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Compression - definitions

Compression - An algorithm used to compact or shrink the amount of space a file takes up on magnetic media.

[Category=Database Marketing ]

Source: Postcom, 20 February 2010 10:17:09, External

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Compression is the reduction in size of data in order to save space or transmission time. For data transmission, compression can be performed on just the data content or on the entire transmission unit (including header data). Content compression can be as simple as removing all extra space characters, inserting a single repeat character to indicate a string of repeated characters, and substituting smaller bit strings for frequently occurring characters. This kind of compression can reduce a text file to 50 percent of its original size.

[Category=Data Security ]

Recall, 02 September 2011 11:54:18, External

compression - [computing] The process of reducing the size of a file or database. Compression improves data handling, storage, and database performance. Examples of compression methods include quadtrees, run-length encoding, and wavelets.

[Category=Geospatial ]

Source: esri, 28 February 2012 09:45:55, External 

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