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This paper improved the traditional hidden line removal algorithm in a 3D solid scene: the Roberts algorithm, by integrating a new data structure into the traditional Roberts algorithm. In the end, implemented the hidden line removal algorithm which could meet the special requirement of outputting the hidden lines in the form of dotted line as the traditional solid geometry teaching does.

对三维立体场景中有名的线消隐算法——Roberts算法进行了研究并作了改进,在提高效率的同时将它与一定的数据结构相结合,实现了一种满足立体几何教学软件中把隐藏线以虚线形式输出的特殊要求的线消隐算法。

Now the triangular mesh model simplification algorithm based on edge collapse is very complex.Combining Garland's quadric error metrics algorithm and Hoppe's progressive mesh algorithm,a new algorithm for triangular mesh dynamic model simplification based on cost function is proposed in this paper.

目前基于边折叠的三角网格模型简化算法边折叠计算复杂,没有有效进行动态简化,结合Garland的二次误差度量算法和Hoppe的累进网格算法,提出了基于代价函数的三角网格模型动态简化算法。

Firstly, two covering hypersphere algorithms were proposed, referred to as minimum volume covering hypersphere algorithm and moving medium centers covering hypersphere algorithm, to heuristically and rapidly select the promising hidden center vectors from all the training samples. Then the particle swarm optimization algorithm combined with recursive orthogonal least square algorithm was used to further prune the initial hidden centers and optimize the control parameters.

为在实际应用中加速优化速度,降低优化计算复杂度,首先提出了最小体积覆盖超球和移动平均中心覆盖超球两种算法,用于启发式的从训练样本中快速的初选出径向基概率神经网络的隐中心矢量,然后将粒子群优化算法和 ROLSA 结合进一步优选隐中心矢量,同时优化核函数控制参数,实现径向基概率神经网络的全结构优化。

Based on forecasting model, five algorithms are presented, that is, 1 algorithm for free motion of the plant when the analytical solution is available, 2 numerical differentiation algorithm, 3 improved numerical differentiation algorithm, 4 sensitivity matrix algorithm and 5 reference integral curve method.

推导了具有预测模型的算法的形成过程,指出了这种算法的物理实质,给出了基于预测模型算法的五种具体算法:1、系统自由运动有解析解时的算法;2、数值微分算法;3、改进的数值微分算法;4、灵敏度矩阵算法;5、基准积分曲线方法。

This paper mainly discusses the Han Character Internal Codes recognition algorithms in the Multi-lingual Environment, and provides four recognition algorithms, such as Internal Code Bound Recognition Algorithm, Interpunction Recognition Algorithm, Han Character Frequency Recognition Algorithm and Semantic Recognition Algorithm.

在此基础上,本文对不同的识别算法进行分析和评估。在对目标样本的测试中,以上算法的识别率最高可以达到 99 9%以上。1 前言汉字内码向ISO/IEC 1 0 6 46过渡是必然的趋势,但这需要一个较长的过渡期,在这期间计算机内将存在多种标准不一,互不兼容的内码,称之为多文种的环境[1] 。

In the meantime, we got several achievements during the process:Firstly, a sequence encryption algorithm of real-time video in use of one dimension piece-wise linear chaotic map is carried out. This algorithm makes use of Inter' s SSE2 special dictates and makes nonlinear change of chaotic sequences.As a result, the algorithm not only encrypts faster, but also resists several cipher analysis methods. Secondly, this paper presents a block encryption algorithm of real-time video based on chaotic neural network which makes use of numerical transient chaotic neural network to produce chaotic sequences and uses these sequences to do encryption.

同时,在实现系统的过程中,取得了以下研究成果:(1)提出了一种利用一维的分段线性混沌映射来对实时视频进行序列加密的算法,该算法利用Inter的SSE2专用指令集来实现,并对产生的混沌序列进行了有效的非线性变换,从而使该算法不仅加密速度快,并且能有效的抗多种密码分析;(2)提出了一种利用混沌神经网络对实时视频进行分组加密的算法。

Based on the analysis of research achievements of combination algorithm on integer programming, the binary combination algorithm of 0-1 programming will be analyzed. The genetic binary combination algorithm and random binary combination algorithm will be presented which can be used to solve the running organization model of local trains in railway terminal.

