Abstract
The entropy of a binary symmetric Hidden Markov Process is calculated as an expansion in the noise parameter ε. We map the problem onto a one-dimensional Ising model in a large field of random signs and calculate the expansion coefficients up to second order in ε. Using a conjecture we extend the calculation to 11th order and discuss the convergence of the resulting series.
Original language | English |
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Pages (from-to) | 343-360 |
Number of pages | 18 |
Journal | Journal of Statistical Physics |
Volume | 121 |
Issue number | 3-4 |
DOIs | |
State | Published - Sep 2005 |
Bibliographical note
Funding Information:I.K. thanks N. Merhav for very helpful comments, and the Einstein Center for Theoretical Physics for partial support. This work was partially supported by grants from the Minerva Foundation and by the European Community’s Human Potential Programme under Contract HPRN-CT-2002-00319, STIPCO.
Funding
I.K. thanks N. Merhav for very helpful comments, and the Einstein Center for Theoretical Physics for partial support. This work was partially supported by grants from the Minerva Foundation and by the European Community’s Human Potential Programme under Contract HPRN-CT-2002-00319, STIPCO.
Funders | Funder number |
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European Community’s Human Potential Programme | HPRN-CT-2002-00319 |
Minerva Foundation |
Keywords
- Entropy
- Hidden Markov Process
- Random-field Ising model