Encord AI & Computer Vision Glossary
What is Regression in AI?
Regression is the machine learning algorithm technique to forecast a continuous numerical output based on a set of input features in artificial intelligence. Because the technique is trained on a labeled dataset with known output values, it is a sort of supervised learning. Regression algorithms are frequently used to forecast future outcomes or trends based on historical data in a range of industries, including banking, real estate, and healthcare. Regression can be used, for instance, by a financial institution to forecast stock prices based on past data, or by a healthcare provider to forecast patient outcomes based on medical history and other variables.
What are the Different Types of Regression Algorithms?
There are several different types of regression algorithms, including linear regression, which assumes a linear relationship between the input features and the output value, and non-linear regression, which allows for more complex relationships between the inputs and outputs. One of the key advantages of regression algorithms is their ability to handle large amounts of data and make predictions quickly. They can also handle missing or incomplete data, as long as there is enough information to make a reasonable prediction. However, regression algorithms can be prone to overfitting, where the model becomes too complex and begins to fit the noise in the data rather than the underlying trends. This can lead to poor generalization and inaccurate predictions of new data. To mitigate this, it is important to carefully select and pre-process the data, and to use techniques such as regularization to avoid overfitting. Regression algorithms are often helpful for forecasting numerical results in a range of applications, but in order to provide correct results, it is crucial to thoroughly evaluate the data and the particular problem at hand.
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