Lun-Ping Hung

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Nowadays, Electronic Commerce (EC) provides a new gateway for customers shopping online. One of the most significant advantages offered by online shops is convenience. Online shopping is no longer a time-consuming task and, in fact, is an energy-saving activity. Therefore, shortening customers’ product searching time is the key to an online shop’s success.(More)
This paper proposes an anticipation model of potential customers’ purchasing behavior. This model is inferred from past purchasing behavior of loyal customers and the web server log files of loyal and potential customers by means of clustering analysis and association rules analysis. Clustering analysis collects key characteristics of loyal customers’(More)
Endovascular aneurysm repair (EVAR) is an advanced minimally invasive surgical technology that is helpful for reducing patients’ recovery time, postoperative morbidity and mortality. This study proposes an ensemble model to predict postoperative morbidity after EVAR. The ensemble model was developed using a training set of consecutive patients who underwent(More)
Web-based distance learning provides a flexible environment for students, but there is a lack of interaction between students and the instructor. To overcome this drawback, we propose a systematic assessment mechanism to enhance interaction between both sides and to maximize student learning performance. This mechanism is presented by means of a new(More)
This paper proposes a prioritized call admission control (CAC) model to support soft handoff calls with quality of service (QoS) assurances for both the uplink and downlink connections in a CDMA system. CAC is formulated as a combinatorial optimization problem in which the problem objective is to minimize the handoff forced termination rate. The model,(More)
VRML (Virtual Reality Modeling Language) is used to model the 3D object of the Web page, and become as a standard for 3D information of World Wide Web. We propose a content-based VRML 3D object retrieval system. The system can display 3D objects queries to Web browsers interactively. User may give a VRML object, and find VRML scenes that use the similar(More)
Distance learning brings convenience, stability and flexibility. People can learn anytime and anywhere. Designing a distance course and assessing the learner becomes the key issue. In order to solve the disadvantage, a systematic assessment mechanism is proposed to enhance interaction between students and teachers. This paper combines the concept and(More)