TY - GEN
T1 - Identifying student online discussions with unanswered questions
AU - Kim, Jihie
AU - Li, Jia
AU - Kim, Taehwan
PY - 2009
Y1 - 2009
N2 - This paper presents an approach for identifying student discussions with unresolved issues or unanswered questions. In order to handle highly incoherent data, we perform several data processing steps. We then apply a two-phase classification algorithm. First, we classify "speech acts" of individual 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 unresolved issues. We performed a preliminary analysis of the classifiers and the system shows an average F score of 0.76 in discussion thread classification.
AB - This paper presents an approach for identifying student discussions with unresolved issues or unanswered questions. In order to handle highly incoherent data, we perform several data processing steps. We then apply a two-phase classification algorithm. First, we classify "speech acts" of individual 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 unresolved issues. We performed a preliminary analysis of the classifiers and the system shows an average F score of 0.76 in discussion thread classification.
KW - Algorithms
KW - H.3.1 content analysis and indexing
KW - H.4 information systems applications I.2.7: natural language processing
KW - Human factors
KW - Languages
UR - http://www.scopus.com/inward/record.url?scp=70449650407&partnerID=8YFLogxK
U2 - 10.1145/1597735.1597779
DO - 10.1145/1597735.1597779
M3 - Conference contribution
AN - SCOPUS:70449650407
SN - 9781605586588
T3 - K-CAP'09 - Proceedings of the 5th International Conference on Knowledge Capture
SP - 195
EP - 196
BT - K-CAP'09 - Proceedings of the 5th International Conference on Knowledge Capture
T2 - 5th International Conference on Knowledge Capture, K-CAP'09
Y2 - 1 September 2009 through 4 September 2009
ER -