Validation of Information Fusion
  We motivate and offer a formal definition of validation as it applies to
information fusion systems. Common definitions of validation compare the actual
state of the world with that derived by the fusion process. This definition
conflates properties of the fusion system with properties of systems that
intervene between the world and the fusion system. We propose an alternative
definition where validation of an information fusion system references a
standard fusion device, such as recognized human experts. We illustrate the
approach by describing the validation process implemented in RAID, a program
conducted by DARPA and focused on information fusion in adversarial, deceptive
environments.
