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2012 8th International Conference on Natural Computation最新文献

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The application of Genetic Algorithms in component parameters design 遗传算法在零件参数设计中的应用
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234636
Xijun Zhu, Yawen Yan, X. Lu, Yijia Lu
This paper investigates the application of Genetic Algorithms (GAs) in component parameters design. From the perspective of profit per unit product, we have established the nonlinear programming model to determine the machine precision and product calibration value. After that, we solve the nonlinear programming model based on GAs, which can fix out the most appropriate component parameters to optimize the result. We conduct a comparative study between GAs and the enumeration method and give relevant analysis in the end of this paper.
研究了遗传算法在零件参数设计中的应用。从单位产品利润的角度出发,建立了非线性规划模型,确定了机床精度和产品标定值。在此基础上,求解了基于GAs的非线性规划模型,确定出最合适的部件参数,对结果进行优化。在本文的最后,我们对GAs和枚举法进行了比较研究,并进行了相关分析。
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引用次数: 0
Synchronization of FitzHugh-Nagumo systems: An adaptive approach FitzHugh-Nagumo系统的同步:一种自适应方法
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234686
Wei Wei, Min Zuo, Zaiwen Liu, Jing Wang
In this article, synchronization of FitzHugh-Nagumo (FHN) neurons is considered. Adaptive controller based on active compensation is adopted to drive the slave neuron to track the master neuron. Sufficient condition for asymptotic stability of the close-loop system is derived. Numerical simulation results are given to confirm the adaptive controller is valid.
本文考虑了FitzHugh-Nagumo (FHN)神经元的同步。采用基于主动补偿的自适应控制器驱动从神经元跟踪主神经元。给出了闭环系统渐近稳定的充分条件。数值仿真结果验证了自适应控制器的有效性。
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引用次数: 0
An effective approach to pedestrian detection in thermal imagery 热图像中行人检测的一种有效方法
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234621
Wei Li, Dequan Zheng, T. Zhao, Mengda Yang
In this paper, an integrated algorithm to detect humans in thermal imagery was introduced. In recent years, histogram of oriented gradient (HOG) is a quite popular algorithm for person detection in visible imagery. We implement the pedestrian detection in infrared imagery with this algorithm by adjusting the parameters. Simultaneously, we have increased some other geometric characteristics, such as mean contrast, which is used as features for the detection. After analyzing the property of the infrared imagery, which is designed to meet the shortfall of the HOG in infrared imagery, the combined vectors are fed to a linear SVM for object/non-object classification and we get the detector at the same time. After that, the detection window is scanned across the image at multiple positions and scales, which is followed by the combination of the overlapping detections. At last, a pedestrian is described by a final detection, and we have detected the pedestrians in the thermal imagery. Experimental results with OSU Thermal Pedestrian Database are reported to demonstrate the excellent performance of our algorithms.
本文介绍了一种热图像中人的综合检测算法。定向梯度直方图(histogram of oriented gradient, HOG)是近年来比较流行的一种可见光图像人物检测算法。通过调整参数,实现了红外图像中行人的检测。同时,我们增加了一些其他的几何特征,如平均对比度,作为检测的特征。在分析了红外图像的特性后,针对红外图像HOG的不足,将组合向量馈送到线性支持向量机进行目标/非目标分类,同时得到检测器。然后,在多个位置和尺度上扫描检测窗口,然后将重叠检测组合起来。最后对行人进行最终检测,并在热图像中对行人进行检测。在OSU热行人数据库上的实验结果证明了算法的优异性能。
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引用次数: 42
The effect of post-reactivation emotion on reconsolidation of item memory and source memory for Chinese words 再激活后情绪对汉语词汇项目记忆和源记忆再巩固的影响
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234762
Bo Wang
Memory consolidation refers to the process through memory, after being reactivated via retrieval, is again consolidated. Studies have shown that emotion elicited after learning can affect memory consolidation. However, many prior studies were based on animal studies. Furthermore, it is unclear whether the effect of emotion can extend to reconsolidation of different aspects of memory for an event. This study therefore examined the effect of post-learning emotion, elicited by video clips, on reconsolidation of memory for item memory and source memory for Chinese words. On day 1 participant learned a list of neutral, positive and negative Chinese words, and took immediate test of free recall. On day 2 (24 hours after the session in day 1) they returned to the laboratory, took a test of free recall for memory reactivation, and then watched a 3-min neutral, positive, or negative video clips for emotion elicitation. On day 3 (24 hours after the session in day 2), they returned to the laboratory and took a test of cued-recall. The results showed that whether negative nor positive, that was elicited after reactivation of memory through the paradigm of recalling, could affect the reconsolidation of both item memory and source memory. However, that item memory for emotional words were significantly better than for neutral words, whereas source memory for emotional words did not significantly differ from that for neutral words. This finding indicating that emotion has differential effects on item memory and source memory.
