A short introduction to information theory and Bayesian Model Averaging

نویسنده

  • Olivier Catoni
چکیده

1.2. Optimal code length for a known source. In the case when PXn (the distribution of X n = (X1, . . . , Xn)) is known and c is arbitrary, minimizing the code length is achieved by sorting A in order of decreasing probabilities. More precisely, let us write A = {bi, i = 1, . . . , d}, where d = |A| is the size of the alphabet and where the blocks of n letters are indexed by order of decreasing probabilities:

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تاریخ انتشار 2012