A modeling approach is introduced in this paper to capture the real characteristics of the WWW traffic, using a combination of Box-Jenkins models with seasonality removal. Fourier analysis and standardization are used...
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Hierarchical WWW cache formation which provides both higher hit rates and saves overall bandwidth consumption through fetching WWW objects and periodically redistributing them among member caches is proposed as an app...
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An integrated multichannel wavelength monitoring circuit using specially designed phased-array waveguide grating and detector arrays, which monitors all wavelength-division multiplexing channels in real-time (sixteen ...
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ISBN:
(纸本)155752582X
An integrated multichannel wavelength monitoring circuit using specially designed phased-array waveguide grating and detector arrays, which monitors all wavelength-division multiplexing channels in real-time (sixteen channels at 200-GHz spacing), has been demonstrated with /spl sim/0.02 nm accuracy.
We propose a parallel SOM algorithm to speedup the fundamental SOM calculation using parallel computer environments. In the parallel SOM algorithm synaptic weights are updated in parallel corresponding to multiple sti...
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We propose a parallel SOM algorithm to speedup the fundamental SOM calculation using parallel computer environments. In the parallel SOM algorithm synaptic weights are updated in parallel corresponding to multiple stimuli (inputs). Parallelism in the proposed algorithm is based on the analogy of the biological neural networks in which neurons respond to the stimuli in parallel. Performance is evaluated by implementing the newly developed performance simulator in a personal computer-cluster under the message passing interface library (MPI) environment. A speedup ratio of about 5.0 is achieved with 8 processors (personal computers) when the width of the neighborhood function is less than 5% of the total number of neurons in the SOM network.
Progress in cognitive robotics can comeeither fromefforts to provide physical robots with more autonomy, or from efforts to make AI techniques more generally applicable to the needs of robotic agents. Weare conducting...
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This paper presents an accurate estimation formula for the minimum filter length of optimum (the minimax criterion-based) FIR low-pass digital filters. The authors have proposed an accurate estimation formula for the ...
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This paper presents an accurate estimation formula for the minimum filter length of optimum (the minimax criterion-based) FIR low-pass digital filters. The authors have proposed an accurate estimation formula for the particular case that the passband and stopband ripples are identical. Now we expand the formula for the general case. The accuracy of the proposed formula is evaluated in comparison with that of the conventional formulae. We also describe how to apply the proposed formula for the design of other types of filters.
This paper presents an accurate estimation formula for the minimum filter length of optimum(the minimax criterion based) FIR low-pass digital *** authors have proposed an accurate estimation formula for the particular...
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This paper presents an accurate estimation formula for the minimum filter length of optimum(the minimax criterion based) FIR low-pass digital *** authors have proposed an accurate estimation formula for the particular case that the passband and stopband ripples are *** we expand the formula for the general *** accuracy of the proposed formula is evaluated in comparison with that of the conventional *** is also described how to apply the proposed formula for the design of other types of filters.
Recently, there is considerable interest in automated extraction of 3-D information through image matching. This paper presents an image matching system using Three Line Scanner (TLS) images, The disparity constraint ...
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Recently, there is considerable interest in automated extraction of 3-D information through image matching. This paper presents an image matching system using Three Line Scanner (TLS) images, The disparity constraint of the TLS images has been investigated and exploited to refine the initial disparity estimation, which is produced by a relaxation matching. The effectiveness of our method with TLS is demonstrated by comparing our results with those of matching only two line scanner images, It is shown that more accurate and reliable results are achieved with TLS.
Recent applications of fuzzy control have created an urgent demand for fuzzy modeling techniques. Several methods for identification of fuzzy models from numerical input-output samples have been proposed. Among them, ...
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Recent applications of fuzzy control have created an urgent demand for fuzzy modeling techniques. Several methods for identification of fuzzy models from numerical input-output samples have been proposed. Among them, Sugeno and Yasukawa's method [6], which employs fuzzy c-means clustering, holds significant promises. This paper improves the method of Sugeno and Yasukawa. Identified fuzzy models are tuned at various stages by means of genetic algorithms, i.e., the numbers of input variables and rules are reduced and membership function parameters are adjusted. The technique, when applied to a nonlinear system, demonstrates its efficiency in a comparison with the original method of Sugeno and Yasukama.
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