GroupNone (concept)

GroupNone is a concept in computer science and machine learning that refers to the absence of a specific group or category within a dataset. It acts as a default or baseline class indicating that an item does not belong to any of the predefined groups. This concept is useful for handling undefined or miscellaneous cases in classification tasks, ensuring the system can recognize when data does not fit existing categories. Essentially, GroupNone provides a way to manage outliers or unclassified data points in a structured, systematic manner.