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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Imran, Ali Shariq Rahadianti, Laksmita Cheikh, Faouzi Alaya Yayilgan, Sule Yildirim |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Computer Science and Media Technology, Gjøvik University College, Norway (Imran, Ali Shariq; Rahadianti, Laksmita; Cheikh, Faouzi Alaya; Yayilgan, Sule Yildirim) |
| Abstract | This paper presents an objective keyword selection method called visualness with Lesk disambiguation (VLD) for describing educational videos with semantic tags. It extends the work on automatically extracting and associating meaningful keywords carried out in ‘semantic tags for lecture videos’ for efficient indexing and retrieval. VLD uses lecture videos and surrogates documents such as lecture transcripts to extract potential candidate keywords. The candidate keywords undergo a series of selection process extracting fewer but more meaningful keywords based on word sense disambiguation (WSD) and visual similarity. The objective metric then selects top ranking keywords by employing a rank cut-off method. The proposed metric is validated by comparing the automatically selected keywords to those obtained manually, suggesting that the words selected by the proposed objective metric correlate highly with those selected by viewers. The results are further compared to traditional term frequency inverse document frequency (TF-IDF) and state-of-the-art latent Dirichlet allocation (LDA) method, with an improved accuracy of 68.18% on 30 lecture videos. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 277523 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479945726 |
| DOI | 10.1109/EUVIP.2014.7018378 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-12-10 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Measurement Context Visualization Objective metrics Video annotation Semantics Word sense disambiguation Streaming media Semantic keyword selection Multimedia communication Physics Visualness |
| Content Type | Text |
| Resource Type | Article |
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