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- Performance Analysis of DCT-Domain Watermark Detection Based on Local Optimum Detection DCT域图像水印的局部优化检测性能研究
- Locally optimum detection 局部最佳检测
- Local optimum is not even an indication for the global optima. 局部利益与整体的利益并不一致。
- The optimum detection based on the maximum likelihood is realized through the parameter estimation of two kinds of image block DCT coefficients. 该方法利用DCT变换中图像块低频能量的差异将DCT系数划分成平滑和纹理两类;并分别对这两类数据进行参数估计以实现基于最大似然比的最优检测.
- When the bispectrum is small, this dual channel detection will become a likelihood detection system, and it is still an optimum detection system. 即使双谱信息很小时双通道检测系统退化为似然比检测系统，仍是最优的。检测器检测到指定的水印后利用独立分量分析技术进行水印盲恢复。
- This paper proposes the optimum detection algorithm for a multiple antenna system based on the Maximum A Posteriori (MAP) criterion. 该文基于最大后验概率准则，给出了垂直分层空时码的最佳检测箅法。
- The approach has also been advanced to speed convergence and avid local optimum. 该方案能够快速正确地实现分割，且不需事先认为的确定分割类数。
- Compared with TGA, the results show that ICSA has better capability in avoiding getting into local optimum and astringency. 3. 仿真结果表明，TGA和ICSA都可以有效的解决一定规模下的TSP问题，并且ICSA具有更高的收敛性，不易陷入局部最优。
- As a new optimization technique, chaos bears randomicity, ergodicity and the superiority of escaping from a local optimum. 摘要混沌是一种新颖的优化技术，具有随机性、遍历性的特点和易跳出局部极值的能力。
- In order to solve the problem of genetic algorithm in local optimum easily，this paper increases a tabu search in a mutation method. 为解决遗传算法易陷入局部最优的问题，提出了一种在变异算子中增加禁忌表的方法。
- The ergodicity of chaotic optimization can avoid it from dropping into local optimum easily;the randomicity and the order of it can provide plenty of temporal and spatial dynamic. 混沌优化的遍历性可作为搜索过程中避免陷入局部极小值的一种优化机制，随机性和规律性使它具有丰富的时空动态。
- When the optimum information of the swarm is stagnant, some particles in the population are initialized again to reduce the possibility of trapping in local optimum. 为减小陷入局优的可能性，当群体最优信息陷入停滞时，对群体进行部分初始化来保持群体的活性，并讨论了改进算法的适用范围。
- Because of GA s global optimum ability, using GA for codebook training can obstain a global optimum codebook, and overcome local optimum limitation of traditional algorithms. 遗传算法有卓越的全局优化搜索能力,易搜索到全局最优的矢量分类,形成高度优化的码书,可克服传统方法局部优化的缺陷。
- The method for calculating the optimum detectability ofultrasonic focussing probe is discussed theoretically. 从理论上推导了聚焦探头对缺陷最佳检测能力的计算方法。
- Abstract: The method for calculating the optimum detectability ofultrasonic focussing probe is discussed theoretically. 文摘:从理论上推导了聚焦探头对缺陷最佳检测能力的计算方法。
- In the optimization engine, genetic algorithm is adopted to avoid local optima. 在优化引擎中使用了遗传算法用来避免局部的优化解。
- Moreover, we improve the mutation to avoid the remaining local optima of GAs. 为了避免陷入局部最优，对变异算子进行了改进。
- Optimum Detection for Optical PPM Sampled Signal 光PPM取样信号的最大似然解调
- But along with the extending of the problem, GA tends to get local optimums. 但是随着问题规模扩大，简单遗传算法容易出现“早熟”或陷入局部极值。
- The mutated individual follows the advantage direction of current population, so it can jump local optimum and get the global optimum and it can avoid the semi-blind of conventional Darwinian-type evolutionary computation. 这样，在利用优势个体确定变异方向的同时，借助劣势个体来搜索潜在的优势个体，使得个体变异既能沿着当前种群的优势方向前进，又能跳出局部最优，寻求全局最优，从而成功地克服传统达尔文演化策略的半盲目性。
