The problem of multi-set membership query plays a significant role in many network applications, including routers and firewalls. Answering multi-set membership query means telling whether an element belongs to the multi-set, and if yes, which particular set it belongs to. Most traditional solutions for multi-set membership query are based on Bloom filters. However, these solutions cannot achie...

A spatial time series dataset is a collection of time series, each referencing a location in a common spatial framework. Correlation analysis is often used to identify pairs of potentially interacting elements from the cross product of two spatial time series datasets. However, the computational cost of correlation analysis is very high when the dimension of the time series and the number of lo...

introduction: the accuracy of analyzing functional mri (fmri) data is usually decreases in the presence of noise and artifact sources. a common solution in for analyzing fmri data having high noise is to use suitable preprocessing methods with the aim of data denoising. some effects of preprocessing methods on the parametric methods such as general linear model (glm) have previously been evalua...

here, we propose an add-drop and a channel drop filter based on two-dimensional photonic crystal all circular ring resonators. these structures are made of a square lattice of silicon rods with the refractive index n1=3.464 surrounded by air (with refractive index n2=1). the broadest photonic band gap occurs at the filling ratio of r/a = 0.17. two linear defect w1 waveguides couple to the ring....

This paper presents a new second order multifunction filter using one active element, requiring only ‘twelve’ CMOS transistors, and four passive elements. The proposed circuit realizes voltage-mode low-pass, high-pass and band-pass functions with the advantages of minimum component count structure, high Q possibility, and high frequency potential. The proposed circuit is verified through PSPICE...

This article presents a realization of a recently basic building block for analog signal processing, namely fully differential operation transconductance amplifier (FD-OTA) using the commercially available ICs (LT1228). The proposed element has very simple internal instruction. The performances are examined through PSpice simulations. The description include example as biquadratic filter topolo...

In this paper we show the equivalence of three techniques used in image processing: local-mode finding, robust-estimation and mean-shift analysis. The computational common element in all these image operators is the spatial-tonal normalized convolution, an image operator that generalizes the bilateral filter.

Photopolymer materials are widely used in many holographic applications because of their advantages. This paper reviews the various holographic applications which either require the high index modulation including optical demultiplexer, color-display filter, and polarization-selective element, or need the stability and long life such as holographic memory and security card system.

As high performance Analog-to-Digital Converters (ADCs) continue to improve in their performance, the last stage interface from the final amplifier into the converter inputs becomes a critical element in the system design if the full converter dynamic range is desired. This application note describes the performance and design equations for a simple passive 2nd-order filter used successfully in...

Spectrum sensing is a key element for cognitive radio and is process of obtaining awareness about the radio spectrum in order to detect the presence of other users. In this paper we study the performance of different spectrum sensing techniques in terms of detection performance and required SNR, based on theoretical expressions. Keywordscognitive radio; spectrum sensing; energy detection;matced...