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Machine Learning Algorithms for Data Science Applications

Nandini

Apr 14, 2023

Types of Machine Learning

There are three main types of machine learning: supervised learning, unsupervised learning, and reinforcement learning.

Supervised Learning

Supervised learning is a type of machine learning in which the machine learns from labelled data. The data is labelled with the correct output, and the machine learns to map the input to the correct output.

Unsupervised Learning

Unsupervised learning is a type of machine learning in which the machine learns from unlabeled data. The machine learns to find patterns and structure in the data without any prior knowledge of the correct output.

Machine Learning Algorithms

Regression

Regression is a supervised learning algorithm used to predict continuous values. It is used to predict values based on historical data.

Dimensionality Reduction

It is used to simplify the data and make it easier to analyse.

Neural Networks

Neural networks are a type of machine learning algorithm inspired by the structure of the human brain. They are used to model complex relationships between inputs and outputs.

Support Vector Machines

Support vector machines are a type of machine learning algorithm used for classification and regression problems. They are used to find the best boundary between two classes.

Naive Bayes

Naive Bayes is a probabilistic machine learning algorithm used for classification problems. It is based on Bayes' theorem and assumes that all features are independent.

K-Nearest Neighbors

It is used to find the k-nearest data points to a given point and predict its label or value based on the majority of those k-nearest points.

Gradient descent is an optimization algorithm used to find the minimum of a function. It is used to train machine learning models by minimising the cost function.

FAQs:

Q. What is machine learning?

Machine learning is the process by which a machine learns from data without being explicitly programmed.

Q. What are the types of machine learning?

There are three main types of machine learning: supervised learning, unsupervised learning, and reinforcement learning.

Q. What are some common machine learning algorithms?

Some common machine learning algorithms include classification, regression, clustering, dimensionality reduction, neural networks, decision trees, random forests, support vector machines, naive Bayes, k-nearest neighbours, and gradient descent.

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