(1) Any artificial system that performs tasks under varying and unpredictable circumstances without significant human oversight, or that can learn from experience and improve performance when exposed to data sets. (2) An artificial system developed in computer software, physical hardware, or other context that solves tasks requiring human-like perception, cognition, planning, learning, communication, or physical action. (3) An artificial system designed to think or act like a human, including cognitive architectures and neural networks. (4) A set of techniques, including machine learning, that is designed to approximate a cognitive task. (5) An artificial system designed to act rationally, including an intelligent software agent or embodied robot that achieves goals using perception, planning, reasoning, learning, communicating, decision making, and acting.
Sources:
CNSSI 4009-2022 under artificial intelligence from PL 115-232, Sec. 238

  SCAP constructs to uniquely identify assets (components) based on known identifiers and/or known information about the assets.
Sources:
NIST SP 800-128 under Asset Identification

  A machine-based system that can, for a given set of human-defined objectives, make predictions, recommendations, or decisions influencing real or virtual environments.
Sources:
NIST SP 800-218A under artificial intelligence

  The use of attributes and methods to uniquely identify an asset.
Sources:
NISTIR 7693 under Asset Identification

  The attributes and methods necessary for uniquely identifying a given asset. A full explanation of asset identification is provided in [NISTIR 7693].
Sources:
NISTIR 7694 under Asset Identification