What Is Logistic Regression in Machine Learning?

What Is Logistic Regression in Machine Learning?
Logistic Regression. Logistic Regression is a Machine Learning algorithm which is used for the classification problems, it is a predictive analysis algorithm and based on the concept of probability. The hypothesis of logistic regression tends it to limit the cost function between 0 and 1 .

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In this way, what is meant by logistic regression?

Logistic regression is a statistical method for analyzing a dataset in which there are one or more independent variables that determine an outcome. The outcome is measured with a dichotomous variable (in which there are only two possible outcomes).

Additionally, what is loss function in logistic regression? Loss function for Logistic Regression The loss function for linear regression is squared loss. The loss function for logistic regression is Log Loss, which is defined as follows: Log Loss = ∑ ( x , y ) ∈ D − y log ? ( y ′ ) − ( 1 − y ) log ? where: ( x , y ) ∈ D.

One may also ask, what is meant by regression in machine learning?

Linear Regression is a machine learning algorithm based on supervised learning. It performs a regression task. Regression models a target prediction value based on independent variables. It is mostly used for finding out the relationship between variables and forecasting.

What is the difference between linear and logistic regression?

The essential difference between these two is that Logistic regression is used when the dependent variable is binary in nature. In contrast, Linear regression is used when the dependent variable is continuous and nature of the regression line is linear.

Related Question Answers

Where logistic regression is used?

Logistic regression is used in various fields, including machine learning, most medical fields, and social sciences. For example, the Trauma and Injury Severity Score (TRISS), which is widely used to predict mortality in injured patients, was originally developed by Boyd et al. using logistic regression.

What are the types of regression?

Types of Regression
  • Linear Regression. It is the simplest form of regression.
  • Polynomial Regression. It is a technique to fit a nonlinear equation by taking polynomial functions of independent variable.
  • Logistic Regression.
  • Quantile Regression.
  • Ridge Regression.
  • Lasso Regression.
  • Elastic Net Regression.
  • Principal Components Regression (PCR)
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Sophia Al-Mansoor

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.