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Video and audio streams in large-scale multimedia sensing system are high-volume, while computation and power resources are very scarce, which restricts the usage of complex data security process on multimedia data. Therefore, the confidentiality of video data under resources constraints is studied in this paper. Firstly, the trend of resources constraints is discussed, and an analysis model for multimedia...
A DNA genetic algorithm with reconstruct operator (rDNA-GA) is presented in this paper. In the proposed algorithm, potential solutions of the problems are represented as individuals with nucleotide bases, and genetic operators inspired by DNA operations are adopted over the individuals. Among the genetic operators, reconstruct operator is a new operator which is used to improve the diversity of the...
If the ship is damaged, we should try our best to guarantee its unsinkability. Ship unsinkability is one of the most important aspects of ship survivability. The intelligent decision support system of ship unsinkability design in the first design stage is founded in this paper. The intelligent decision support system consists of two main functions. One is manual ship unsinkability design and the other...
For the system of vibration faults diagnosis of hydraulic turbines, the deficiency of generalization ability using single BP Network is analyzed and a radial basis function (RBF) neural network algorithm based on particle swarm optimization (PSO) is presented. It has advantage of being easy to realize, simple operation and profound intelligence background. The parameters and connection weight are...
In this paper, a modified Pareto differential evolution algorithm approach is introduced to solve multi-objective optimization problems. The modified approach including: improving the crowding mechanism by introducing the Niche theory, introducing a time variant scaling factor F, and using a simple but efficient mutation operator which combines information of the both better and worse solution in...
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