As an important aspect of the near neighbor query in the spatial database, the simple continues near neighbor chain query (SCNNC query) of the datasets has great significance in the practical application. To handle th...
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The simple continues near neighbor chain query (SCNNC-Qery) has important significance for the complex near neighborrelation query in datasets. The existing methods of the near neighbor query can not process effectiv...
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An analysis of the radar backscattering from the ocean surface covered by oil spill is presented using a mi- crowave scattering model and Monte-Carlo simulation. In the analysis, a one-dimensional rough sea sur- face ...
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An analysis of the radar backscattering from the ocean surface covered by oil spill is presented using a mi- crowave scattering model and Monte-Carlo simulation. In the analysis, a one-dimensional rough sea sur- face is numerically generated with an ocean waveheight spectrum for a given wind velocity. A two-layered medium is then generated by adding a thin oil layer on the simulatedrough sea surface. The electric fields backscattered from the sea surface with two-layered medium are computed with the method of moments （MoM）, and the backscattering coefficients are statistically obtained with N independent samples for each oil-spilled surface using the Monte-Carlo technique for various conditions of surface roughness, oil-layer thickness, frequency, polarization and incidence angle. The numerical simulation results are compared with theoretical models for clean sea surfaces and SAr images of an off-spilled sea surface caused by the Hebei （Hebei province, China） Spirit oil tanker in 2007. Further, conditions for better oil spill extraction are sought by the numerical simulation on the effects of wind speed and oil-layer thickness at different inci- dence angles on the backscattering coefficients.
False sharing is a notorious problem for multithreaded applications that can drastically degrade both performance and scalability. Existing approaches can precisely identify the sources of false sharing, but only repo...
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In this paper we present a method of sound classification which exploits a parts-basedrepresentation of spectro-temporal sounds, employing the nonnegative matrix factorization (NMF) [1]. We illustrate a new way of le...
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In this paper we present a method of sound classification which exploits a parts-basedrepresentation of spectro-temporal sounds, employing the nonnegative matrix factorization (NMF) [1]. We illustrate a new way of learning nonnegative features using a variant of NMF and show its useful behavior in the task of general sound classification with comparison to independent component analysis (ICA) which produces holistic features.
To provide consumers with the right information at the time of need, we developed a SmartSearch application that is able to extract a user's situational interests from usage data. It automatically constructs searc...
In this paper, we propose a novel method to predict the correctness of stereo correspondences, which we call confidence, and a confidence fusion method fordense disparity estimation. The input of our method consists ...
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Although periodic inspections are being carried out on social facilities such as bridges and highways in Korea, visual inspections by inspectors have problems of cost and inefficiency. In this study, an Ar glass-based...
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In the design of analog circuits, some pairs of devices are constrained to be placed symmetrically with respect to a common axis in order to cope with the device matching. In this paper, symmetry constraint is coped w...
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In Internet environment, the information resource could be modified, divided and integrated while transmitting. There are three characteristics of information system: 1) large masses of resource, 2) resources are fuse...
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