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Abstract
Open Educational Resources deliver a strategic opportunity to improve the quality of education. Currently, OER users, students, instructors, and scholars can find OERs from general search engines through metadata enrichment and logic extrapolation. Yet, most users of Web search engines today face difficulties when searching for decent and appropriate learning materials. One of the explanations may be that users are unable to get a clear overview of the list of results produced by current learning object repositories (LORs) for a given single keyword search. The purpose of this study is to propose an enhanced learning object (LO) search engine solution together with a data visualization feature in order to navigate a hitlist of LOs using a hierarchical knowledge graph based on a single keyword search in LORs. In order to conduct experiments and validate our approach, in this study we selected MERLOT II, a well-known learning resource repository. We implemented a Web-based solution where users can execute a single keyword search, then visualize results on a hierarchical knowledge graph. In order to accomplish our objectives, the back-end of the system was involved in the functions of data extraction, data transformation, data clustering and data visualization. The outcome of the search and data visualization results indicate that the proposed approach can help users to get a clear overview of the LOs based on a single keyword search.
Original language | English |
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Title of host publication | Proceedings - 2018 IEEE 42nd Annual Computer Software and Applications Conference, COMPSAC 2018 |
Editors | Chung-Horng Lung, Thomas Conte, Ling Liu, Toyokazu Akiyama, Kamrul Hasan, Edmundo Tovar, Hiroki Takakura, William Claycomb, Stelvio Cimato, Ji-Jiang Yang, Zhiyong Zhang, Sheikh Iqbal Ahamed, Sorel Reisman, Claudio Demartini, Motonori Nakamura |
Publisher | IEEE Computer Society |
Pages | 1026-1031 |
Number of pages | 6 |
ISBN (Electronic) | 9781538626665 |
DOIs | |
State | Published - 8 Jun 2018 |
Event | 42nd IEEE Computer Software and Applications Conference, COMPSAC 2018 - Tokyo, Japan Duration: 23 Jul 2018 → 27 Jul 2018 |
Publication series
Name | Proceedings - International Computer Software and Applications Conference |
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Volume | 1 |
ISSN (Print) | 0730-3157 |
Conference
Conference | 42nd IEEE Computer Software and Applications Conference, COMPSAC 2018 |
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Country/Territory | Japan |
City | Tokyo |
Period | 23/07/18 → 27/07/18 |
Keywords
- Clustering
- Data extraction
- Data transformation
- Data visualization
- MERLOT II
- Open Educational Resources
- Search engine
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An Automatic Recommendation System for Student Class Study and Major/Career Planning(2/3)
1/08/17 → 31/07/18
Project: Research