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2013-05-23 12:21
求翻译：By definition, closed patterns are patterns to which it is impossible to add any item without decreasing its frequency.We can therefore derive frequent patterns from closed patterns,resulting in a lower complexity: mining closed patterns is on average polynomial in the number of items [17] whereas usual techniques are 是什么意思？ 待解决
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By definition, closed patterns are patterns to which it is impossible to add any item without decreasing its frequency.We can therefore derive frequent patterns from closed patterns,resulting in a lower complexity: mining closed patterns is on average polynomial in the number of items [17] whereas usual techniques are
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