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	<title>Feature extraction function - Revision history</title>
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	<updated>2026-04-26T15:31:33Z</updated>
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		<title>imported&gt;Unknown user at 00:24, 20 January 2026</title>
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		<updated>2026-01-20T00:24:28Z</updated>

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		<title>imported&gt;Unknown user at 02:53, 15 January 2026</title>
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		<updated>2026-01-15T02:53:33Z</updated>

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		<title>imported&gt;Unknown user at 01:42, 15 January 2026</title>
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		<updated>2026-01-15T01:42:27Z</updated>

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		<title>imported&gt;Unknown user at 00:12, 15 January 2026</title>
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		<updated>2026-01-15T00:12:26Z</updated>

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{{CyberTerm|definition=identifies and extracts features/attributes from each digital artifact. The mechanism by which features are picked and interpreted depends on the approximate matching algorithm. The representation of this collection is the similarity digest of the object.|source=NIST SP 800-168}}&lt;/div&gt;</summary>
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