Geodesic
Finding the most probable non-negative solution of systems of linear algebraic equations by the likelihood method
Sibirskij žurnal vyčislitelʹnoj matematiki, Tome 16 (2013) no. 3, pp. 217-228.

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A probabilistic method for regularization is proposed. This method enables one to obtain a non-negative solution to systems of linear algebraic equations. A theorem of existence of the best possible solution is proved. A numerical example of the method application is given. 
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V. S. Antyufeev. Finding the most probable non-negative solution of systems of linear algebraic equations by the likelihood method. Sibirskij žurnal vyčislitelʹnoj matematiki, Tome 16 (2013) no. 3, pp. 217-228. http://geodesic.mathdoc.fr/item/SJVM_2013_16_3_a2/

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