在算法上
- 与 在算法上 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Fp-growth algorithm has disadvantages such as lower space utilization rate and slower execution time when mining the large datasets.
在Fp-growth算法的基础上,提出了一种新颖的关联规则挖掘算法。
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First,The properties of the spherical Bezier Curvesproposed by Ken Shoemake(Spherical Bezier curve of first kind)are listed,such asEndpoint property,Symmetry property,Invariant property under solid motion,Spherical convex hull property,etc.,and the fact that this kind of spherical BezierCurve is devoid of subdivision property is pointed out;Based on subdivision,theconcept of a new kind of spherical Bezier curve(Spherical Bezier curve of secondkind)is proposed.This kind of spherical Bezier curve is continuous differentiable.Furthermore,generalization of Bezier curve on more comprehensive manifolds isdiscussed.2Spherical Chaikin algorithm and general spherical corner-cuttingalgorithm.
首先,文中列举了Ken Shoemake提出的点点生成的球面Bezier曲线(第一类球面Bezier曲线)的性质,如端点性质、对称性质、运动不变性质、球面凸包性质等,并指出这种球面Bezier曲线没有剖分性质;基于细分,文中给出了一种新的球面Bezier曲线(第二类球面Bezier曲线)的构造方法,指出这种曲线是连续可微的;作为这些理论的应用,文中改进了Ken Shoemake提出的球面插值曲线构造方法;进一步,文中探讨了Bezier曲线在更广泛的流形上的推广方法。2球面Chaikin算法和一般的球面割角算法。
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In this paper we put forward a new algorithm which is designed on the basis of a springiness physical model.
该文在总结了国内外有关该课题研究方法的基础上,提出了一种基于物理模型的人脸表情动画生成算法,并依该算法设计和开发了一个实际的人脸表情动画系统 HU FACE。
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The PID parameter tuning of non-linear control system is set as the engineering background. The aim is the optimal design of PID parameter. On the basis of the design and research of the advanced PID parameter tuning, the mathematical model-transfer functionis developed through correlation analysis on statistical method.And with the optimization algorithm under constraint condition, the non-linear, Isqnonlin is set as object function. Then with connection of the non-linear constrain optimization algorithm and simulink technique, a set of adjust parameters which fit the performance index of the control system are found. And optimization design process and steps are provided.
本文以非线性控制系统PID参数整定为工程背景,以PID参数的优化设计为目标,在分析和研究国内外PID参数先进整定方法的基础上,运用相关分析实验统计方法建立对象的数学模型——传递函数,把PID参数设计问题转化为一种非线性优化设计问题,借助于约束条件下的优化算法,以非线性最小平方指标为目标函数,将非线性约束优化算法同Simulink仿真技术相结合,找出符合控制系统品质指标的一组调节参数。
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At last, we discuss the computational problems in solving the model. After an introduction of some common used algorithms and an analysis on their advantages and shortcomings, a new method for solving stochastic programrning stochastic dual dynamic programming is presented.
本章最后讨论了模型求解问题,在介绍常用随机规划算法和分析它们优缺点的基础上,给出一种新的求解方法一随机对偶动态规划算法。
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On ultra precision lathe, author propose the principle of error in-process measurement and compensation of cylinder, end and contour, and use adjusted straightedge and sensor to build error on-line measurement and compensation control system of end turning.
研究了基于模糊数和插值原理的模糊控制算法,并用该算法实现了压电陶瓷微动刀架伺服系统的闭环控制,使其控制精度达到了±0.01μm;在超精密车床上,提出了圆柱面、端面和轮廓加工的误差在线测量与补偿原理,并利用标定的直尺和传感器建立了端面车削误差在线测量和补偿控制系统。
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In order to meet the market for a variety of Chinese character processing needs, drawing the profile of font,in the Windows system, the edge recognition technology was researched. The pixels marginal detection from eight directions was introduced, BMP graphics was presented based on the eightmegapixel point the direction of the edge detection algorithm. The information of key data points was extracted.The XY motion simulation platform based on the straightline interpolation through point by point comparison was developed, the simulation of font path and engraving process was achieved.
为了满足市场上对各种汉字加工的需要,在Windows系统下,通过对汉字边缘识别技术的研究分析,提出了基于BMP图形像素点的八方向边缘检测算法,成功地识别和提取了不同参数的字体外形轮廓信息,并采用逐点比较直线插补算法,提取了关键数据点的信息,最后开发了XY运动仿真平台控制软件,实现了字体运动轨迹的仿真及实际雕刻加工。
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Combining with the evolution of congestion control mechanisms, the existed technologies for congestion avoidance and recovery in IP networks are reviewed. The unsolved problems and hot spots in subdiscipline, such as TCP flow control, end to end flow control and enhanced mechanism in intermediate nodes, are summarized, and the advantages and disadvantages of all kinds of schemes for active queue management are emphatically analyzed. Also the paper presents and discusses the drawbacks of heuristic designin...
以拥塞控制机制演化的历史为线索,回顾了IP网络中已有的拥塞控制技术;总结了TCP流量控制、端到端流量控制和中间节点增强机制等各研究子方向中需要解决的问题;重点分析了主动队列管理这一热点领域中已有策略和算法的优缺点,并在此基础上,归纳和阐述了大多数算法所采用的启发式设计加仿真试验验证的模式存在的不足;提出了应用控制理论中的分析和设计方法研究网络拥塞控制的思路,并给出几个有意义的研究方向
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The data submanifold embedding into the field action model submanifold, which realizes the structure approximation; ii .
在信息几何的em学习算法的基础上,我们提出了对偶校正学习算法和基于拓扑结构逼近校正学习理论。
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It realizes high-speed and selective action without the dependence on the submaster station, and shows more advantages than the centralized protection.
本文研究了几种当前流行的对等式通信方案,并对它们的可行性进行了比较。作者提出了网络式配电网保护的原理和逻辑算法,论证了算法的正确性,分别探讨了当配电网处于辐射状运行方式下和处于多电源并行供电方式下网络式保护的实现方案,并且在现有的硬件平台上进行了网络式保护控制装置的软件设计。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力