共查询到20条相似文献,搜索用时 265 毫秒
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蚁群算法是根据真实蚁群的觅食原理提出的一种新兴的启发式智能搜索算法.本文将蚁群算法应用于图像边缘搜索提取中,通过蚂蚁的智能特征,自适应的调整自己的行为,对图像边缘进行搜索提取.同时,引入了"精英蚂蚁"的概念,将精英蚂蚁的概念与蚁群算法想结合,优化了搜索过程,并提高了搜索速度. 相似文献
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蚁群算法在搜索过程中容易陷入局部最优解,且不适用于连续对象优化问题。文章针对这些问题.采用信息量变异、引入微粒群操作等方法进行改进,提出了一种引入微粒群操作的改进蚁群算法,并应用于求解连续对象优化问题。对几个典型复杂连续函数优化问题的测试研究表明,该改进算法不仅跳出局部最优解的能力更强.而且能较快地收敛到全局最优解,表明了算法的有效性。 相似文献
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蚁群算法是模拟蚁群寻找最短路径时的交互过程的一种算法,是受蚂蚁的行为启发而发展出来,已经广泛应用于组合优化问题的求解等方面问题,但其收敛速度一直是该领域讨论的热点问题。本文结合著名的ACS算法,提出一种基于多样化个体的蚁群系统算法ACS—DI,通过TSP对其进行验证。实验证明,此算法增强了搜索能力及收敛速度。 相似文献
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在解决QoS(quality of service)单播路由问题上,针对蚁群算法缺点,提出了一种融合量子粒子群算法(QP-SO)思想的多行为蚁群算法.该算法采用QPSO作为前期搜索,根据各粒子历史最优值来初始化路径信息素浓度,后期利用多行为蚁群算法来优化路径.仿真结果表明:该算法寻优能力强,可靠性高,是解决QoS路由问题的有效方法. 相似文献
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The article describes a model representation of radar probing data in form of a mixture of background and target samples, which is the sum of two random variables with very different parameters. For model development we research the behavior of the central moments of the distribution mix without assuming the distribution law form. An example it is described the detection of the signal at the output of compression system of chirp ionosonde. 相似文献
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解决IP网QoS问题是目前通信领域的研究热点之一.虽然研究已经取得了一定的进展,但人们对于IP 网QoS本身的含义及相关的问题还有着不同的理解.本文将从IP网QoS的定义入手讨论相关的一些问题以及解决IP网QoS问题所做的各种努力. 相似文献
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《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1968,56(6):1024-1032
Assuming that visual responses are due to the action of particles on the membrane of the visual cells, the stochastic variability of the response should be a function of the number of particles producing it. Quantitative predictions can be made with the aid of a model proposed in previous articles. It is found that responses produced in visual cells of Limulus by absorption of a single photon have the stochastic properties which would be expected if the response to one photon were brought about by 25 particles. It is concluded from this that the processes leading to visual responses produce multiplication of particles. The effects of temperature and of metabolic poisons suggest that these processes are of chemical nature. 相似文献
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A. M. Emel’yanov 《Semiconductors》2010,44(9):1134-1139
A method for analyzing the luminescence spectra of semiconductors is suggested. The method is based on differentiation of
the spectra. The potentialities of the method are demonstrated for luminescence in the region of the fundamental absorption
edge of Si and SiGe alloy single crystals. The method is superior in accuracy to previously known luminescence methods of
determining the band gap of indirect-gap semiconductors and practically insensitive to different conditions of outputting
radiation from the sample. 相似文献
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“计算机组成原理”设计性实践教学模式研究 总被引:1,自引:0,他引:1
本文阐述了"计算机组成原理"设计性实验教学的重要性,对设计性实验教学的目的和基本特征进行了归纳,对"计算机组成原理"设计性实验教学的现状进行了调查,对存在的问题进行了较深入的分析;在此基础上.对组成原理设计性实验的教学模式进行了研究,对设计性实验的体系进行了初步设计,并对"计算机组成原理"设计性实验的实施方法进行了探讨. 相似文献