different components of emotion-communicative expression and physiological state-to group members affects physiological linkage and self-reported feelings in a small group during video viewing. In different conditions the availability of second screen text chat (communicative expression) and visualization of group level physiological heart rates...

In this article, we present an analysis of closings in two counseling media: online, text-based exchanges (usually referred to as “chat” sessions) and telephone calls. Previous research has found that the participant who initiated a conversation preferably also initiates its termination with a possible preclosing. Advice acknowledgments, lying in the epistemic domain of the client, are devices ...

Synchronous text-based interaction, where participants are logged in to the same virtual space at the same time, can be a useful tool for enhancing traditional classes or as part of an entirely online course. Synchronous chat, as it is also called, may not have always received the same amount of attention from educators and researchers as the various forms of asynchronous online discussion tool...

An emotion-related channel was combined with electronic chat in a 3D virtual communication environment. Users can convey specific feelings by manipulating the facial expressions and gestures of their 3D characters (avatars). To examine the effects of the emotion-related channel, an experiment was carried out in two elementary schools with fiftyfive student participants. It was found that the ch...

We study whether a virtual agent that delivers humor through verbal behavior can affect an individual's proxemic behavior towards the agent. Participants interacted with a virtual agent through natural language and, in a separate task, performed an embodied interpersonal interaction task in a virtual environment. The study used minimum distance as the dependent measure. Humor generated by the v...