处理数据

Therefore, how to preprocess data to improve the data quality is very important on accurateness of data analysis results.

因此，如何预处理数据对于提高数据质量以及数据分析结果的正确有效性有着重大的影响。

Given that current GISs already have a hard time ensuring data integrity even in the standard, atemporal case, it is somewhat difficult to forecast whether they will soon be capable of handing data integrity in space-time cube models.

当前的 GIS 甚至在标准版的非时间研究案例中都难于得证时间数据的完整性，那么更加难预测何时能在时间立方模型中处理数据的完整性。

In addition,this system uses plenty of Extended Direct Memory Access to transport and process image data,which results in stable and high performance.

在数据传输和处理过程中大量使用扩展的直接存储器访问(Extended directmemory access，EDMA)来加快处理数据的速度并提高了系统的性能。

In discrete selection, one or more discrete objects are selected, and the incoming data is handed to the selected discrete objects, which process the data in their own ways.

在离散选择中，一个或多个离散对象选中。输入的数据交给选中的离散对象，它们各自以自己的方式处理数据。

Based on survey of existing methods, in this dissertation: aimed to the reliability of stereo image matching in digital photogrammetric, a new matching strategy utilized local continuity constraints encoded by triangulation of the well-defined points is proposed; concerned with the inherent efficient, accuracy and size constraint problems of existing topographic structure extraction approach, an efficient, accurate and large scale data adapted approach based on the combination of vector and raster processes are proposed.

在对国内外这方面工作进行总结分析的基础上，针对数字摄影测量立体像对影像匹配的可靠性问题，首次提出了基于良好匹配点三角形约束下影像匹配传播方法；为了解决以往基于邻域操作的地形结构线提取算法效率低下、结果准确性差和处理数据规模限制等问题，提出了适用于大规模规则格网DEM数据的基于矢量、栅格操作相结合的地形结构线快速提取算法。

My first flight was 13 hours long, and it took me to a different country for a Master's degree in Electrical Engineering at Marquette University, where I worked on GasDay project to take a data massage and perform forecasting modeling for national gas utilities across the country, believing that "when you massage the data enough, you get a message from God."

人生的第一次航班行程13个小时，把我带到一个陌生的国度，在美国马凯特大学攻读电子工程的硕士学位。有了在GasDay实验室处理数据建立预测模型的经验，我们坚信"完美的数据建模能带给我们上帝的信息"。

And the author also gave us a example, the method is a new method to lower the dimensions of data.

该方法是不同于主成分分析法的一种新的降维方法，它能有效地减小多重共线性问题带来的影响，尤其在处理数据多重相关性突出的武器费用数据时，该方法有着良好的效果，最后，作者用一个实用算例证明了其有效性和可行性。

Allegorically the inner memory is the"big storehouse"of the CPU data processing, all the instructions and data processed by CPU must be transferred by inner memory to the other parts of computer system.

内存可以说是CPU处理数据的&大仓库&，所有经过CPU处理的指令和数据都要经过内存传递到电脑其他配件上，因此内存性能的好坏，直接影响到系统的稳定性和运行性能。

The method to configure RED parameters based on network properties is also presented. Simulations show that the modified Random Early Detection algorithm really performs better than the original Random Early Detection algorithm and can work for a much wider range of traffic. Finally, whether the assured service mechanisms i. e. an edge router tags every arriving packet of a TCP flow based service profile and core router drops packets differently at congestion using active queue management scheme is possible to provide a throughput consistent with target rate, is investigated under different network scenarios. Different factors including target rate tagged algorithm, RIO algorithm and TCP congestion control mechanism how to affect the throughput of an assured service TCP flow are examined. Based on a fluid model. we then derive a model of an assured service TCP flow, which is the function of round trip delay, packet loss rate and token bucket parameters. Based on this model, we observe that in some cases it is possible to regulate the token bucket parameters to gain a consistent throughput with the target rate, while in other cases there exist ranges of values of the achieved rate for which the token parameters have no influence. With the latter, some modified TCP congestion control mechanisms to assure TCP throughput are proposed.

最后，在区别服务网络结构内，研究了当前提出的一种边缘路由器根据服务合同标记、分类数据包，结合内部路由器采用主动队列缓冲管理机制区别处理数据包的确信服务机制是否可在不同网络情况下使TCP连接获得同目标速率相一致的、公平的吞吐量问题；指出影响TCP连接获得同目标速率相一致吞吐量的主要因素是目标速率大小、标记算法参数和TCP连接的拥塞控制算法；对此，基于流模型假设，首次推导出一个以端到端时延、数据包丢失率、漏桶参数为变量的确信服务TCP连接吞吐量模型；利用这个模型进行分析，得到主要结论是在一些情况下可通过设置合适的漏桶参数得到同目标速率更一致的吞吐量，而在另一些网络情况下不管如何设置漏桶参数都不能使TCP连接获得同目标速率一致的吞叶量；对于后一些情况，还初步讨论了改进TCP拥塞控制算法来改善TCP连接性能的方法。

At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.

本文在广泛的、深入研究的基础上，应用多种信号处理手段来分析处理数据，同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨，本文进行了以下几项工作：（1）提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略；（2）提出了基于WVD分布的连续撞击响应信号的分离策略；（3）提出了基于对数谱拟合方法的钢—钢撞击响应求解模型；（4）提出了基于波形分析的非正常燃烧振动信号的诊断模型；（5）提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型；（6）提出了基于小波近似的喷油正时信号中燃烧位置的自动定位；（7）提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略；（8）提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。