Is Stochastic gradient descent a classifier or an optimizer?

machine-learning scikit-learn classification gradient-descent
Arpitha picture Arpitha · Aug 2, 2017 · Viewed 11.2k times · Source

I am new to Machine Learning and I am trying analyze the classification algorithm for a project of mine. I came across SGDClassifier in sklearn library. But a lot of papers have referred to SGD as an optimization technique. Can someone please explain how is SGDClassifier implemented?

Answer

IMN picture IMN · Nov 2, 2017

Taken from SGD sikit-learn documentation

loss="hinge": (soft-margin) linear Support Vector Machine, loss="modified_huber": smoothed hinge loss, loss="log": logistic regression

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