Browsing by Author "Chen, Ping-I"

Now showing 1 - 1 of 1

Performance-based content retrieval for learning object repositories on grid environments
(2006)
Shih, Wen-Chung
;
Yang, Chao-Tung
;
Chen, Ping-I
;
Tseng, Shian-Shyong
;
資訊工程學系
The Sharable Content Object Reference Model (SCORM) has become a popular standard for sharing and reusing teaching materials in the field of e-learning. However, efficient retrieval of SCORM-compliant learning objects stored on grid environments is a challenging problem. In this paper, a performance-based approach is proposed to retrieve teaching materials in grid environments. The proposed architecture uses the real-time information gathered by a resource-monitoring tool to estimate the dynamically changing performance of each node, for CPU loading and network bandwidth. In addition, a grid testbed is built to implement the model. Experimental results show that the proposed approach can choose the most appropriate site to reduce the retrieval time.