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The Basics of Machine Learning

Michael Fralick^1,2, Kieran R Campbell²

¹Division of General Internal Medicine, Sinai Health, Toronto.

|February 6, 2024

Abstract:

The Basics of Machine LearningWhen a person is pregnant, a key question is how to establish the "date" of the pregnancy. Classically, the date was based on the last menstrual period (LMP). For the past 3 decades or more, in high-resource countries, this has been done using "hospital-grade" ultrasound machines, with testing performed by trained sonographers. In many parts of the world, neither the machines nor the trained sonographers are accessible. In an article published in NEJM Evidence, Pokaprakarn et al.¹ asked whether a low-cost handheld ultrasound device combined with artificial intelligence (AI) could substitute for the expensive machines and trained sonographers.

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