Paper: Towards Identifying Unresolved Discussions in Student Online Forums

ACL ID W10-1012
Title Towards Identifying Unresolved Discussions in Student Online Forums
Venue Innovative Use of NLP for Building Educational Applications
Session
Year 2010
Authors

Automatic tools for analyzing student online discussions are highly desirable for providing better assistance and promoting discussion participation. This paper presents an approach for identifying student discussions with unre- solved issues or unanswered questions. In or- der to handle highly incoherent data, we perform several data processing steps. We then apply a two-phase classification algo- rithm. First, we classify “speech acts” of indi- vidual messages to identify the roles that the messages play, such as question, issue raising, and answers. We then use the resulting speech acts as features for classifying discussion threads with unanswered questions or unre- solved issues. We performed a preliminary analysis of the classifiers and the system shows an average F s...