The SOFM algorithm based on a neural network and an improved algorithm have a good effect on space compression of hyperspectral remote sensing images.
基于神经网络的SOFM算法及其改进算法取得较好的空间压缩效果，实现了对高光谱遥感图像的有效压缩。
Shannon showed how to calculate this limit, opening the way to the design of compression methods that cram maximum information into the minimum space.
香农展示了如何计算这个限度，这为设计压缩方法将最多的信息填入最小的空间开辟了道路。
For example, you can use compression to save media space, use cloning to duplicate the archive for safety reasons, or restore the data onto another server instance.
比如，可以通过压缩来节约介质空间；或者出于安全的原因，通过克隆来复制存档；再或者将数据恢复到其他服务器实例中。
The following diagram shows an sample of the space savings using the DB2 BACKUP compression algorithm.
下面的图展示了一个通过使用DB 2BACKUP压缩算法来节省空间的示例。
Patterns in the data: the frequency of recurring patterns in the data determines how effective compression will be for a particular table space or partition.
数据中的模式：对于特定的表空间或分区，数据中重复出现的模式的出现频率将决定压缩的效果。
Lossless compression is fine, but reformatting and storing received data for a small percentage gain in space in a large database will cause more issues than it's worth.
无损的压缩虽好，但是为了在大型数据库中节省少量的空间而重新格式化和存储接收的数据，会导致更多问题，实属不值。
Also, database cannot be sized based on this compression ratio as was mentioned in the keynote - it needs extra space for various technical reasons.
还有，在宣讲会上提过，数据库不能根据这个压缩比来衡量大小——由于技术原因它还需要额外的空间。
UWE includes support for unlimited data storage, processors, and memory, as well as deep compression that can reduce disk space usage as much as 80 percent while further enhancing performance.
UWE提供了对无限制数据存储、处理器、内存以及深度压缩的支持，可减少80%的磁盘空间使用量，同时进一步提高性能。
DB2 row compression was designed to reduce disk storage space requirements of database objects.
DB 2行压缩被设计用来减少数据库对象的磁盘存储空间需求。
To save even more space in memory, most video software subjects syntax elements to a further round of data compression.
为了在内存中介绍更多的空间，大部分图像处理软件的语法元素都会让步于新的数据压缩。
Data document compression reduces the space needed to store your application's data.
数据文档压缩降低了存储应用程序数据所需的空间。
For best performance and minimal space consumption, we recommend using database partitioning, range partitioning, compression, and multi-dimensional clustering.
为了获得更好的性能和最小化空间消耗，我们建议使用数据库分区、范围分区、压缩和多维集群。
New compression support for XML data and indexes reduces disk space requirements and can improve runtime performance of I/O-bound operations.
新的XML数据和索引压缩支持可以减少所需的磁盘空间，可以提高受I/O 限制的操作的运行时性能。
Without value compression, DB2 allocates for each LOB the space for storing the LOB location information.
如果不使用值压缩，DB 2为每个lob分配用于存储lob位置信息的空间。
Listing 5 shows how querying this view produces information about the percentage of space saved due to the compression of relational data and XML, respectively.
清单5演示如何查询这个视图，从而了解关系和XML数据的压缩分别节省的空间的百分比。
Whether or not space can be saved by using system default compression depends on the data in the table columns.
使用系统默认值压缩能否节省空间取决于表列中的数据。
Although compression saves disk space, it can add effort.
尽管压缩可以节省磁盘空间，但是也会增加工作量。
For very small tables, the size of the compression dictionary (8 KB to 64 KB) may offset any space savings that compression provides.
对于非常小的表，压缩字典的大小(8KB到64 KB)有可能会抵消掉通过压缩所节省出来的空间。
After compression, the information contained in the 6,029 PDBML documents can be stored in 67.4 percent fewer pages (i.e., three times less space than without compression).
在压缩后，包含在6,029个PDBML文档中的信息存储所占的页面减少了67.4%(即相比不压缩，减少了三倍空间)。
Using the design compression feature, this metric can be reduced to 11 MB of disk space, a savings of about 19 MB per mail file.
使用设计压缩功能，该标准将降低到11MB，每个邮件文件节省了近19 MB。
With the column attribute SYSTEM DEFAULT COMPRESSION, additional space can be saved if columns contain the system default very often.
当使用列属性SYSTEMDEFAULTCOMPRESSION 时，如果列中包含很多的系统默认值，则可以节省更多的空间。
Compression is usually set to optimize storage space and can be set at any one of the following locations.
压缩通常用于优化存储空间，且可在以下任一位置处设置。
I was also in the beta for this, and besides saving space, compression may speed up your system.
我也参加了它的beta测试。除了节省空间之外，压缩还可能提高系统的速度。
The complete definition of that geometry USES 0.9 MB disk space in the Spatial Extender internal format (which USES compression).
按照Spatial Extender内部格式，这个几何图形的完整定义要使用0.9MB的磁盘空间(使用了压缩)。
Myisampack.exe Compresses myisam table use VALUE COMPRESSION in create table statement to use the space saving row format at the column or table level to reduce space required for a table.
exe压缩myisam表在创建表的语句中使用VALUECOMPRESSION，可以在列或表级别上使用节省空间的行格式来减少空间占用。
You can use the SQL statement in Listing 1 below to determine whether setting the table attribute value compression will save space for a table concerned by using the row format of value compression.
可以使用下面清单1中的sql语句来确定，通过设置表属性VALUECOMPRESSION，是否可以因使用值压缩的行格式而节省表的空间。
NULL values are stored with only three bytes, if value compression is active. You can expect space savings especially for numeric values.
如果激活值压缩，则null值的存储只需3个字节。
The compression algorithm is intelligent enough not to compress rows that will not realize in any significant disk-space saving.
压缩算法足够智能，不会压缩那些对节省磁盘空间帮助不大的行。
Data compression utilities allow users to reduce the space required.
数据压缩程序可以使用户减少所需空间。
Data compression utilities allow users to reduce the space required.
数据压缩程序可以使用户减少所需空间。
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