记忆巩固是指通过记忆,在通过检索被重新激活后,再次巩固的过程。研究表明,学习后引发的情绪会影响记忆的巩固。然而,许多先前的研究都是基于动物实验。此外,目前还不清楚情绪的影响是否可以扩展到对一个事件的记忆的不同方面的重新巩固。因此,本研究考察了视频片段诱发的学习后情绪对汉语词汇的项目记忆和源记忆再巩固的影响。在第一天,参与者学习了一组汉语中性、积极和消极词汇,并进行了即时自由记忆测试。第2天(第1天的24小时后),他们回到实验室,进行自由回忆测试以重新激活记忆,然后观看3分钟的中性、积极或消极的视频片段以激发情绪。第3天(第2天的24小时后),他们回到实验室进行线索回忆测试。结果表明,通过回忆范式重新激活记忆后所引发的消极记忆和积极记忆,对项目记忆和源记忆的再巩固都有影响。然而,情绪性词语的项目记忆显著优于中性词语,而情绪性词语的来源记忆与中性词语的来源记忆无显著差异。这一发现表明情绪对项目记忆和源记忆有不同的影响。
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引用次数: 0
The design of Neural A/D converter using neuron-MOS transistor 基于神经元- mos晶体管的神经A/D转换器的设计
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234650
G. Hang, Guofei Wang, Xiaohui Hu
A novel circuit realization of two parallel A/D converters based on the Hopfield's neural network is presented. The two neural A/D converters are constructed with comparators and Schmitt triggers, respectively, and they are all designed by using neuron-MOS transistors. The benefit of the proposed circuit realization with neuron-MOS transistors is that the structure of the circuit has been simplified significantly. The proposed circuits can be fabricated by standard CMOS process with a 2-ploy layer. From the HSPICE simulation results using TSMC 0.35μm double-polysilicon CMOS technology, the effectiveness of the proposed approach is validated.
提出了一种基于Hopfield神经网络的双并行A/D转换器电路实现方法。两种神经A/D转换器分别采用比较器和施密特触发器构成,均采用神经元- mos晶体管设计。利用神经元- mos晶体管实现电路的优点是电路结构得到了显著的简化。所提出的电路可以用标准的CMOS工艺制作,具有2层。采用TSMC 0.35μm双多晶硅CMOS技术的HSPICE仿真结果验证了该方法的有效性。
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引用次数: 2
An integrated optimization method to solve the berth-QC allocation problem 解决泊位- qc分配问题的综合优化方法
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234544
Meilong Le, Cong-cong Wu, Hong Zhang
This paper aims to use optimization method to solve the Berth-Quay Crane Allocation Problem. The objective used here is to minimize the total stevedoring time and the total operational cost. In order to solve the problem in reasonable time, the multi-objective Particle Swarm Optimization (PSO) method is designed. Five instances with 30, 40, 50, 60, 70 ships are used for testing the model and PSO. The result of experimental computations indicate that the algorithm is effective and the model can get the optimal trade-off solution between time and cost. Compared with the single-objective model, the multi-objective model is more beneficial to the whole shipping system.
本文旨在用最优化方法解决泊位-码头起重机配置问题。这里使用的目标是最小化总装卸时间和总操作成本。为了在合理的时间内求解该问题,设计了多目标粒子群优化算法。分别用30、40、50、60、70艘船的5个实例对模型和PSO进行了测试。实验计算结果表明,该算法是有效的,该模型能够得到时间和成本之间的最优权衡解。与单目标模型相比,多目标模型对整个航运系统更有利。
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引用次数: 4
Support vector machine for the liquid drop fingerprint recognition 支持向量机用于液滴指纹识别
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234716
Q. Song, Hui Yuan, Xisheng Liu, Chen Qiu
In this paper, we introduce liquid drop fingerprint, a feature extraction method called waveform analysis and support vector machine, then discuss the recognition method of liquid drop fingerprint. The waveform analysis method can grasp the main features of the liquid drop fingerprint, greatly reduce the information needed for recognition and improve recognition efficiency. Support vector machine technology is particularly suitable for pattern classification. By using waveform analysis and support vector machine in liquid drop fingerprint recognition, we can get good results.
