How do we know if the students are outside (or not as close as) of the discussion topic?
We can easily see this through the discussion map on Fig 10.
In addition, we can take some note as the following:
x The messages indicated by a different color (red color), are not as close as of the discussion topic.
x Five messages are not as close as of the discussion topic
x Six messages are not as close as of the previous post
x The Semantic similarity value (sim_pa = 0.60) between the message post with student safa and discussion topic
x The Semantic similarity value (sim=0.55) between the message post with student (safa) and parent (omer)
x 31%, The rate of the messages are outside (or not as close as) of the discussion topic.
x 38%, The rate of the messages are not as close as of the previous post.
x One student Lurker (abier).