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遗传算法在乘务员排班系统中的应用 被引量:5
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作者 林红 饶云波 李勇 《计算机技术与发展》 2007年第1期199-202,209,共5页
在排班系统中,一种公平、合理的排班方法对于调动工作人员的工作积极性、提高工作效率都具有重要的意义。阐述了乘务员排班系统基本情况,并建立了排班系统的排班通用算法模型和任务均衡算法模型,通过遗传算法对排班模型进行优化实现。... 在排班系统中,一种公平、合理的排班方法对于调动工作人员的工作积极性、提高工作效率都具有重要的意义。阐述了乘务员排班系统基本情况,并建立了排班系统的排班通用算法模型和任务均衡算法模型,通过遗传算法对排班模型进行优化实现。基于航空公司实际数据证明算法是合理的,也是有效的。 展开更多
关键词 排班系统 遗传算法 通用算法模型 任务均衡算法模型
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一种新的分形树递归算法的研究 被引量:6
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作者 张宝云 黄敏 《微计算机信息》 2010年第15期216-217,228,共3页
树木种类繁多,形态各异,在虚拟场景建模中具有广泛的应用,分形递归算法能够比较简单快捷的建立起分形树模型,但现有的分形树递归算法缺乏通用性,针对不同分枝形态的分形树需要建立不同的算法模型。本文对递归算法进行了改进,通过每次产... 树木种类繁多,形态各异,在虚拟场景建模中具有广泛的应用,分形递归算法能够比较简单快捷的建立起分形树模型,但现有的分形树递归算法缺乏通用性,针对不同分枝形态的分形树需要建立不同的算法模型。本文对递归算法进行了改进,通过每次产生不同的随机数控制生成多种分枝形态各异的分形树。实验结果表明,该算法具有很好通用性,高效简洁,能生成形态更加丰富自然的分形树。 展开更多
关键词 分形 分形树 递归算法 通用算法模型
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RCS analysis in the detection of a generic missile target with sea clutter background 被引量:2
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作者 LI Yang TAO Ran 《Science China Earth Sciences》 SCIE EI CAS 2014年第11期2845-2852,共8页
The detection of a missile target in heavy sea clutter is a significantly challenging problem due to the clutter effects. In this paper, the radar cross sections(RCS) of a pre-assumed generic missile model is computed... The detection of a missile target in heavy sea clutter is a significantly challenging problem due to the clutter effects. In this paper, the radar cross sections(RCS) of a pre-assumed generic missile model is computed with multilevel fast multi-pole algorithm(MLFMA), while the RCS of ocean surface is computed by a more reduced form of the fractional Weierstrass scattering model proposed here. At last, the computed RCS of missile model is compared with that of sea surface, and then the comparisons of missile-to-ocean RCS ratios of different incident angles, incident frequencies, and polarization patterns are also presented. The discussion and comparisons of RCS of the missile and ocean surface can help us to plan and design a radar system in the application of detection of a missile target or other analogous weaker targets in the strong sea clutter background. 展开更多
关键词 missile target sea clutter radar cross section (RCS) fractional Weierstrass scattering model multilevel fast multi-polealgorithm (MLFMA)
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Universal quantum computation with qudits
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作者 LUO MingXing WANG XiaoJun 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2014年第9期1712-1717,共6页
Quantum circuit model has been widely explored for various quantum applications such as Shors algorithm and Grovers searching algorithm.Most of previous algorithms are based on the qubit systems.Herein a proposal for ... Quantum circuit model has been widely explored for various quantum applications such as Shors algorithm and Grovers searching algorithm.Most of previous algorithms are based on the qubit systems.Herein a proposal for a universal circuit is given based on the qudit system,which is larger and can store more information.In order to prove its universality for quantum applications,an explicit set of one-qudit and two-qudit gates is provided for the universal qudit computation.The one-qudit gates are general rotation for each two-dimensional subspace while the two-qudit gates are their controlled extensions.In comparison to previous quantum qudit logical gates,each primitive qudit gate is only dependent on two free parameters and may be easily implemented.In experimental implementation,multilevel ions with the linear ion trap model are used to build the qudit systems and use the coupling of neighbored levels for qudit gates.The controlled qudit gates may be realized with the interactions of internal and external coordinates of the ion. 展开更多
关键词 universal qudit gate qudit circuit linear ion
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