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text: 'Given an encoding scheme $E$ which gives an [3x4] of a message $m,$ we can in principle design a more efficient coding $E^\\prime$ that gives a shorter encoding of $m.$ For example, $E$ encodes 8-letter English words as a series of letters, $m$ is aardvark, then $E(m)$ is intradependent (because you already know what the message is by the time you've seen "aardv"), so you can define an alternative encoding $E^\\prime$ which encodes "aardvark" as just "aardv", thereby saving three letters.\n\nThe practice of taking an intradependent encoding and finding a more efficient one is known as [compression].',
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