A Quick Guide to Gradient Descent and its Variants
Last Updated on July 24, 2023 by Editorial Team
Author(s): Riccardo Di Sipio
Originally published on Towards AI.
And if you do not know where to start from, optimize the learning rate
In machine learning, one deals with some mathematical model z = F(x,θ) which is a function of some input variables x and a set of parameters θ. The model can be for example an artificial and possibly deep neural network. The name of the game is to find the set of parameters that minimize the error in predicting some targets y (or labels in classification problems) starting from some defined input x, i.e. to reduce the quantity F(x,θ)-y as much as possible. Borrowing the jargon and some ideas from optimization theory, if the model F(x,θ) is a differentiable function, i.e…. Read the full blog for free on Medium.
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