查询词典 compression of data

The article will mine Data-Item set compression to a Boolean Vector Matrix.The algorithm only needs to scan the database one time and rational use of data storage structure so that it would not generate a large number of candidate sets.

将挖掘的数据事务集压缩到一个布尔型向量矩阵中，只需扫描数据库一次，合理利用数据存储结构，且不会产生大量的候选集。

Data compression provides a significant (not less than 3 times less) decrease in the volume of data transferred via the network.

数据压缩提供了一个显著性（不低於3倍，以较低者为准）减少，在量传输的数据通过网络。

However this advantage is at the cost of massy quantity of data that brings difficulties of images' storage and transmission. So it is very important to search a high effective hyperspectral images' data compression algorithm .

然而高光谱图像的这种具有较高谱分辨率的优越性是以其较大的数据量及较高的数据维为代价的，高光谱图像巨大的数据量，给数据存储和传输带来困难，因此在现有条件下，寻找一种有效的高光谱图像压缩方法具有十分重要的实际意义。

For power system mass data transmission, a practical method of data compression is put forward.

针对电力系统大量录波信号的传输问题，提出了一种压缩数据的实用方法。

By using the new scheme, the compression ratio for general meteorology grid data can be effectively promoted, and the compressing process of data is completely scatheless within available precision.

大气是一种连续介质，格点资料是反映其动力学及热力学性质的连续物理量的采样和量化，相邻格点间存在很大的相关性。

Image compression is the image data according to certain rules, transformation and combination of the amount of data to use as little as possible to represent the image, the image that is the right image data "downsizing."

影像压缩是对影像数据按照一定的规则进行变换和组合，用尽可能少的数据量来表示影像，形象地说，就是对影像数据"瘦身"。

The algorithm realizes the compression for large number of data in high speed and high compression ratio in undamaged way .

该压缩算法在不损失数据的前提下，实现了对海量数据的快速，高压缩比压缩。

When we designed the system, we considered some key factors such as the system must deal with and store a great deal video and audio data, the capability of the hard disk in the server and client, hi the part of video compression, we choose the currently MPEG-4 video constringent card to complete the collecting and compression of the video and audio signals .

在论文研究与实用系统设计中，充分关注到大量视音频数据的处理、存储以及服务器和远程客户端的硬盘容量等关键因素，视音频压缩采用了最新的MPEG-4视音频压缩卡进行视音频信息的采集和压缩。

As a large amount of data is always involved in representing any form of multimedial, therefore, data compression and data management are the core of multimedial technology.

多媒体最明显的特征便是巨大的数据量，它使得对多媒体数据的压缩和管理成为多媒体技术的核心。

Compression - Compression options increase the effective throughput on PPP connections by reducing the amount of data in the frame that must travel across the link. The protocol decompresses the frame at its destination.

压缩 –压缩选项藉著降低经过连结讯框中资料量，来增加在点对点连线上实际的网路流量，该协定在目的端解除讯框的压缩。

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。