在分析整数规划问题组合算法研究情况的基础上,对0—1规划的二进制组合算法进行了具体分析,并结合铁路枢纽小运转列车运行组织模型的实际情况,提出了求解0—1规划的遗传二进制组合算法和随机二进制组合算法。

The paper analyses material transportation problem and give the solvable methods; analyses delivery vehicle route problem, and then construct its corresponding mathematical model and present a heuristic algorithm based on C—W algorithm; analyses the optimum scheduling problem of trucks, and then construct its corresponding mathematical model and put forward a new algorithm; analyses the Postal Transportation Problem which will perhaps be used in supply chain of manufacturing system, and then construct its corresponding mathematical model and present an approximation algorithm.

分析了制造系统供应链中供需平衡、供需不平衡、有转运等各种情况下的物资调运问题,给出了求解方法;分析了制造系统供应链配送作业中的配送车辆路线问题,建立了相应的数学模型,提出了一种基于C-W算法的启发式算法,该算法较好地解决了有时间约束的配送问题;分析了制造系统供应链中的货运卡车优化调度问题,建立了相应的数学模型,提出了一种基于表上作业法的求解算法;分析了制造系统供应链中有潜在利用价值的邮政运输方式问题,在详细描述了该问题的基础上,建立了相应的数学模型,提出了一种近似求解算法,该算法较好地解决了邮政运输方式这样的多种物流、多种运输方式,有严格时限和众多外部约束的特大型、复杂、并行的交连系统的计划调度问题。

Based on the existed theory of mareoids and fuzzy matroids, this thesis studies the closed regular fuzzy matroid and its fundamental sequence, the fuzzy base and its algorithm of closed fuzzy matroids, the fuzzy circuit and its algorithm of closed fuzzy matroids and so on. The main contributions of this thesis are as follows: 1 The necessary and sufficient condition of closed regular fuzzy matroid and a property of its fuzzy dual matroid are found by studying some properties of closed regular fuzzy matroid. 2 By studying some properties of fuzzt bases of closed fuzzy matroid, the necessary and sufficient condition of judging fuzzy bases of closed fuzzy matroids and some corollaries are found. In the end, an algorithm of obtaining a fuzzy base is given. 3 By studying some properties of fuzzt circuits of closed fuzzy matroid, some necessary and sufficient conditions of using its fundamental sequence to express fuzzy circuits are found. An algorithm of obtaining a fuzzy circuit is given. 4 By studying the fundamental sequence of closed regular fuzzy matroid, some necessary and sufficient conditions of fundamental sequence of closed regular fuzzy matroid are found.

本文在现有拟阵和模糊拟阵理论的基础上,研究了闭正规模糊拟阵及其基本序列,闭模糊拟阵的模糊基及算法、模糊圈及算法等内容,现分述如下: 1研究了闭正规模糊拟阵的一些性质,得到了闭正规模糊拟阵的充要条件及其模糊对偶拟阵的一个性质; 2研究了闭模糊拟阵模糊基的性质,找到了闭模糊拟阵模糊基的充要条件和几个推论,最后还给出了求模糊基的算法; 3研究了闭模糊拟阵模糊圈的性质,找到了用基本序列来表达模糊圈的几个充要条件,并给出了求模糊圈的算法; 4研究了闭正规模糊拟阵的基本序列,找到了闭正规模糊拟阵的基本序列的几个充要条件。

From the starting value selection method in the Fuzzy ISODATA algorithm, used the method of maximal matrix element to ascertain the number of classification, the theoretical analysis of repeated test, and finally, the improved fuzzy ISODATA algorithm is obtained. The algorithm reduced sensitivity to the starting value. The algorithm can highly effective clustering analyze and obtains a stable result, so it presents an efficient way of improving the contribution value of custom service.

研究中先对模糊ISODATA聚类演算法中,初始划分矩阵和分类数的确定,并使用最大矩阵元素法,求得最佳化演算法中其他参数值,最后在CRM系统实际验证和分析中,采用本研究改良之模糊ISODATA聚类演算法,对汽车销售公司实施客户模组分类,经实验证明所得到的聚类结果,可有效解决一般聚类方法受限於参数设定敏感度的困扰,并使聚类精确度提高,有效排除杂讯敏感的影响,使聚类效果大幅提升,可帮助行销人员做出预测,制订出针对客户差异化的行销策略,提高客户服务的贡献价值。

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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。

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。

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