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In order to guarantee the safety of the prosthesis users, effective identification of stumble situation in the walking process is the key point. In this paper, the movement information of the human body is collected by using accelerator and gyroscope installed on the prosthesis. And the correlation coefficients of different signals are obtained via the correlation analysis. The correlation coefficients...
Bayesian networks are described based on correlation coefficients of the second, third, and the higher orders. The growth of orders for the correlation coefficients is proved to result in significant decrease in probabilities of the 2nd type errors. It testifies indirectly that the efficiency of the multivariate statistical analysis increases if the dimension of the correlation moments goes up. If...
In the paper, consistent measures of dependence of random values (the consistency means vanishing if and only if the random values are stochastically independent) are considered as a basic mathematical tool to solve stochastic system identification problems. Constructing consistent measures of dependence in the view of the Rényi axioms is considered. Particular attention is paid to the system identifiability...
In this paper, we consider a position estimation method based on propagation characteristics of multipath fading. In the method, prior to the actual position estimation, we need to measure propagation characteristics at known positions and build a database (DB). Using DB, we estimate a terminal position based on the similarity of the propagation characteristics of the DB positions and the terminal...
The multiplexing efficiency of 4×4 higher order MIMO with different MIMO topologies under different propagation scenarios in a mobile terminal is presented in this study. The mean effective gain, correlation coefficient and multiplexing efficiency of different MIMO topologies are compared and the impact from the angular spread of the incoming wave is also studied. The results are instructive for the...
MIMO technology enables high-data rates in wireless devices to allow from speech and video calls up to streaming media and web browsing all over a common platform. MIMO technology needs M antennas both in transmission and reception. Since the space in a wireless device is limited, including M antennas is a challenge. To face such challenge, two MIMO systems are proposed. A first one using a multiband...
Optimization of large-scale complex systems often involves high-fidelity computational simulation models that are very time-consuming. As a result, the number of objective function evaluations is often very limited and presents a major hurdle for optimization. Previous works on a new framework known as ordinal transformation (OT) provides a method that makes use of a low-fidelity approximate model...
This work explores the nature of warping path and the shape of the gross spectrum for speaker information in text-dependent speaker verification under degraded condition. The nature of warping path is observed to follow a similar trend for given speaker across different sessions, due to the style of spoken delivery. The deviation of the warping path from the diagonal is taken as feature for discrimination...
The quality and freshness of a fish sample is mainly affected due to the handling and storage conditions during the post harvesting period. The retention time and storage medium are the two main factors affecting the fish quality. This paper presents an image processing based method for automatic and efficient segmentation of gills from the fish sample image which can be used for fish freshness validation...
We studied the interrelation between the echocardiographic indices and the indices of collagenolysis system in 68 patients with progressive chronic heart failure with preserved ejection fraction and thick walls of the left ventricle. We found that while the tissue inhibitor TIMP-1 level is independent of the left ventricular dilation status, after being normalized to the individual matrix metalloproteinases...
The recent advancement in remote sensing has made it possible to capture hyper spectral images with more than hundred bands which include spectrum beyond the visible range as well. This increased number of spectral dimension gives detailed information about the objects and hence increases the classification accuracy. But at the same time it also increases the computational complexity. So, reducing...
In this study, we applied a novel method by using correlation coefficient filter for dimensionality reduction followed by fuzzy rough quick reduct algorithm for feature selection. The classification performance was evaluated using the gene subsets obtained from correlation based filter and our proposed method. Later we compared the results with other traditional classifier techniques. After suitable...
With the tremendous growth of usage of internet and development in web applications running on various platforms are becoming the major targets of attack. New threats are create everyday by individuals and organizations that attack network systems. Intrusion is a malicious, externally induced operational fault. Intrusion is used as a key to compromise the integrity, availability and confidentiality...
This paper demonstrates a high performance brain-computer interface (BCI) that allows users to dial phone numbers. The system is based on Canonical Correlation Analysis (CCA) and the automatic artifacts removal system based on BSS-CCA method and Steady-State Visual Evoked Potential (SSVEP). Through six frequency bands (9Hz, 10Hz, 11Hz, 12Hz, 13 Hz, 14Hz) displayed on the screen, subjects can choose...
The paper presents a unified approach to the statistical linearization of input/output mapping of non-linear discrete-time stochastic systems driven with white-noise Gaussian process. The approach is concerned with a possibility of applying any consistent measures of dependence (that is those measures of dependence of a pair of random values, which vanish if and only if these random values are stochastically...
Design water level is the basic parameter for Marine engineering design, which based on existing hydrological data of the port to calculate. In practice, the correlation between the short-time hydrological data of the newly built port and the long-term hydrological data of the nearby ports are often unable to meet the requirements of the standard calculation of extreme water level, and the result...
Feature selection is one of the most important pre-processing steps when we consider a data mining, pattern recognition or machine learning problem. Finding an optimal feature subset, among all the combinations, is a NP-Complete problem. Despite lot of research in this domain, feature selection for clustering is still an unsolved issue. In this paper, a binary particle swarm optimization (PSO) algorithm...
In digital image processing, template matching is a process to determine the location of sub image inside an image. The sub image, which is called template, usually has similarity with a part of the image. The template can be in different size, color or form. Template matching is famously used in image registration and object recognition. In this paper, we focus on the performance of the Sum of Squared...
MIMO technology increases channel capacity and data rates using multiple antennas and multiple receiver chains. In wideband scenario, each receiver has multiple copies of estimated channel matrices, and selection of a well conditioned channel matrix is required for faithful detection. There are ample of methods reported for channel estimation. This paper presents an algorithm which selects a desired...
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