Abstract
We investigate bounded-memory estimators of statistical functionals. It is shown that, for nondegenerate functionals and stochastic processes, it is impossible to achieve consistent estimation with bounded memory. In the positive direction, we show that O(log(1/ε)) states suffice to achieve ε-consistent estimation for a natural class of functionals. A canonical optimal construction is conjectured for arbitrary statistical functionals.
Original language | English |
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Pages (from-to) | 1155-1164 |
Number of pages | 10 |
Journal | Statistics and Computing |
Volume | 22 |
Issue number | 5 |
DOIs | |
State | Published - 1 Sep 2012 |
Keywords
- Automaton
- Bounded memory
- DFA
- Regular approximation
- Statistical estimation
ASJC Scopus subject areas
- Theoretical Computer Science
- Statistics and Probability
- Statistics, Probability and Uncertainty
- Computational Theory and Mathematics