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The microcosmic topology structure of a network are known to have great influence on its macroscopic behavior. To go one step closer to biological system which displays sparsely connected architecture and complex network property, we studied a general sparely connected associative memory model using signal-to-noise analysis. Theoretical solutions for the computational performance of this model with...
Sentence similarity compute is an important part in question answering system based on frequency asking questions. The accuracy of the existing sentence similarity algorithm needs to be improved, so this paper presents a revised question similarity compute method. We combine the word order feature with vector space model algorithm. When we use the VSM to compute the question similarity, we propose...
Aiming at the actuality of Integrated Support Engineering(ISL) of ships and taking the operational readiness of ships as a research goal, the optimization model of warship formation's spare parts was established with the goal of minimizing the cost-effective rate, considering the requirement of operational availability of warship formation and the constraint of the cost of spare parts. The steps of...
The distributed system's scale increases gradually so that traditional survivability evolution methods based on mathematical model can't be applied. Firstly, Quality of Service (QoS) being the manifestation of system viability is analyzed in this paper. Secondly, a calculation method for the correlations between Qos is presented, and then a quantifiable evolution method for key attributes and distributed...
An improved quantum genetic algorithm (IQGA) is proposed for path planning of mobile robot in unknown environment, which uses problem-specific quantum genetic algorithm for robot path planning instead of the standard genetic algorithm(GA) and quantum genetic algorithm(QGA). Six genetic operators operated chromosomes and improved fitness function to evaluate new individuals, and this algorithm is capable...
The classical C-V algorithm has the shortage about multi-iterative operations and the computational time is too long to segment the large size image. On the base of analysis upon the relationship between the image size and the number of iterations and time to get the right result, the article proposes a fast image segmentation algorithm based on local C-V active contour model which are based on threshold...
Flow behavior of fine particle agglomerations in CFB was numerically studied by means of a two-fluid flow model considering dynamics of collision between fine particles. The model of particle viscosity and pressure of particle agglomerations were proposed, and the size of agglomerations was estimated by model proposed by Zhou et al (1999) from force balance acting on an agglomerations. The results...
Security has become an important issue in Web Services application, which has been widely concerned. This paper introduces several security policy models that widely applied and analyzes the basic principles. And then a simple comparison was made for the scope and merits of these models, finally this paper points out the Web Services security research.
To deal with the selection of BPM software and lack of unified trustworthy evaluation index standards, this paper summarizes a systematic and reasonable BPM software trustworthy evaluation index system from the two dimensional prospective. By introducing a set of linguistic evaluation scales and the related notions, a multi-attribute group decision-making model base on AHP and linguistic scales is...
The multiresolution time domain based on Daubechies' scaling function with two vanishing wavelet moments is tested in the numerical analyses of the homogeneous cavity and compared with conventional FDTD scheme, the result gives much higher accuracy than FDTD.
In this paper, we explore the use of particle swarm optimization (PSO) as the key search approach of a methodology for estimating the parameters of the discrete Volterra time-series to model nonlinear communication channels. Neither the system order nor the number of time delays need to be prespecified a priori in the identification process. The proposed approach exhibits excellent anti-noise character...
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