2013 Volume 15 Issue 4 Pages 353-362
Techniques of communication support has a big challenge in visualizing temporal rate of communication between collaborative workers, while situation awareness in wrong direction of discussion and consecutive ignorance of opinions from an individual is often hard from the view of their supervisors. This study argues the potential to evaluate situation of communication by multi-modal dialogue analysis from turn-taking and EEG based estimation of mental workload. In this paper, we propose an index of follows, i.e., collaborative activity by response to an opinion with understanding of their conversation or advice to share knowledge of problem-solving. Causality between temporal distribution of follows in line with work progress of cooperative learners are evaluated in a case study of a qualifying test. From the evaluation results, both frequency of turn-taking and the amount of follows showed significant difference between two situations: stagnation such as less communication with silence at the point the participants tried to read problems and active conversation with more communication at the point they can answer solutions together.
