Class Imbalance

Class imbalance refers to a situation in which the classes in the target variable are not represented equally in a dataset. In other words, one class has significantly more instances than the other class(es). This can cause problems in machine learning models as they tend to be biased towards the majority class, leading to poor performance on the minority class. Class imbalance is a common problem in many real-world applications such as fraud detection, medical diagnosis, and anomaly detection. To address this issue, various techniques can be used such as resampling methods (oversampling or undersampling), cost-sensitive learning, and ensemble methods. Resampling methods involve either increasing the number of instances in the minority class (oversampling) or decreasing the number of instances in the majority class (undersampling). Cost-sensitive learning involves assigning different misclassification costs to different classes. Ensemble methods combine multiple models to improve the performance on the minority class.
Your Previous Searches
Random Picks
  • Software Modules: Software modules refer to independent components of a software system that can be developed, tested, and maintained separately. These modules are designed to perform specific functions and can be combined to create a larger software system. ... Read More >>
  • Back-end Development: Back-end development refers to the server-side of web development where the focus is on building and maintaining the technology that powers the front-end of a website or application. This includes the server, database, and application logic ... Read More >>
  • Learning Management Systems: Learning Management Systems (LMS) are software applications designed to manage, deliver, and track educational courses and training programs. LMSs provide a centralized platform for instructors to create and deliver content, monitor student ... Read More >>
Top News

World awaits Nvidia earnings report, more on Jaguar's new moves...

Artificial intelligence chip maker Nvidia will announce its latest earnings as investors anxiously await good news. Also, Jaguar is targeting younger buyers as it prepares to release more details on i...

News Source: CBS News on 2024-11-20

US gathers allies to talk AI safety, Trump's vow to undo Biden's AI policy overs...

President-elect Donald Trump has vowed to repeal President Joe Biden’s signature artificial intelligence policy when he returns to the White House for a second term...

News Source: ABC News on 2024-11-20

Elon Musk asked people to upload their medical data to X so his AI company could...

Health care experts are worried about Grok’s potential to breach patient privacy....

News Source: Fortune on 2024-11-20

Bitcoin billionaire Barry Silbert talks about his next big bet—on ‘decentral...

Silbert will be CEO of Yuma, a new DCG subsidiary focused on the AI ecosystem tied to Bittensor blockchain....

News Source: Fortune on 2024-11-20

Chief transformation officers join the C-suite to drive innovation at speed...

Companies are grappling with a faster pace of innovation. The chief transformation officer can help across the organization....

News Source: Business Insider on 2024-11-20