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Feature representation plays an important role in text classification. Feature mapping based on labels information is an algorithm suitable for Binary Relevance. Compared with the conventional text representation, it makes the dimension of the text under control by means of word embedding. More importantly, it takes full advantage of the general characteristics of the label on text representation...
Face recognition has been widely used in many application areas such as photo album management and information security. Rapid growth of handheld devices and social networks bring new challenges to face recognition algorithm design and system engineering. To be effective on a handheld device, the face recognition model must be simple and lightweight, and also needs to handle the large variations in...
Traditional 2D line-drawing methods are mostly manual and hence quite laborious. A new 3D-model-assisted approach makes archaeological reports more accurate, efficient, and informative. The Web extra is a video that shows a new computer-assisted archaeological line drawing approach and its application in the investigation of the Longmen Grottoes, a cultural heritage site in China.
In this paper, based on manifold harmonics, we propose a novel framework for 3D shape similarity comparison and partial matching. First, we propose a novel symmetric mean-value representation to robustly construct high-quality manifold harmonic bases on nonuniform-sampling meshes. Then, based on the manifold harmonic bases constructed, a novel shape descriptor is presented to capture both of global...
Archaeological line drawing is an essential component of an archaeological report. In this paper, we propose a multi-scale approach to generating 3D line drawing on a triangular mesh model for archaeological illustration. The discrete multi-scale representation of a given model is first constructed based on random walks. Then, we propose a probabilistic method for local scale selection based on the...
Cognitive radios should have the capability to detect idle spectrum and share it without harmful interference with other users. This paper presents a strategy for extracting second-order cyclostationary characteristics of licensed system and rental system signals based on spectrum pooling system. According to cyclostationary characteristics of licensed users signals received at the nodes of CRs, predicting...
We propose a multi-scale approach to detecting creases on noisy meshes. Given a noisy mesh as input, first we generate its discrete multi-scale representation based on an improved anisotropic diffusion method. Then, a method is presented for detecting salient vertices on a noisy mesh by exploiting curvatures estimated at different scales. Finally, creases are generated by connecting curvature extrema...
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