Mean reversal for stochastic hybrid systems
โ Scribed by Andrzej Korzeniowski
- Publisher
- Elsevier
- Year
- 2008
- Tongue
- English
- Weight
- 286 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1751-570X
No coin nor oath required. For personal study only.
โฆ Synopsis
Consider two discrete time Markov chains on a finite state space with ยฑ1 win or lose payoff subject to transition between the states. We introduce a class of processes whose cumulative expected payoffs are decreasing in time but, whenever the processes are chosen at random by flipping a fair coin, the expected payoff for the randomized process becomes increasing in time. The seemingly counterintuitive long time run mean reversal generalizes the idea of combining two losing games into a winning one, known as Parrondo's Paradox.
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