Yi-Chun Chang

Yi-Chun Chang


Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 March 2022 in Applied Sciences
Verified
Journal Article
Open access
PDF file
YCYi-Chun Chang
Yi-Chun Chang
JLJian-wei Li
Jian-wei Li
DHDe-Yao Huang
De-Yao Huang
Among the numerous learning management platforms, Moodle is free, open-source software supporting expanding and modularized system functions and services to facilitate online courses or online resources and interactive activities. This study enhanced a personalized learning service for the Moodle e-learning management system, which synchronizes the user’s identity according to the user information database of the third-party user management platform system. According to the user’s demand to provide a personalized e-course, including personalized learning process, e-materials, and learning path to improve learning efficiency. This study adopted the pre-test and post-test achievement to compare the benefit of the personalized e-learning platform. Research samples were students in the “programming” course at the Technology University in central Taiwan. The experiment results indicate: (i) The average post-test result after using the proposed platform was higher than the average pre-test result (before using the proposed platform). (ii) The learning effect gap in the post-test between students was less than in the pre-test result. Hence, the proposed personalized e-learning platform was beneficial.

25 October 2018 in Applied Sciences
Verified
Journal Article
Open access
PDF file
YCYi-Chun Chang
Yi-Chun Chang
JLJian-wei Li
Jian-wei Li
JLJing-Hong Lv
Jing-Hong Lv
By virtue of the rapid development of the Information and Communication Technology (ICT), people have owned various devices connected to the Internet to enjoy various emerging application services, such as multimedia related services. IP Multimedia Subsystem (IMS) is the integration platform for multimedia application services and provides a rich feature set of converged services in the Next Generation Network (NGN). IMS services are accessed by a user anytime and anywhere through his/her personal self IMS device, e.g., mobile device, equipped with a Universal Subscriber Identity Module (USIM) card. People have owned various devices connected to the Internet at homes or offices. However, some devices can not access IMS services without USIM cards embedded, which is called non-IMS devices. People wish that more devices without USIM cards embedded should be connected to the Internet on which IMS services are accessed in addition to the mobile devices equipped with USIM cards. Accordingly, we propose an Open Service Gateway Initiative (OSGi)-based IMS service gateway, in which OSGi technology is the dynamic module system for JAVA. The proposed gateway is authorized by a personal self IMS device such that IMS services are accessed by non-IMS devices, in this paper. Moreover, these non-IMS devices rely on different networks to access technologies and network protocols and the IMS service gateway proposed here adopts the OSGi framework for no problem of integration.

1 August 2019
Verified
Conference Paper
Closed access
JLJian-wei Li
Jian-wei Li
YCYi-Chun Chang
Yi-Chun Chang
DHDe-Yao Huang
De-Yao Huang
MXMin-Xiong Xu
Min-Xiong Xu