  Consensus formation and difference of opinion have long been the subject of
research. However, relevant laws and systems within society are being updated
to reflect the changes in information networks. Online environment has come to
fulfill a major role as a real and concrete place of opposing opinions and
consensus formation. In the future, quantitative findings on consensus
formation, and findings on relevant trends, must be summarized, and
quantitative research related to trends likely to give rise to social and
economic risk is required. Thus, the potential for comparing research related
to consensus formation using actual data and an approach using a mathematical
model was first investigated.
