Publication Type
Conference Proceeding Article
Version
publishedVersion
Publication Date
7-2022
Abstract
Slides are important form of teaching materials used in various courses at academic institutions. Due to their compactness, slides on their own may not stand as complete reference materials. To aid students’ understanding, it would be useful to supplement slides with other materials such as online videos. Given a deck of slides and a related video, we seek to align each slide in the deck to a relevant video snippet, if any. While this problem could be formulated as aligning two time series (each involving a sequence of text contents), we anticipate challenges in generating matches arising from differences in content coverage and sequence of content between slide deck-video pairs. To mitigate these challenges, we propose a two-stage algorithm that builds on time series alignment to filter out irrelevant content and to align out-of-sequence slide deck and video pairs. We experiment with real-world datasets from openly available lectures, which have been manually annotated with start and end times of each slide in the videos to facilitate the evaluation of matches.
Keywords
Content mismatch, Dynamic time warping, Sequence mismatch, Slide to video alignment
Discipline
Artificial Intelligence and Robotics | Databases and Information Systems | Educational Assessment, Evaluation, and Research
Research Areas
Data Science and Engineering
Publication
23rd International Conference on Artificial Intelligence in Education, AIED 2022: Durham, July 27-31: Proceedings
Volume
13355
First Page
533
Last Page
539
ISBN
9783031116438
Identifier
10.1007/978-3-031-11644-5_45
Publisher
Springer
City or Country
Cham
Citation
LIU, Ziyuan and LAUW, Hady W..
Towards aligning slides and video snippets: Mitigating sequence and content mismatches. (2022). 23rd International Conference on Artificial Intelligence in Education, AIED 2022: Durham, July 27-31: Proceedings. 13355, 533-539.
Available at: https://ink.library.smu.edu.sg/sis_research/7600
Copyright Owner and License
Authors
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1007/978-3-031-11644-5_45
Included in
Artificial Intelligence and Robotics Commons, Databases and Information Systems Commons, Educational Assessment, Evaluation, and Research Commons