Santa Fe Institute

SFI Working Paper Abstract

Title: Information Accessibility and Cryptic Processes: Linear Combinations of Causal States
Author(s): John Mahoney, Christopher Ellison, James Crutchfield
Files: [pdf]
Paper #: 09-06-019
Date: June 1, 2009
Abstract: We show in detail how to determine the time-reversed representation of a stationary hidden stochastic process from linear combinations of its forward-time ǫ-machine causal states. This also gives a check for the k-cryptic expansion recently introduced to explore the temporal range over which internal state information is spread.
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