Wei-Hao Chang

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Just in a few decades, the rapidly developed wireless networks and the intelligent information systems popularity had so dramatically changed our daily lives. From the view of the ubiquitous computing, which context and ambient awareness [5]respected omnipresent computing allow users to receive the location corresponded and suitable information at any time(More)
Phishing which is a kind of theft that attempting to steal sensitive information, has become a major threat to people's daily life. Some researchers proposed some methods of anti-phishing based on the characteristics of fishing behaviors. This article will firstly introduce the field of phishing and some mature method for anti-phishing. Then, it will(More)
This article describes an improved competition model named NightMare Agent for Trading Agent Competition Ad Auction which simulate the real Sponsored Search Market. The experiment result shows that the proposed model had satisfactory performance, especially fitted with the high capacity situation. Furthermore, this article also evaluates the results with(More)
Compressed sensing MRI can accelerate MRI temperature monitoring of tissues undergoing the high-intensity focused ultrasound (HIFU) treatment. This paper investigates the relationship between the accuracy of the MRI temperature maps reconstructed using reference image-based compressed sensing and some parameters such as the HIFU hot spot size, the image(More)
This work presents a simple design for a mobile single-sided nuclear magnetic resonance (NMR) apparatus with a relatively homogeneous static magnetic field (B(0)) distribution. In the proposed design, the B(0) magnetic field of the apparatus is synthesized using only two permanent magnet blocks, i.e., a cube (main) magnet and a small shim magnet placed(More)
This study presents a simple design for a mobile, single-sided nuclear magnetic resonance (NMR) apparatus which uses the magnetic flux parallel to the magnetization direction of a single, disc-shaped permanent magnet polarized in radial direction. The stray magnetic field above the magnet is approximately parallel to the magnetization direction of the(More)
For the purpose of improving weapon effectiveness evaluation, this research uses system dynamic as the model. The simulation scenario was developed by combining the reconnaissance aircrafts and attack fighters in terms of joint operations, establishing subsystems of dependability, self-recovery, and reconnaissance. In addition, the swarm Unmanned Aerial(More)