Semi-supervised detection of student engagement

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

Abstract

User engagement (UE) is a relevant affective state in learning contexts. UE detection based on machine vision has recently gained attention; however, there is a shortage of datasets for automated detection of UE. In fact, the ambiguity of the task and domain-specific features of the data make annotation difficult in this domain, especially for large scale data. Thus, we aim to investigate UE detection in a large volume of data based on a small fraction of annotated data. To do so, we apply a safe semi-supervised support vector machine (S4VM) noting that its pure supervised version (SVM) has been successfully applied in UE detection. To compare the results, both SVM and S4VM are applied to our collected data. According to the results, S4VM consistently achieves better performance than SVM. The level of performance is also acceptable according to the literature; however, acquiring high accuracy in UE detection requires more investigation.
Original languageEnglish
Title of host publicationPACIS 2017
Subtitle of host publicationProceedings of 21st Pacfici-Asia Conference on Information Systems
Place of PublicationAtlanta, GA
PublisherAIS Electronic Library (AISeL)
Pages2-8
Number of pages7
Publication statusPublished - 16 Jul 2017
Event21st Pacfici-Asia Conference on Information Systems, PACIS 2017 - Langkawi Island, Malaysia
Duration: 16 Jul 201720 Jul 2017

Conference

Conference21st Pacfici-Asia Conference on Information Systems, PACIS 2017
CountryMalaysia
Period16/07/1720/07/17

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Keywords

  • User Engagement
  • Affective Computing
  • Semi - Supervised Learning
  • Facial Action Units

Cite this

Mohamad Nezami, O., Richards, D., & Hamey, L. (2017). Semi-supervised detection of student engagement. In PACIS 2017: Proceedings of 21st Pacfici-Asia Conference on Information Systems (pp. 2-8). [157] Atlanta, GA: AIS Electronic Library (AISeL).