Marginalization like a projection.
Juan Francisco Verdegay-López, Serafín Moral (2001)
Mathware and Soft Computing
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This paper studies the problem of marginalizing convex polytopes of probabilities represented by a set of constraints. This marginalization is obtained as a special case of projection on a specific subspace. An algorithm that projects a convex polytope on any subspace has been built and the expression of the subspace, where the projection must be made for obtaining the marginalization, has been calculated.