Mathematical foundations for a theory of confidence structures

  • Authors:
  • Michael Scott Balch

  • Affiliations:
  • Applied Biomathematics, 100 N Country Rd, Setauket, NY 11733, USA

  • Venue:
  • International Journal of Approximate Reasoning
  • Year:
  • 2012

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Abstract

This paper introduces a new mathematical object: the confidence structure. A confidence structure represents inferential uncertainty in an unknown parameter by defining a belief function whose output is commensurate with Neyman-Pearson confidence. Confidence structures on a group of input variables can be propagated through a function to obtain a valid confidence structure on the output of that function. The theory of confidence structures is created by enhancing the extant theory of confidence distributions with the mathematical generality of Dempster-Shafer evidence theory. Mathematical proofs grounded in random set theory demonstrate the operative properties of confidence structures. The result is a new theory which achieves the holistic goals of Bayesian inference while maintaining the empirical rigor of frequentist inference.