Abstract. Many visual similarity-based phishing page detectors have been developed to detect phishing webpages, however, scammers now create polymorphic phishing pages to breach the defense of those detectors. We call this kind of countermeasure phishing page polymorphism. Polymorphic pages are visually similar to genuine pages they try to mimic, but they use different representation techniques. It increases the level of difficulty to detect phishing pages. In this paper, we propose an effective detection mechanism to detect polymorphic phishing pages. In contrast to existing approaches, we analyze the layout of webpages rather than the HTML codes, colors, or content. Specifically, we compute the similarity degree of a suspect page and an authentic page through image processing techniques. Then, the degrees of similarity are ranked by a classifier trained to detect phishing pages. To verify the efficacy of our phishing detection mechanism, we collected 6, 750 phishing pages and 312 mimicked targets for the performance evaluation. The results show that our method achieves an excellent detection rate of 99.6%.

Rectilinear Steiner trees are used to route signal nets by global and detail routers in VLSI design for a long time. However, in current IC industry, there are significantly increasing obstacles to be considered, such as large-scale power networks, pre-routed nets, IP blocks, and antenna jumpers. Accordingly, the obstacle-avoiding rectilinear Steiner minimal tree (OARSMT) problem has become more important. In this article, we propose a new routing graph, obstacle-avoiding routing graph (OARG), for the OARSMT problem. Due to the important properties of OARG, we construct a 3-step algorithm and a local refinement scheme, which both can take advantage of these properties, to find a suboptimal solution efficiently. Furthermore, each step of our 3-step algorithm as well as the local refinement scheme has theoretical or practical benefits. Therefore, each of them can be applicable to other existing works for general or specific considerations such as efficiency or effectiveness. Extensive experimental results show that our method outperforms all existing works in terms of wirelength and achieves the best speed performance.

RFID and GPS are the two technologies that receive significant attention in the field of indoor and outdoor location systems, respectively. In this research, the need of integrating multiple heterogeneous location systems is identified. We propose a hybrid system that combines both RFID and GPS technologies to achieve the goal of true end-to-end logistics management, by end-to-end we mean the journey of goods delivery may traverse across both indoor and outdoor regions. With our system, not only a manager can dispatch tasks for the deliverymen, but also the real-time location of a deliveryman can be tracked both indoors and outdoors. More importantly, the deliveryman with a mobile terminal can experience seamless positioning handover between outdoor and indoor environments. The usefulness of this logistics management application is verified through an experiment conducted in the campus environment. To the best of our knowledge, this is the first work that implements RFID and GPS positioning handover in the application of end-to-end logistics management.

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