Feature Selection
Feature selection is the process of selecting a subset of relevant features (variables, predictors) for use in model construction. It is an important step in the machine learning pipeline as it helps to improve model performance, reduce overfitting, and increase interpretability. Feature selection can be done through various methods such as filter methods, wrapper methods, and embedded methods. Filter methods use statistical tests to rank features based on their correlation with the target variable. Wrapper methods use a search algorithm to evaluate different subsets of features based on their performance on a specific model. Embedded methods incorporate feature selection as part of the model training process. Feature selection is particularly important in high-dimensional datasets where the number of features is much larger than the number of observations.
Your Previous Searches
Random Picks
- Q-function: In Reinforcement Learning, Q-function is a mathematical function that determines the expected utility of taking a particular action in a given state and following a particular policy thereafter. It maps a state-action pair to a real number ... Read More >>
- L1 Norm: L1 Norm is a mathematical concept used in Data Science and Artificial Intelligence to measure the magnitude of a vector in a space. It is also known as Manhattan distance or Taxicab norm. L1 Norm is calculated by taking the absolute values ... Read More >>
- Conditional Statements: Conditional statements are statements that execute different actions based on whether a certain condition is true or false. In data science and artificial intelligence, conditional statements are used to control the flow of a program or alg ... Read More >>
Top News
Meta approves bonuses of up to 200% of company executives' salaries...
Meta approved a plan to increase bonuses for company executives to up to 200% of their base pay amid layoffs targeting about 4,000 employees....
News Source: Business Insider on 2025-02-21
Dr. Mehmet Oz holds millions from companies that he'd wield power over if confir...
Dr. Mehmet Oz holds millions of dollars worth of shares in health insurance, fertility, pharmaceutical and vitamin companies...
News Source: ABC News on 2025-02-20
Elon Musk quietly built a second mega-data center for xAI in Atlanta with $700 m...
xAI built a massive data center in Memphis last year, but the company has also been quietly setting up another facility in Georgia....
News Source: Business Insider on 2025-02-20
China's Alibaba sees revenue surge on back of artificial intelligence, e-commerc...
Chinese e-commerce firm Alibaba Group Holding posted its fastest revenue growth in over a year, beating analyst expectations as it capitalizes on the artificial intelligence boom in China...
News Source: ABC News on 2025-02-20
Why the billionaire class is kissing Trump’s proverbial ring...
The billionaire set and the massive corporations they represent are not showing deference to the president....
News Source: Al Jazeera English on 2025-02-20