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		<title>Recommender Systems from First Principles: A Complete Study Guide</title>
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					<comments>https://vivekbose.com/recommender-systems-from-first-principles-a-complete-study-guide.html#respond</comments>
		
		<dc:creator><![CDATA[Vivek]]></dc:creator>
		<pubDate>Sat, 08 Aug 2026 20:03:14 +0000</pubDate>
				<category><![CDATA[AI]]></category>
		<category><![CDATA[collaborative-filtering]]></category>
		<category><![CDATA[machine-learning]]></category>
		<category><![CDATA[matrix-factorization]]></category>
		<category><![CDATA[recommender-systems]]></category>
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					<description><![CDATA[<p>Published: August 9, 2026 Study Guide 1. Introduction and Problem Formulation Recommender systems are among the most widely deployed machine learning applications in the world. Every major streaming service, online store and social feed relies on them to surface content that a user is likely to enjoy. This guide develops the theory from first principles, [&#8230;]</p>
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