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In the field of spam detection, concentration methods have been proposed for feature construction in recent years, which convert emails into fixed length feature vectors. This paper presents a novel method aiming to break through the limit of feature vector's length. Specifically, the method uses a fixed-length sliding window to divide each email into several sections. The number of sections depends...
The increasing scale and complexity of software systems have led to a large amount of work being performed in the area of software architecture of object-oriented systems. For the purpose of reasonable description of software structure, we make use of complex network theory to characterize and describe their macroscopic properties. We propose a directed software coupling network, and then empirical...
The integral image is typically used for fast integrating a function over a rectangular region in an image. We propose a method that extends the integral image to do fast integration over the interior of any polygon that is not necessarily rectilinear. The integration time of the method is fast, independent of the image resolution, and only linear to the polygon's number of vertices. We apply the...
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