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We kindly thank Drs Ramachandran and van den Heuvel for their interest in our article.1 2 We broadly defined machine learning (the field concerned with algorithms to find structure or patterns in data) as a set of techniques to enable artificial intelligence (the field concerned with programming computers to mimic human intelligence). Methods commonly taught in statistics classes like linear regression, discriminant analysis, principal components analysis, and so on are used to find structure or patterns in data and can be considered as algorithms for machine learning. It is thus difficult to define a fine line between where statistics ends and where machine learning begins—some of the methods have both flavours …
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Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
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