The Relationship between Semantic-similarity-based Cognitive Diversity and Discussion Effectiveness in an Intelligent Discussion System
Hongli Gao, Ran Ye1, Xiaohan Jiang
Cognitive diversity has been manipulated as the wide range of
semantic categories (Nijstad, Stroebe, & Lodewijkx, 2002), low
related categories (Baruah & Paulus, 2016) and so on. However,
these kinds of cognitive diversity were determined before group
discussion and would not change dynamically during the
discussion, which could be called static cognitive diversity.
Compared to this, adaptive cognitive diversity was defined as the
adaptive difference with the previous semantic domain in group
discussion. For manipulation, stimuli which were different from
the previous dynamic semantic domain were given after
automatically identifying the previous semantic domain in the
discussion (Gao, Yang, Xu, & Hu, 2019). Results showed that
compared with the homogeneous condition, discussion breadth
of the participants increased under the diverse condition,
participants subjectively considered that the opinions provided
by virtual agents were more helpful and the understanding on the
discussion questions was more comprehensive under the diverse
condition.