Title
An interval estimator for the unmixing of mixtures with set-based source descriptions
Abstract
The unmixing of mixtures, i.e., the computation of the proportional contribution of a set of sources to a mixture, is of interest to a multitude of applied research disciplines. We consider an unmixing problem in which a mixture is represented by a point in R n , and the sources are represented by subsets of R n . We argue that the proportional contribution of a source of interest to that mixture can naturally be estimated by an interval estimator, as opposed to a more traditional point estimator. An interval estimator is proposed and it is shown that this estimator can be computed efficiently in a variety of cases by solving an optimization problem. We propose an interval estimator for the proportional contribution of a source (or ingredient) to a mixture.Sources (or ingredients) can be represented by means of sets.We present a computationally tractable optimization problem to compute an interval estimate in practice.
Year
DOI
Venue
2015
10.1016/j.ijar.2015.03.004
Int. J. Approx. Reasoning
Keywords
Field
DocType
interval estimation,mathematical optimization,mixtures
Point estimation,Applied mathematics,Interval estimation,Minimum-variance unbiased estimator,Discrete mathematics,Mathematical optimization,Stein's unbiased risk estimate,Minimax estimator,Optimization problem,Mathematics,Estimator,Computation
Journal
Volume
Issue
ISSN
60
C
0888-613X
Citations 
PageRank 
References 
0
0.34
11
Authors
3
Name
Order
Citations
PageRank
Jan Verwaeren1505.45
M. Rademaker281.08
Bernard De Baets32994300.39