Marginal Inferential Models: Prior-Free Probabilistic Inference on Interest Parameters

By Ryan Martin, Chuanhai Liu. 2013

85 citations recorded by the source corpus.

The inferential models (IM) framework provides prior-free, frequency-calibrated, and posterior probabilistic inference. The key is the use of random sets to predict unobservable auxiliary variables connected to the observable data and unknown parameters. When nuisance parameters are present, a marginalization step can reduce the dimension of the auxiliary variable which, in turn, leads to more efficient inference. For regular problems, exact marginalization can be achieved, and we give conditions for marginal IM validity. We show that our approach provides exact and efficient marginal inference in several challenging problems, including a many-normal-means problem. In nonregular problems, we propose a generalized marginalization technique and prove its validity. Details are given for two benchmark examples, namely, the Behrens–Fisher and gamma mean problems.

Subfields: Artificial Intelligence, Statistics and Probability

View Paper: https://www.semanticscholar.org/paper/71b89e247809a8c76f1546d57d85b4268158bfb0

How researchers see this paper

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In Artificial Intelligence

  1. Jan Hannig
  2. Hari Iyer
  3. Thomas C.M. Lee
  4. Randy C. S. Lai
  5. Ryan Martin

In Statistics and Probability

  1. Jan Hannig
  2. Randy C. S. Lai
  3. Hari Iyer
  4. Thomas C.M. Lee
  5. Ryan Martin

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