AI candidate screening runs on a specific set of algorithms — machine learning, natural language processing, deep learning, and computer vision — each solving a distinct problem in the hiring pipeline. Understanding what each technology actually does separates the teams that deploy AI strategically from those who buy software and hope. This glossary gives HR and recruiting leaders the vocabulary they need to make those distinctions.

This glossary defines the AI, machine learning, and NLP terms recruiters encounter when evaluating or building resume parsing automations. Knowing what these terms mean — and what they don't — is the prerequisite for buying the right tools, asking vendors the right questions, and building automation pipelines that hold up under real hiring volume.