本文介绍了液滴指纹、一种称为波形分析的特征提取方法和支持向量机,讨论了液滴指纹的识别方法。波形分析方法可以掌握液滴指纹的主要特征,大大减少了识别所需的信息,提高了识别效率。支持向量机技术特别适用于模式分类。将波形分析和支持向量机应用于液滴指纹识别,取得了较好的效果。
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引用次数: 2
Dynamic topology optimization based on ant colony optimization 基于蚁群优化的动态拓扑优化
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234634
Hyeon-Cheol Jo, Kwang-Seon Yoo, Jae-Yong Park, Seog-young Han
A modified ant colony optimization algorithm implementing a new definition of pheromone and a new cooperation mechanism between ants is presented in this paper. The study aims at improving the suitability and computational efficiency of the ant colony optimization algorithm in dynamic topology optimization problems. The natural frequencies of the structure must be maximized yet satisfying a constraint on the final volume. Optimization results obtained in three test cases indicate that modified ACO is more efficient and robust than ACO in solving dynamic topology optimization problems.
提出了一种改进的蚁群优化算法,实现了信息素的新定义和蚁群间新的合作机制。本研究旨在提高蚁群优化算法在动态拓扑优化问题中的适用性和计算效率。结构的固有频率必须最大化,同时满足对最终体积的限制。三个测试用例的优化结果表明,改进蚁群算法在求解动态拓扑优化问题时比蚁群算法具有更高的效率和鲁棒性。
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引用次数: 3
Research of electrical impedance tomography based on the Modified Particle Swarm Optimization 基于改进粒子群优化的电阻抗层析成像研究
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234558
Hui Zhang, Haibin Wang, Yongjun Zhou, Xiaodi Zhang
The particle swarm optimization (PSO) is a robust stochastic evolutionary computation algorithm based on the movement and intelligence of bird swarm, it can overcome the drawbacks of the Newton-like iteration algorithm in EIT. This paper presents the Modified Particle Swarm Optimization(M-PSO) algorithm to reconstruction the conductivity distribution in EIT imaging, where the circle-domain solved is discretized into irregular polygons by the Finite Element Method (FEM), trigonometric current pattern and the M-PSO are adopted to reconstruct the conductivity distribution where has one or two targets in the circle-domain. The numerical simulation result shows that the methods given in this paper can reflect accurately the conductivity distribution and locates the targets.
粒子群优化算法(PSO)是一种基于鸟群运动和智能的鲁棒随机进化计算算法,它克服了类牛顿迭代算法在EIT中的不足。本文提出了一种改进粒子群优化算法(M-PSO)来重建EIT成像中的电导率分布,该算法通过有限元法将解出的圆域离散成不规则多边形,采用三角电流模式和M-PSO来重建圆域中有一个或两个目标的电导率分布。数值模拟结果表明,本文所提出的方法能够准确反映目标的电导率分布并对目标进行定位。
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引用次数: 1
Analysis of dynamic behavior for Vanderpol oscillator under the single-input periodic signal 单输入周期信号下范德波尔振荡器的动态特性分析
Pub Date : 2012-05-29 DOI: 10.1109/ICNC.2012.6234524
Jihong Song, W. Yi
This paper addresses the dynamic behavior of for Vandepol oscillator under the single-input periodic signal turbulent in non-Gaussian color noise environments, the methods of State space analysis methods are introduced to educe out the threshold of chaotic movement of non-linear system. It is found that the chaotic threshold is decided by the value of parameters in the Vandepol oscillator; the non-Gaussian color noise has little effect on the system's ultimate dynamic behavior when the oscillator is in the chaotic behavior. The parameters slight changes of single-input periodic signal will induce the great differently of dynamic behavior. Numerical results confirm our conclusion that the Vandepol oscillator is immune to zero mean square non-Gaussian color noise.
本文研究了非高斯色噪声环境下单输入周期信号湍流作用下Vandepol振荡器的动力学行为,引入了状态空间分析方法来降低非线性系统混沌运动的阈值。研究发现,混沌阈值由Vandepol振子中参数的取值决定;当振子处于混沌状态时,非高斯色噪声对系统的最终动态行为影响不大。单输入周期信号参数的微小变化会引起系统动态特性的巨大差异。数值结果证实了Vandepol振荡器不受零均方非高斯色噪声的影响。
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引用次数: 0
期刊
2012 8th International Conference on Natural Computation
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