TY - GEN
T1 - Classifying abnormal activities in exam using multi-class Markov chain LDA based on MODEC features
AU - Hendryli, Janson
AU - Fanany, Mohamad Ivan
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/9/19
Y1 - 2016/9/19
N2 - In this paper, we apply MCMCLDA (Multi-class Markov Chain Latent Dirichlet Allocation) model to classify abnormal activity of students in an examination. Abnormal activity in exams is defined as a cheating activity. We compare the usage of Harris3D interest point detector and a human joints detector, MODEC (Multimodal Decomposable Models), as the feature detector. Experiment results show that using MODEC to detect arm joints and head location as interest point gives better performance in accuracy and computational time than Harris3D when classifying cheating activity. MODEC suffers low accuracy due to its inability to differentiate elbow and wrist when the object wears clothes with indistinguishable colors. Meanwhile, Harris3D detects too many irrelevant interest point to recognize cheating activity reliably.
AB - In this paper, we apply MCMCLDA (Multi-class Markov Chain Latent Dirichlet Allocation) model to classify abnormal activity of students in an examination. Abnormal activity in exams is defined as a cheating activity. We compare the usage of Harris3D interest point detector and a human joints detector, MODEC (Multimodal Decomposable Models), as the feature detector. Experiment results show that using MODEC to detect arm joints and head location as interest point gives better performance in accuracy and computational time than Harris3D when classifying cheating activity. MODEC suffers low accuracy due to its inability to differentiate elbow and wrist when the object wears clothes with indistinguishable colors. Meanwhile, Harris3D detects too many irrelevant interest point to recognize cheating activity reliably.
UR - http://www.scopus.com/inward/record.url?scp=84992121888&partnerID=8YFLogxK
U2 - 10.1109/ICoICT.2016.7571881
DO - 10.1109/ICoICT.2016.7571881
M3 - Conference contribution
AN - SCOPUS:84992121888
T3 - 2016 4th International Conference on Information and Communication Technology, ICoICT 2016
BT - 2016 4th International Conference on Information and Communication Technology, ICoICT 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Information and Communication Technology, ICoICT 2016
Y2 - 25 May 2016 through 27 May 2016
ER -