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Machine learning for anomaly detection: Elliptic Envelope
Bite-sized data science
Welcome back to anomaly detection; this is 6th in a series of “bite-sized” data science focusing on outlier detection. Today I am writing about a machine learning algorithm called EllipticEnvelope
, which is yet another tool in data scientists’ toolbox for fraud/anomaly/outlier detection.
In case you have missed my previous articles or you are interested in learning more about the topic, find the links below:
Elliptical Envelope
So what is elliptic envelope and what’s the intuition behind the algorithm?
If you have taken geometry classes you are probably familiar with ellipse — a geometric configuration that takes an oval shape on a two-dimensional plane.
The green area in the above diagram is an ellipse. So the algorithm — Elliptical Envelope— creates an imaginary elliptical area…