%0 Journal Article %T Approximation of target problems in Blackwell spaces %A Giacomo Aletti %A Diane Saada %J Mathematics %D 2009 %I arXiv %X On a weakly Blackwell space we show how to define a Markov chain approximating problem, for the target problem. The approximating problem is proved to converge to the optimal reduced problem under different pseudometrics. A computational example of compression of information is discussed. %U http://arxiv.org/abs/0901.1871v1