AdaGrad vs RMSProp vs Adam: Why Adam is the Most Popular? – Day 38

A Comprehensive Guide to Optimization Algorithms: AdaGrad, RMSProp, and Adam In the realm of machine learning, selecting the right optimization algorithm can significantly impact the performance and efficiency of your models. Among the various options available, AdaGrad, RMSProp, and Adam are some of the most widely used optimization algorithms. Each of these algorithms has its own strengths and weaknesses. In this article, we’ll explore why AdaGrad ( which we explained fully on day 37 ) might not always be the best choice and how RMSProp & Adam could address some of its shortcomings. AdaGrad: Why It’s Not Always the Best Choice What is AdaGrad? AdaGrad (Adaptive Gradient Algorithm) is one of the first adaptive learning rate methods. It adjusts the learning rate for each parameter individually by scaling it inversely with the sum of the squares of all previous gradients. The Core Idea: The idea behind AdaGrad is to use a different learning rate for each parameter that adapts over time based on the historical gradients. Parameters with large gradients will have their learning rates decreased, while parameters with small gradients will have their learning rates increased. The Core Equation: Where: represents the parameters at time step . is the…

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