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<a accesskey="3" href="page.php?w=Data_compression&amp;p=2">3.Next</a>
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<p>In <a href="page.php?w=information_theory">information theory</a>, <b>data compression</b>, <b>source coding</b>, or <b>bit-rate reduction</b> is the process of encoding <a href="page.php?w=information">information</a> using fewer <a href="page.php?w=bit">bit</a>s than the original representation. Any particular compression is either <a href="page.php?w=lossy">lossy</a> or <a href="page.php?w=lossless">lossless</a>. Lossless compression reduces bits by identifying and eliminating <a href="page.php?w=Redundancy_%28information_theory%29">statistical redundancy</a>.</p><p>
<a accesskey="3" href="page.php?w=Data_compression&amp;p=2">3.Next</a>
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