A number of software environments have been developed as media to support collaborative knowledge building, typically featuring a Web-based threaded discussion facility. We have recently developed such a system, known as WEBGUIDE. The distinctive feature of this system is support for structuring collaboration and knowledge construction with personal, group and comparison perspectives. While pil...

BBS(Bulletin Board Systems) is one of the most common places for threaded discussion. It becomes more and more popular among web users, especially in China. Everyday a huge amount of new discussions are generated on BBS. It is too difficult to find hot topics. To solve this issue, we propose a novel approach to detect hot topics on BBS for any period of time. Our solution consists of three step...

Gordon Pask’s conversation theory stands as a major contribution to cybernetics, education and epistemology. Ranulph Glanville was Pask’s student. He made himself familiar with conversation theory and promoted it in his lecture and writings throughout his career. In doing so, he made significant contributions. I summarise some of these here. To set the scene, I briefly outline some of the main ...

This paper discusses issues, possibilities and existing approaches for fitting an exception handling mechanism (EHM) in CSP-based process-oriented software architectures. After giving a survey on properties desired for a concurrent EHM, specific problems and a few principal ideas for including exception handling facilities in CSP-designs are discussed. As one of the CSP-based frameworks for con...

An experimental study of asynchronously communicating dyads tested the claim that conceptual representations could more effectively support collaborative knowledge construction in online learning than threaded discussions. Results showed that users of conceptual representations created more hypotheses earlier in the experimental sessions and elaborated on hypotheses more than users of threaded ...

BACKGROUND Those attempting to implement changes in health care settings often find that intervention efforts do not progress as expected. Unexpected outcomes are often attributed to variation and/or error in implementation processes. We argue that some unanticipated variation in intervention outcomes arises because unexpected conversations emerge during intervention attempts. The purpose of th...

We consider the problem of finding relevant consistent concepts in a conversational AI system, particularly, for realizing socialbot. Commonsense knowledge about various topics can be represented as an answer set program. However, to advance conversation, we need solve concepts, i.e., find "neighborhood" current topic being discussed that used conversation. Traditional ASP solvers will generate...