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template were denoted with 5 parameters. Image gradient, gray and geometry features were combined to define an energy function, and genetic algorithm was used to optimize the energy function to find...; placement machine; sub-pixel; genetic algorithm 随着贴片元件的微型化以及引脚间距的密集化,芯片贴装领域对贴片机视觉系统的精度提出了更高的要求,因此,必须建立精度更高的视觉定位算法.贴片机视觉系统定位算法主要包括贴片元件定位算法和印刷电路板(PCB)定位算法2个部分,其中贴片元件定位是对贴片元件中心相对于吸嘴中心的偏移量和贴片元件在拾取过程中的偏转角度进......
(DE) algorithm based on genetic algorithm (GA) and other evolutionary algorithms (EA) was presented by Storn et al[1-2]. DE is a parallel searching algorithm which applies real vector coding to search...Improved differential evolution algorithm for solving constrained problem ZHAO Juan(赵娟)1, 2, CAI Tao(蔡涛)1, 2, DENG Fang(邓方)1, 2, SONG Xiao-qing(宋晓青)1 (1. School of Automation, Beijing Institute......
Trans. Nonferrous Met. Soc. China 27(2017) 686-693 Recovery prediction of copper oxide ore column leaching by hybrid neural genetic algorithm Fatemeh Sadat HOSEINIAN1, Aliakbar ABDOLLAHZADE1,2, Saeed...: The artificial neural network (ANN) and hybrid of artificial neural network and genetic algorithm (GANN) were applied to predict the optimized conditions of column leaching of copper oxide ore with relations......
lamellae in TC17 alloy. The material constants in these functions are determined using the genetic algorithm-based objective optimization technique. The globularized fraction of α lamellae during... parameters show good agreement with the experimental values. Key words: titanium alloys; sensitivity analysis; globularized fraction; genetic algorithm 1 Introduction It is well known that the mechanical......
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especially when the intersection includes bottlenecks. Key words: comprehensive efficiency; vehicle number; signal timing parameters; Genetic Algorithm 交通拥堵已成为制约世界各大城市可持续发展的普遍问题,如何在给定的城市路网条件下,采用先进的交通管... approaches 本文以10个信号周期为优化时间间隔,假设所有路段的自由流速度均为14 m/s,结合上述输入参量,通过遗传算法求解节点的配时参数值. 3.2 算例求解 遗传算法(Genetic Algorithm)是依据适者生存,优胜劣汰的进化原则对包含可能解的群体反复进行遗传操作,寻求最优或近似最优解的随机搜索算法,已被广泛应用于数学优化,自动控制,图像处理与模式识别等方面,主要内容包括编码......
algorithm by Genetic algorithm (GA) and error back propagation algorithm (BP) was used to tune the weight values of the network. Finally, the improved neural network was utilized to identify the AUV... of convergence and identification precision. Key words: underwater vehicle; system identification; neural network; genetic algorithm; back propagation algorithm 随着科学的迅猛发展,控制系统越来越复杂,控制精度要求也越来越高,精确建模就尤为重要,因此,被控对象......
genetic algorithm is used for the optimization of composite laminate stacking sequence under low-velocity impact loads based on a 2D dynamic impact finite element analysis. Low-velocity impact tests...Design Optimization of CFRP Stacking Sequence Using a Multi-Island Genetic Algorithms Under Low-velocity Impact Loads王宏晓,段玉岗,ABULIZI Dilimulati,ZHANG XiaohuiState Key Lab for Manufacturing Systems......
and the thermal process in cylinder. The fuel consumption rate was chosen as optimum objective in the condition of different depths and different speeds, and the genetic algorithm was used to optimize... engine.Key words:thermodynamics; cam piston engine; working gas distribution valve; multi-objective optimization; genetic algorithm......
; 文献标志码:A 文章编号:1672-7207(2018)06-1387-06 An improved genetic algorithm based routing optimization on active surface... on the best individuals among groups. The results show that improved genetic algorithm (GA) has better performance than traditional GA in convergence speed and stability, and it can be used to improve......
