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backward-dynamic
相关语句
  相似匹配句对
     DYNAMIC
     动态
短句来源
     Dynamic
     地方科技动态
短句来源
     EVOLUTION OF DYNAMIC GAMES AND BACKWARD INDUCTION
     逆向归纳与进化动态博弈(英文)
短句来源
     Realization of backward algorithm for dynamic programming using MATLAB
     基于MATLAB的动态规划逆序算法的实现
短句来源
     In the deducing process we use the Backward-deduction method of dynamic programming.
     模型推导过程中使用了动态规划的逆向推导法。
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In this paper,The general recursive dynamic equations of motion of complex flexible multibody mechanical systems with closed -loopare derived based on the Jordain's principle. The topological structure of the system is described by graphic theory. The relative joint coordinates are used to describe the large displacements between contigous bodies,and the modal coordinates the elastic deformation. For the closed -loop subsystems,the joint-cut method is used to set up their kinematical constraint eqations. The...

In this paper,The general recursive dynamic equations of motion of complex flexible multibody mechanical systems with closed -loopare derived based on the Jordain's principle. The topological structure of the system is described by graphic theory. The relative joint coordinates are used to describe the large displacements between contigous bodies,and the modal coordinates the elastic deformation. For the closed -loop subsystems,the joint-cut method is used to set up their kinematical constraint eqations. The process include position,velocity,acceleration forward recursive calculation and backward dynamic equations,acceleration constraint equations reduction calculation. The method in this paper is well suited forparallel computation and used to high speed realtime dynamic simulation of mechanical systems.

基于Jordain变分原理建立含闭环的复杂柔性多体机械系统递推形式动力学通用方程.用图论描述系统的拓外结构,分别用铰相对坐标与模态坐标描述相邻物体间的大位移运动及物体的弹性变形.对含闭环的系统,用铰切割方法建立相应的运动学约束方程,结果为一组拆合形式的动力学递推方程和折合形式的加速度约束方程,适合于建立该类系统的并行计算方法和用于实时动力学仿真。

First the article analyses the sum rule of an investment and it's gain while profits are constant or variable,then the article gives us the mathematical formula of continuous investments put into producing subjects some times ago and the value at present by using mathematical's convolution and points the relation between foreword dynamic-investmentformula and backward dynamic-investment-formula. using these result,the article simply discusses"the Net Present Value Method "and" the Internal Rate of Returnnin...

First the article analyses the sum rule of an investment and it's gain while profits are constant or variable,then the article gives us the mathematical formula of continuous investments put into producing subjects some times ago and the value at present by using mathematical's convolution and points the relation between foreword dynamic-investmentformula and backward dynamic-investment-formula. using these result,the article simply discusses"the Net Present Value Method "and" the Internal Rate of Returnnin common investment analyses. Finally,the article gives the formulas of investment result involving that prize is varies and being dispersion.

本文先分析利息率恒定和变动两种状态下投入资金的增殖规律,然后运用数学的卷积知识,得出连续投入资金增殖的数学形式.并提出动态投资前向表达式和后向表达式及两者之间的关系.利用所得的结果,简要讨论了投资分析中常用的“净现值法”和“内部收益比较法”.之后,分析了在物价变动情况下的投资效果卷积式.最后,扼要介绍了分析投资效果的离散形式.

In this paper,word form probability,word form coefficient and word lattice are introduced to construct a word formality based segmentation model,and a two way scanning segmentation algorithm is implemented incorporating backward dynamic programming algorithm with forward stack decoding algorithm.Not only the statistic law on word formality,but also the principle of longest word first to some extent is reflected in the model,due to the introducing of word form probability and coefficient.Finally a segmentation...

In this paper,word form probability,word form coefficient and word lattice are introduced to construct a word formality based segmentation model,and a two way scanning segmentation algorithm is implemented incorporating backward dynamic programming algorithm with forward stack decoding algorithm.Not only the statistic law on word formality,but also the principle of longest word first to some extent is reflected in the model,due to the introducing of word form probability and coefficient.Finally a segmentation accuracy rate of 99 6% and a disambiguation rate of 93 44% are achieved in the primary experiment.

本文在分析汉语分词一般模型基础上,引入词形概率、词整合系数和词形网格等概念,提出了一个基于词形的汉语文本切分模型,并实现了一个反向动态规划和正向栈解码相结合的二次扫描的汉语文本切分算法。由于引入了词形概率、词整合系数,本模型不仅反映了词形统计构词规律,而且在一定程度上体现了长词优先的切分原则。初步测试表明,本方法的切分准确率和消歧率分别可达996%和9344%。

 
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