Type

Conference Proceedings

Authors

Noel E. O'Connor
Paul Kwan
Keisuke Kameyama
Jiang Zhou
Suzanne Little
Kevin McGuinness
Houssem Chatbri

Subjects

Computer Science

Topics
machine learning artificial intelligence automatic classification transcript features digital video quality management mooc video classification convolutional neural networks cnn

Automatic MOOC video classification using transcript features and convolutional neural networks (2017)

Abstract The amount of MOOC video materials has grown exponentially in recent years. Therefore, their storage and analysis need to be made as fully automated as possible in order to maintain their management quality. In this work, we present a method for automatic topic classification of MOOC videos using speech transcripts and convolutional neural networks (CNN). Our method works as follows: First, speech recognition is used to generate video transcripts. Then, the transcripts are converted into images using a statistical co-occurrence transformation that we designed. Finally, a CNN is used to produce video category labels for a transcript image input. For our data, we use the Khan Academy on a Stick dataset that contains 2,545 videos, where each video is labeled with one or two of 13 categories. Experiments show that our method is strongly competitive against other methods that are also based on transcript features and supervised learning.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Computing
Ireland -> Dublin City University -> Subject = Computer Science: Artificial intelligence
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Digital video
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: INSIGHT Centre for Data Analytics
Ireland -> Dublin City University -> Subject = Computer Science: Machine learning

Full list of authors on original publication

Noel E. O'Connor, Paul Kwan, Keisuke Kameyama, Jiang Zhou, Suzanne Little, Kevin McGuinness, Houssem Chatbri

Experts in our system

1
Noel E. O'Connor
Dublin City University
Total Publications: 474
 
2
Paul Kwan
Dublin City University
Total Publications: 3
 
3
Keisuke Kameyama
Dublin City University
Total Publications: 3
 
4
Jiang Zhou
Dublin City University
Total Publications: 18
 
5
Suzanne Little
Dublin City University
Total Publications: 36
 
6
Kevin McGuinness
Dublin City University
Total Publications: 93
 
7
Houssem Chatbri
Dublin City University
Total Publications: 7