Variance
In statistics, variance is a measure of how spread out a set of data is. It is calculated as the average of the squared differences from the mean. In data science, variance is an important concept in machine learning and predictive modeling. It is used to measure the variability of a dataset and to determine how well a model fits the data. A high variance indicates that the model is overfitting the data, while a low variance indicates that the model is underfitting the data. Variance can be reduced by using regularization techniques such as L1 and L2 regularization, or by using ensemble methods such as bagging and boosting.
Your Previous Searches
Random Picks
- Stored-program Computers: Stored-program computers are a type of computer architecture that allows instructions to be stored in memory alongside data. This means that the computer can read and execute instructions from memory, rather than having to be manually progr ... Read More >>
- Data Type: In Data Science, a data type is a classification of data based on the type of value it holds. It determines the operations that can be performed on the data, the meaning of the data, and the way it is stored. Common data types include integ ... Read More >>
- Liquid Crystal Displays: Liquid Crystal Displays (LCDs) are flat panel displays that use liquid crystals to modulate light and produce images. LCDs are widely used in electronic devices such as televisions, computer monitors, smartphones, and digital watches. The l ... Read More >>
Top News
As the wildfires grew closer, people with disabilities say they often had to fen...
When people with disabilities aren’t included in disaster plans, the results can be deadly, advocates say. They advise that people make plans in case of wildfires or other emergencies....
News Source: CNN on 2025-01-18
These are Sam Altman's predictions on how the world might change with AI...
OpenAI CEO Sam Altman has made several predictions about where we're headed on AGI, superintelligence, agentic AI — and when we might get there....
News Source: Business Insider on 2025-01-18
How scientists with disabilities are making research labs and fieldwork more acc...
Disabled scientists are trying to make research labs and fieldwork more accessible...
News Source: ABC News on 2025-01-18
A battery plant fire in California started during a boom for energy storage...
A fire at a one of the world’s largest battery plants in California contained tens of thousands of lithium batteries that store power from renewable energy sources...
News Source: ABC News on 2025-01-17
A legendary investor who predicted the dot-com crash says there's a key ingredie...
"The markets, while high-priced and perhaps frothy, don't seem nutty to me," Howard Marks said....
News Source: Business Insider on 2025-01-17