In computing:
* Operating system kernel: The core of an operating system, responsible for managing hardware resources and providing essential services to other programs. It acts as an intermediary between applications and the hardware.
* Kernel (data structure): A data structure used in machine learning, specifically in Support Vector Machines (SVMs). It represents the support vectors, which are the data points closest to the decision boundary.
In other contexts:
* Kernel (grain): The edible part of a seed, often referred to as the "heart" of the grain.
* Kernel (mathematics): A function that transforms data into a different representation, often used in machine learning and statistical analysis.
* Kernel (physics): A small, dense object at the center of an atom, containing protons and neutrons.
To understand the meaning of "kernel" in a specific context, you need to consider the surrounding words and the overall topic.
For example, if you are reading a book about computer programming, "kernel" likely refers to the operating system kernel. If you are reading a scientific article about physics, "kernel" might refer to the atomic nucleus.
Please provide me with more context so I can give you a more precise definition.