English

A pair of universal sequence-set betting strategies

Data Structures and Algorithms 2015-12-23 v9 Computational Complexity

Abstract

We introduce the sequence-set betting game, a generalization of An. A. Muchnik's non-monotonic betting game. Instead of successively partitioning the infinite binary strings by their value of a bit at a chosen position, as in the non-monotonic game, the player is allowed to partition the strings into any two clopen sets with equal measure. We show that, while there is no single computable sequence-set betting strategy that predicts all non-Martin-L\"of random strings, we can construct two strategies such that every non-Martin-L\"of random string is predicted by at least one of them.

Keywords

Cite

@article{arxiv.1210.5968,
  title  = {A pair of universal sequence-set betting strategies},
  author = {Tomislav Petrović},
  journal= {arXiv preprint arXiv:1210.5968},
  year   = {2015}
}