Decision systems and nonstochastic randomness

Thus the informativity of stochastic experiment turned out to depend on the Bayesian system and to coincide to within the scale factor with the previous “value of information”.” V. Ivanenko, Decision systems and nonstochastic randomness, p.208

This book, Decision systems and nonstochastic randomness, written by the Ukrainian researcher Victor Ivanenko, is related to decision theory and information theory, albeit with a statistical component as well. It however works at a fairly formal level and the reading is certainly not light. The randomness it address is the type formalised by Andreï Kolmogorov (also covered in the book Randomness through Computation I [rather negatively] reviewed a few months ago, inducing angry comments and scathing criticisms in the process). The terminology is slightly different from the usual one, but the basics are those of decision theory as in De Groot (1970). However, the tone quickly gets much more mathematical and the book lost me early in Chapter 3 (Indifferent uncertainty) on a casual reading. The following chapter on non-stochastic randomness reminded me of von Mises for its use of infinite sequences, and of the above book for its purpose, but otherwise offered an uninterrupted array of definitions and theorems that sounded utterly remote from statistical problems. After failing to make sense of the chapter on the informativity of experiment in Bayesian decision problems, I simply gave up… I thus cannot judge from this cursory reading whether or not the book is “useful in describing real situations of decision-making” (p.208). It just sounds very remote from my centres of interest. (Anyone interested by writing a review?)

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