数据

Data mining methods such as clustering, association rules, sequential pattern, statistics analysis, characteristics rules, etc.

聚类、关联规则、序列模式、统计分析、特征规则等数据挖掘方法能从这些海量数据中发现有用的知识，使数据真正成为企业的财富，为企业的决策和发展服务。

Undoing a block does not require an expensive sequential scan of a log file. It is simply a matter of locating the right version of the data block within the database.

还原数据块时无需执行代价高昂的日志文件顺序扫描操作，而只需在数据库内确定数据块的正确版本即可。

The proposed method can reconstruct curves from data set with arbitrary topology, such as simply connected, multiple connected and closed scattered points, keep the shape characteristic of point set well, especially in the segments with high curvature, and provide effective methods and technologies for the screw reconstrucion.

因此最短路逼近算法有效地解决了单连通、多连通和封闭的数据点集的曲线重建问题，较好地保持了数据点集的形状和走向，尤其是带尖点的数据点集的形状特征，为旋转面、螺旋面和可展曲面面的重建提供了有效方法和技术。

In this paper,a novel shortest path algorithm based on the famous half-edge structure is introduced.

在分析传统最短路径算法数据结构的基础上，提出并实现了一种以半边数据结构存储网络拓扑数据的最短路径算法。

The system lays NI PXI box,signal conditioning and data acquisition module in different places of the compressor with LabVIEW as the software platform to realize monitoring functions such as multichannel data acquisition,signal analysis,data store,data recall and so on.

通过在压缩机不同位置分布NI PXI机箱和信号调理、采集模块，LabVIEW为软件开发平台，实现了多通道数据采集、信号分析，以及数据存储、历史数据复现等监测功能。

In this paper, a CWE model of the distance education system is provided. In order to enhance the bandwidth utilization factor, a transfer method based on multi-channel is presented. Both the transmission of real-time media stream and time-stamp technologies are introduced to the system to ensure the requirement of real-time characteristic and synchronism, and a simple protocol based on RTP (Real-time Transfer Protocol) and UDP is designed. The method, event simulcast, is also brought forward to reduce the data redundancy and expand the collaboration scale of the system.

本文给出了远程教学的协同工作环境模型；设计中为了提高系统带宽利用率，采用一种更符合实际应用要求的"单播+广播"的有效通信方式；为了解决音视频同步问题，参考实时媒体流和时间戳同步技术，设计了一个基于用户数据报协议UDP和实时传输协议RTP的简单传输协议，实际应用中保证了数据的实时性和同步性；系统采用基于显示同播的事件同播方式，这样在一定程度上降低了数据冗余，同时扩大了系统的用户数量。

This paper presents a design method of an off-line portable scanner, which can be used without computer. We discuss the system based on a synchronous Digital Signal Processor with multicenter, which is used to gather data with high speed. TIs TMS320VC5402 is a sixteen-bit fix processor, and we make it the core of our control system. Because it can not only handle data with high speed but also manipulate the data by abundant arithmetic/logic operations and determine the results of processing which can be output quickly as images.

本文提出了一种能够脱机使用的便携式扫描仪的设计思想，论述了高速多通道同步DSP数据采集系统，以高性能的TMS320VC5402十六位定点DSP为核心，充分利用其强大而高速的数据处理能力对采集的数据进行复杂的运算，并快速以图形方式输出处理结果。

Uniform random sampling is widely applied to many kinds of algorithms in data mining. It processes uniform distribution data set extremely effectively, but easily loses slight cluster and consequently decreases clustering accuracy, when the processing data set is skew distribution.

随机抽样技术已经广泛应用于数据挖掘的各类算法中，它在处理分布均匀的数据集时非常有效，但在处理分布比较倾斜的数据集时容易丢失小的聚类。

If you really need to store some data that is local for this Snakelet, and shared for all users and all requests, you can use the getContext method to obtain the local Snakelet data context.

如果您想存储并共享本地数据和所有请求数据，您可以使用getContext 方法获得当前Snakelet数据。

During a project I worked on, we needed to generate an image that contained live data so that when we emailed our client base, an image was rendered from a snap shot of data within our database.

在我工作的一个项目上，我们需要生成的图像中的实时数据，当我们通过电子邮件的客户基础，形象是从我们的数据库内的数据管理提供拍摄。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。