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In this paper, a study on frequency interpolation algorithms of method of moments (MoM) impedance matrices is discussed in detail, which is successfully applied into the full-wave analysis of a microstrip patch antenna in a relatively wide band. By using Lagrange interpolation scheme in an adaptive system, two interpolating rules are realized and their accuracies are defined by Frobenius norms of...
Among those classical clustering algorithms, spectral clustering performs much better than K-means in most cases. However, for the sake of cubic time complexity, spectral clustering is hardly used for clustering large-scale data sets. Therefore, sampling-based methods such as Nystr¡§om method and Column sampling are respectively conducted as potential approaches to tackle this challenge. As we know,...
Panoramic street view is now becoming a popular service in digital map due to its expedient of virtual walking through. Recently, some geo-tagged photos have been added into street view as additional illustration images for the same scenes. However, these images come directly from certain photo sharing websites where users manually tag the locations of their uploaded images; the quality of annotated...
Two-dimensional gel electrophoresis (2DGE) images are extremely useful support for proteins analysis in the field of proteomics. The registration of 2DGE images is an important element for protein identification in biological research while it is a complex and difficult problem. This paper proposes a new non-linear registration approach for 2DGE images, which is based on the exploitation of both spot...
Many types of shape descriptors have been proposed for 2D shape analysis, but most of them consist of component features that are not adapted to specific problems. This has two drawbacks. First, computation is wasted on the irrelevant components; second, the accuracy is impaired. This paper proposes an effective method that generates compact descriptors adapted to specific problems in hand, where...
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