We then do a performance investigation , comparing cache - oblivious algorithms with traditional ram - model algorithms . in the last , on the basis of thorough research , we present an optimal sub - linear working space cache - oblivious sorting algorithm . we conclude that cache - oblivious algorithms do outperform traditional ram - model algorithms when working on large data sets 接着通过性能测试,把高速缓存参数无关算法与传统的基于ram模型的算法做了比较,最后,在深入研究的基础上提出了一个最优的子线性工作空间的高速缓存参数无关的排序算法。
Using the f - ahp model algorithms that based on fuzzy number and interval arithmetic solve the multi - attributes and fuzzy problems of agricultural project appraisal . using entropy weight ranking of f - ahp is more efficiency . using a - cut and index of optimism x . estimate the uncertainty and preference of decision makers 用基于模糊数、区间数运算法则的f - ahp模型解决了农业项目投资评估的多属性及模糊性问题;采用熵权使得排序更加科学;通过置信度与乐观指数考虑了不确定性及决策者的风险态度。
As a result of modeling assumption study , i discuss a special kind of modeling assumption , relevance assumption , which defines the relation between model fragments and objects being modeled , and maps concrete model goal to model fragments . i consider cm in the view of relevance reasoning and develop a qualitative modeling algorithm , in which each model fragment is being related to some kinds of modeling goal and task 在此基础上,本文继续研究了一类特殊的模型假设,即关联假设,后者从模型片断与被描述对象间的关系出发,将模型片断与建模任务联系起来,本文提出基于关联假设的推理算法,就是利用关联假设来辅助定性建模任务中的模型片断选取。
In this paper , i have established a appraisement index system after synthetically consideration affecting factor of trolleybus and bus in managing quality , determined right number of each index by grade analysis law , determined appraisement grade of each index by investigating to queue up , determined appraisement matrix by expert inquiry , calculated subordinating level which beijing ' s managing quality of trolleybus and bus in managing quality to each appraisement grade by " m ( , ) " model algorithm in vague mathematics . according to identification principle , i have reached conclusion 本论文在综合考虑公共电汽车运营质量影响因素的前提下,确定了公共电汽车运营质量评价指标体系,采用层次分析法确定指标权数,通过调查排队来确定各指标的评价等级,通过专家调查法确定评价矩阵,利用模糊数学中m ( ? ? )模型算法计算一个城市公共电汽车运营质量对“优、良、中、差”的隶属度,根据识别原则,得出结论。
With the development of multimedia and virtual reality , efficient 3d modeling algorithms which can realize the real - time computation are increasingly needed . 3 - d model is essential to the object recognition , automatic design , video games , and digitalization of historical relics , reconstruction of historical buildings , and visual scene reconstruction 随着计算机视觉和虚拟现实的发展,三维模型重构问题日益成为计算机科学中的一个重要课题, 3d模型广泛用于对象识别,工业自动设计,视频游戏,动画制作,数字文物档案建立,建筑物原貌恢复等方面,同时要求重构有较高的效率以实现实时计算。
The definitions of fuzzy colored petri net and fuzzy petri net are modified . and two modeling algorithms based them are proposed to solve issues of existing fuzzy petri net models . therefore , fuzzy petri net models can reason correctly complex problems according to mechanism in themselves 扩展了模糊有色petri网系统和模糊petri网系统,并分别提出了两者的推理建模算法,以解决己有模糊petri网模型存在的问题,使模糊petri网能够完全依靠自身机理实现复杂实际问题的正确推理。
The basic principle of predictive control technology is introduced . the methods of mac ( model algorithm control ) and gpc ( generalized forecast control ) are emphasized and their specialities and deficiencies are analysed . at the end of this paper a matlab simulation program of gpc is given 3 、介绍了预测控制的基本原理,重点介绍了mac (模型算法控制)和gpc (广义预测控制)的基本方法,分析了mac与gpc各自的特点与不足,通过不同的实验演示了在选择不同控制参数的情况下mac与gpc的控制效果,并在本文的最后给出了gpc算法的matlab仿真程序。
The seismic modeling algorithm includes in two key steps in which one is for calculating effective elastic parameters in a fractured and caved media by using elastic wave equation , the other is for wave extrapolating by using acoustic one - way wave equation based on an equivalent geology model consisting of those effective parameters 地震正演方法包含两个关键步骤,一是利用弹性波动方程计算含缝洞介质的有效弹性参数,另一步骤是根据有效弹性参数构成的等效地质模型,用单程声学波动方程进行波场延拓。
A soft sensor modeling algorithm based on improved fuzzy neural network is presented . the normalized average output membership functions are defined as fuzzy basis functions for defuzzification calculation . in order to improve the property of convergence , some parameters of the fuzzy neural network are trained by levenberg - marquardt algorithm , and the others are trained by gradient descent algorithm 提出了一种改进的模糊神经网络软测量建模方法,采用规则化的平均输出隶属度函数作为模糊基函数进行反模糊化运算;在训练网络时,部分参数采用levenberg - marquardt算法来训练,另一部分采用一阶梯度下降法。
It compares and analyzes many real time transportation methods of mpeg - 4 video bits , and selects the adaptive rate control algorithm for this system ; it also discusses rtp / rtcp protocol and rtp payload format for mpeg - 4 visual streams , feedback control algorithm and error control methods ; it has comprehensive research about the quadratic r - d model algorithm and improves it . finally , these technologies are applied in smart home system , using xvid , jrtp open source software , video4linux and directshow technologies 分析和比较mpeg - 4码流在internet上的几种实时传输方案,选择了自适应编码方案作为本系统的传输方案;对rtp rtcp协议、 mpeg - 4码流在rtp中的包结构、端到端的反馈控制算法和差错控制的解决方案以及基于二级r - d速率控制算法进行了深入的研究,并对二级r - d速率控制算法进行了改进。