Iteration
- See also: Machine learning terms
=Iteration in Machine Learning
Machine learning is a subfield of artificial intelligence that seeks to develop algorithms and statistical models that can learn from data and make predictions or decisions based on it. One key concept in machine learning is iteration; this concept helps ensure success when applying the learned algorithm or model.
Iteration is the process of repeating a task multiple times to improve outcomes. In machine learning, iteration is used to optimize parameters within models in order to minimize error or loss functions - which measure differences between predicted output and actual output, serving as an evaluation criterion for how well a model performs.
Machine learning iterates using an optimization algorithm such as gradient descent or stochastic gradient descent. The optimization begins with an initial set of parameters and iteratively updates them based on the gradient of the loss function, which is the derivative of that loss function with respect to these same parameters. The gradient provides guidance on which direction updates should be made in order to minimize loss.
The iteration process continues until either the loss function reaches a minimum or some stopping criteria is met, such as an upper limit on iterations or a change in the loss function below a specific threshold. Once these parameters have been determined after each iteration, they can be used to make predictions or decisions regarding new data sets.
Explain Like I'm 5 (ELI5)
Iteration in machine learning is like making educated guesses to find the correct answer. Imagine playing a guessing game with friends and they tell you if your guess is too high or low; using that information, you can use it to make an even better guess the next time around. This process of making one guess and using feedback for further refinement is known as iteration.
Machine learning relies on iteration to help computers learn from data. The computer begins with an initial guess about how to make predictions, and then updates its guess according to how well it did. This cycle continues until it gets as close to the right answer as possible.
Explain Like I'm 5 (ELI5)
Imagine you have a large bag of candy and you want to find the yummiest treat within it. To do this, you could taste each candy one by one and decide if it's tasty or not - this process is known as "iteration".
Machine learning uses a similar process to find the optimal solution to problems. Instead of candy, we provide instructions that the computer can follow to make a decision or solve an issue. And just like tasting each candy to find which is yummiest, this computer runs through these instructions many times with small modifications each time until it finds the ideal solution - this iterative process being known as "iteration".