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Discriminative pattern mining is used to discover a set of significant patterns that occur with disproportionate frequencies in different class-labeled data sets. Although there are many algorithms that have been proposed, the redundancy issue that the discriminative power of many patterns mainly derives from their sub-patterns has not been resolved yet. In this paper, we consider a novel notion dubbed...
At present, LUCC research becomes a hot problem. The research in our country focuses on the hot spots, fragile ecological environment and typical areas. In this paper, two remote sensing image respectively in 2000 and 2005 are used to analyze and assess the LUCC of the industrial zone by using the 3S technique means. The result is taken to support the data for the EIA and EM.
Using multiple channels and smart frequency reuse strategy could significantly improve the performance of wireless sensor networks. In this paper we propose an method to determine channel usage based on discrete particle swarming optimization (PSO) algorithm. In stead of searching for a collision-free channel assignment which is not achievable in many scenarios, the goal of our algorithm is to find...
This paper presents a novel and improved three-dimensional plane wave time domain (PWTD) algorithm. PWTD schemes constitute extensions of frequency domain fast multipole methods to the time domain, and permit the fast evaluation of transient wave fields generated by bandlimited sources. Previously, we demonstrated the equations pertinent to the analysis of electromagnetic scattering problems. Implementation...
An approach to calculate the retarded-time scalar and vector potential integral over the RWG basis functions is presented. The method is necessary for cases where the temporal function exhibits rapid variations, and for singular observation points. The analytical scheme is especially attractive because the integration is rendered non-singular, and becomes one-dimensional which is easy to adaptively...
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