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In real application, many important physical phenomena are sufficiently localized that adaptive finite element analysis methods are necessary. In the numerical solution of practical problems in engineering and physics such as in electromagnetic mechanics, the overall accuracy of numerical approximations often deteriorates due to local singularities like those arising from re-entrant corners of domains,...
In a RFID (Radio Frequency Identification)-enabled system, RFID tags often need to change hands from one owner to another during their lifetime, which makes the design of excellent RFID tag ownership transfer schemes more urgent than ever before. In this paper, we propose a lightweight mutual authentication and ownership transfer scheme, which conforms to the standard EPC Class-1 Generation-2 (EPC-C1G2)...
In wireless sensor networks(WSNs) code dissemination is an important technology to remotely add new functionality or fix bugs after the sensors are deployed. As WSNs is usually in hostile environments, secure code dissemination has been a major concern. Most code dissemination protocols are Deluge-based which have to take much energy and memory to deal with the problem caused by out-of-order-delivery...
In this paper, the Adaptive Neuro-Fuzzy Inference System (ANFIS) is used for the classification of the epileptic electroencephalogram (EEG) signals. The ANFIS combines the adaptation capability of the neural networks and the fuzzy logic-based qualitative approach together. A given input/output data set is deployed to construct a fuzzy inference system, whose membership function parameters are trained...
Security KISS is a popular virtual private network tool used to protect privacy, ensure anonymity and bypass Internet restrictions. In this paper, we use Black-box analysis method and White-box analysis method to analyze the communication behavior and the encryption algorithm of the software. We get the workflow and the internal structures of the software in detail. In addition, we analyze the security...
By using the manifold distance as the similarity measurement, a multi-agent evolutionary clustering algorithm based on manifold distance (MAEC-MD) is proposed in this paper. MAEC-MD designs a new connection based encoding, and the clustering results can be obtained by the process of decoding directly. It does not require the number of clusters to be known beforehand and overcomes the dependence of...
In order to efficiently recognize the partially ordered or interleaved, multiple plans, treat the partial observability of the domains and exclude misleading actions, in this paper, we designed a new plan recognition algorithm based on extending and pruning the Explanation Graph and then implemented it using the VC++ programming language. The results of test experiment indicate that the algorithm...
With the development of Internet and computer technology, the digital videos increase explosively, so how to get the interesting video clips from the massive video dataset quickly and efficiently has become an urgent problem in the field of information retrieval (IR). In this paper, a new Instance-based video search (INS) engine is proposed to solve the urgent problem. Firstly, video key-frames are...
The data placement strategy is an important issue in the scientific workflows which is devoted to reducing the data movements while placing datasets in a few data centers according to the data centers' storage capacity and the data dependency. The data placement is proved to be a NP hard problem, and several methods for this problem like K-means clustering algorithm are presented in the literatures...
Let $R_{0, n}$\, be the real Clifford algebra generated by vectors $e_{i}$, $i=1, 2, \cdots, n$, where and if $i\neq j$, $i, j=1, 2, \cdots, n$. is the unit element. In this paper, the Hilbert boundary value problem in the unit ball is investigated.
The algebraic method with computerized symbolic computation is applied to construct a series of travelling wave solutions for the generalized KP_BBM equation. Compared with most existing symbolic computation methods such as tanh method and sine-cosine method gives new and more general solutions. And the result implies that the tupes of the solution not only depend on the parameters of the nonlinear...
In this paper, a kind of nonlinear and non-convex optimization problems under the constraints expressed by a system of mixed fuzzy relation equations with max-min and max-average composition is investigated. First, some properties of this kind of optimization problem are obtained. Then, a polynomial-time algorithm for this optimization problem is given based on these properties. Furthermore, we show...
A new method for image denoising was presented", "which colligated the strong point of wave atoms transform and Cycle Spinning. Due to lack of translation invariance of wave atoms transform", "image denoising by coefficient thresholding would lead to Pseudo-Gibbs phenomena. Cycle Spinning was employed to avoid the artifacts. Experimental results show that the method can remove...
If we use the image haze removal of dark channel prior, we're prone to color distortion phenomenon for some large white bright area in the image. Aimed at these problems, this paper presents an image haze removal of wiener filtering based on dark channel prior. The algorithm is mainly to estimate the median function in the use of the media filtering method based on the dark channel, to make the media...
In this paper, a method is proposed to estimate the log-polar coordinates coefficients using Multilayer-peudopolar Fractional Fourier transform (MPFFT). The MPFFT grid is dense at low coefficients and sparse at high coefficients. This character is geometrically similar to the log-polar grid. Large translations, rotations and scaling in images can be estimated. Experimental results show that the proposed...
A novel Cultural Quantum-behaved Particle Swarm Optimization algorithm (CQPSO) is proposed in this paper to improve the performance of the Quantum-behaved PSO (QPSO). The cultural framework is embedded in our QPSO, and the knowledge stored in the belief space can guide the evolution of the QPSO. A total of 15 high-dimensional and multi-modal functions as well as an optimal pressure vessel design problem...
In order to study the interval multiple attribute decision making problem with triangular fussy number and uncertain weight, this paper presents a new method based on cosines similar degree. The detailed procedure of the proposed algorithm and numerical experiment are given. The proposed algorithm is also compared with an existed algorithm. Compared results show that the proposed algorithm are effective...
Sina Weibo is the most popular and fast growing microblogging social network in China. However, more and more spam messages are also emerging on Sina Weibo. How to detect these spam is essential for the social network security. While most previous studies attempt to detect the microblogging spam by identifying spammers, in this paper, we want to exam whether we can detect the spam by each single Weibo...
With the development of silicon technology, the scalability and complexity of SoC greatly challenge traditional on-chip interconnection, such as on-chip buses. On-chip networks are efficient architectures to solve the problem of onchip transmission. When silicon industry enters deep submicron era, the reliability of on-chip networks are becoming a protruding problem. The paper addresses the issues...
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